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Chronic ankle instability: Arthroscopic anatomical repair
Inestabilidad crónica de tobillo: reparación anatómica artroscópica
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Arroyo-Hernández, M. Mellado-Romero, P. Páramo-Díaz, L. García-Lamas, J. Vilà-Rico" "autores" => array:5 [ 0 => array:4 [ "nombre" => "M." "apellidos" => "Arroyo-Hernández" "email" => array:1 [ 0 => "martaarroyohdz@hotmail.com" ] "referencia" => array:2 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] 1 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">*</span>" "identificador" => "cor0005" ] ] ] 1 => array:3 [ "nombre" => "M." "apellidos" => "Mellado-Romero" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] ] ] 2 => array:3 [ "nombre" => "P." "apellidos" => "Páramo-Díaz" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] ] ] 3 => array:3 [ "nombre" => "L." 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"apellidos" => "Vilà-Rico" "referencia" => array:2 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] 1 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">b</span>" "identificador" => "aff0010" ] ] ] ] "afiliaciones" => array:2 [ 0 => array:3 [ "entidad" => "Unidad de Artroscopia, Servicio de Cirugía Ortopédica y Traumatología, Hospital Universitario 12 de Octubre, Madrid, Spain" "etiqueta" => "a" "identificador" => "aff0005" ] 1 => array:3 [ "entidad" => "Departamento de Cirugía, Universidad Complutense de Madrid, Madrid, Spain" "etiqueta" => "b" "identificador" => "aff0010" ] ] "correspondencia" => array:1 [ 0 => array:3 [ "identificador" => "cor0005" "etiqueta" => "⁎" "correspondencia" => "Corresponding author." ] ] ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "Inestabilidad crónica de tobillo: reparación anatómica artroscópica" ] ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:7 [ "identificador" => "fig0020" "etiqueta" => "Figure 4" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr4.jpeg" "Alto" => 3035 "Ancho" => 1417 "Tamanyo" => 448743 ] ] "descripcion" => array:1 [ "en" => "<p id="spar0075" class="elsevierStyleSimplePara elsevierViewall">(1) Drilling of two openings, located vertically in the bony landmark; (2) the most distal suture point is passed through a 2.5-mm Biopush Lock knotless anchor (Arthrex, Naples, FL, USA) and inserted into the first hole; (3) 2 implants are used, because they allow a greater surface contact of the ATFL with the fibular bony landmark, as well as better tension distribution, from the biomechanical point of view.</p>" ] ] ] "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0065">Introduction</span><p id="par0005" class="elsevierStylePara elsevierViewall">Sprained ankles are one of the most frequent musculo-skeletal pathologies, constituting more than 10% of daily traumatological emergencies.<a class="elsevierStyleCrossRef" href="#bib0145"><span class="elsevierStyleSup">1</span></a> The most common mechanism of lesion is ankle inversion with the foot in plantar flexion. In this position, the anterior talofibular ligament talofibular anterior (ATFL) acts as the main stabiliser of the ankle. This ligament is the weakest in the lateral ligament complex.<a class="elsevierStyleCrossRef" href="#bib0150"><span class="elsevierStyleSup">2</span></a> The initial treatment in the great majority of ankle sprains is conservative, with a high percentage of good results. This treatment should include a complete programme of rehabilitation, with proper proprioception exercises. In spite of this conservative treatment, there have been reports of failure in between 20% and 40% of the cases, which end up developing chronic ankle instability.<a class="elsevierStyleCrossRefs" href="#bib0155"><span class="elsevierStyleSup">3,4</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">Chronic lateral ankle instability can be linked to multiple pathologies, both intra-articular and extra-articular, as well as varus misalignment of the hindfoot.<a class="elsevierStyleCrossRefs" href="#bib0160"><span class="elsevierStyleSup">4–6</span></a> When conservative treatment of chronic ankle instability fails, surgical treatment is indicated. Numerous surgical techniques to approach this pathology have been described, with direct anatomical repair being the “gold standard”. This technique of open surgery was described by Broström in 1966<a class="elsevierStyleCrossRef" href="#bib0175"><span class="elsevierStyleSup">7</span></a>; after that, modifications of this technique and techniques arthroscopic anatomical repair have been described.<a class="elsevierStyleCrossRefs" href="#bib0180"><span class="elsevierStyleSup">8,9</span></a> However, the success of such repair depends on the quality of the residual tissue. In patients with long-term ankle instability, with poor quality residual tissue, obesity or severe deformities associated, anatomical reconstruction with plasties might be indicated.<a class="elsevierStyleCrossRefs" href="#bib0190"><span class="elsevierStyleSup">10,11</span></a></p><p id="par0015" class="elsevierStylePara elsevierViewall">Several techniques for arthroscopic repair of the ATFL, without associated percutaneous manoeuvres (all-inside), have recently been described. These techniques allow treating both the instability and the associated intra-articular lesions in the same operation.<a class="elsevierStyleCrossRefs" href="#bib0150"><span class="elsevierStyleSup">2,12–14</span></a></p><p id="par0020" class="elsevierStylePara elsevierViewall">The objectives of this study were to assess the preliminary results of all-inside arthroscopic anatomical repair of the ATFL and to analyse the intra-articular lesions associated.</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0070">Material and method</span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0075">Study population</span><p id="par0025" class="elsevierStylePara elsevierViewall">Between May 2012 and January 2013, a total of 21 patients were surgically intervened for lateral chronic ankle instability in our centre. With respect to distribution by sex, 15 patients were male and 6 were female; mean age was 30.43 years (range: 18–48 years). Mean follow-up was 29 months (range: 25–33 months). All the patients were treated using the all-inside technique of arthroscopic anatomical repair, always by the same surgeon.</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0080">Criteria of inclusion</span><p id="par0030" class="elsevierStylePara elsevierViewall">As criteria of inclusion in the study, to guarantee the viability of the tissue repaired, we included patients with a maximum of 3 ankle sprains, with the last of them being of fewer than 9 months of evolution. The mean number of episodes was 2.36 (range: 1–3 episodes), with a mean time since the last inversion trauma of 6.7 months (range: 3–9 months). Patients with obesity, recurrence over prior direct repair, severe associated deformities or neuromuscular diseases and high sport demand patients were excluded.<a class="elsevierStyleCrossRef" href="#bib0215"><span class="elsevierStyleSup">15</span></a></p><p id="par0035" class="elsevierStylePara elsevierViewall">Only patients that had complied with a minimum postoperative follow-up of 6 months, attending periodic revisions regularly, were studied. The revisions were established during the early postoperative period at 2, 4, 8 and 12 weeks and, after that, at 6 months and the first year postoperatively. All the patients studied had carried out a specific postoperative rehabilitation programme.</p><p id="par0040" class="elsevierStylePara elsevierViewall">Clinically, all the patients had a history of previous ankle sprain as relevant trauma. They presented pain spontaneously and upon palpating the lateral side of the ankle. The patients reported sensations of instability and failure during their daily and/or sport activities. The physical examination revealed a varus deformity of the hindfoot in 4 patients. The manoeuvres for exploration of ankle instability, as well as the anterolateral translation test and the varus stress test, were positive in all the patients.<a class="elsevierStyleCrossRef" href="#bib0220"><span class="elsevierStyleSup">16</span></a></p><p id="par0045" class="elsevierStylePara elsevierViewall">As complementary tests, load X-rays were performed, including the Saltzman projection, as well as magnetic resonance imaging (MRI), in all the cases.<a class="elsevierStyleCrossRef" href="#bib0225"><span class="elsevierStyleSup">17</span></a></p><p id="par0050" class="elsevierStylePara elsevierViewall">The results were evaluated based on the American Orthopaedic Foot and Ankle Society (AOFAS) scale<a class="elsevierStyleCrossRef" href="#bib0230"><span class="elsevierStyleSup">18</span></a> before surgery and at 18 months postoperative follow-up. This gave us the data for a functional-clinical study, analysing the results of the AOFAS scale and the moment of restarting prior sport activity.</p></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0085">Surgical technique</span><p id="par0055" class="elsevierStylePara elsevierViewall">In all the cases, the surgical intervention was performed under intrathecal regional anaesthesia. As antibiotic prophylaxis, 2<span class="elsevierStyleHsp" style=""></span>g of intravenous (i.v.) cephalosporin was administered; if the patient was allergic to the beta-lactams, we used 1<span class="elsevierStyleHsp" style=""></span>g i.v. vancomycin.</p><p id="par0060" class="elsevierStylePara elsevierViewall">As for the operation itself, the patient was placed in the supine position. Ischaemia of the limb was performed with a pressure cuff located at the root of the member. The limb affected was positioned with a flexion of the hip and knee of approximately 30° and a support under the proximal third of the leg, so that the ankle was parallel to the floor and free of supports and the operating table. This was done to enable all the plantar and dorsal flexion movements that would be needed during the surgery (<a class="elsevierStyleCrossRef" href="#fig0005">Fig. 1</a>).</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><p id="par0065" class="elsevierStylePara elsevierViewall">The ankle arthroscopy was carried out using the classic anteromedial and anterolateral portals. No accessory portals were needed in any of the cases. The associated lesions, such as the peroneal tendons, posterior ankle pinching syndrome or osteochondral lesions (OCL), were surgically treated during the same surgical intervention.</p><p id="par0070" class="elsevierStylePara elsevierViewall">The cases of varus misalignment of the hindfoot were also treated in the same surgical intervention, associating an osteotomy of lateral calcaneus sliding, before the arthroscopy was performed.</p><p id="par0075" class="elsevierStylePara elsevierViewall">The anterior chamber was arthroscopically explored completely, with treatment of the associated lesions. The ATFL was then repaired under direct vision. The first step was the insertion of the ATFL in the fibula; to do so, the bony landmark was debrided through the anterolateral portal (<a class="elsevierStyleCrossRef" href="#fig0010">Fig. 2</a>). The remainder of the ATFL was pierced, from lateral to medial, with a Micro SutureLasso (Arthrex, Naples, FL, USA) (<a class="elsevierStyleCrossRef" href="#fig0015">Fig. 3</a>). The fiberwire was passed and, through it, a double 2/0 high-resistance suture. All these surgical steps were carried out through the anterolateral portal, with the optics located in the anteromedial portal. The same manoeuvre was then repeated with a second suture point proximal to the previous one. In that way, the surgeon could pull on the rest of the ligament to ascertain the quality of the tissue to be repaired. The drill guide was then inserted through the anterolateral portal and placed in the bony landmark of the ATFL, just distal to the insertion of the distal anterior inferior tibiofibular ligament (DAITFL). The 2.0-mm drill was directed from anterior to posterior, parallel to the plantar plane and to the lateral aspect. Next, the 2 holes were drilled, vertically in the bony landmark (<a class="elsevierStyleCrossRef" href="#fig0020">Fig. 4</a>A). After that, the most distal suture point was passed through a 2.5-mm knotless Bio-PushLock anchor (Arthrex, Naples, FL, USA) and introduced in the first hole (<a class="elsevierStyleCrossRef" href="#fig0020">Fig. 4</a>B). During the implantation of the Bio-PushLock anchor, it was important to maintain a fixed foot position, in a slight dorsal flexion of 5° and eversion of 5°–10°. The same process was repeated with the second suture point (the most proximal). We prefer to use 2 implants because they permit greater surface contact of the ATFL with the fibular bony landmark, as well as better distribution of the tensions, from a biomechanical point of view (<a class="elsevierStyleCrossRef" href="#fig0020">Fig. 4</a>C).</p><elsevierMultimedia ident="fig0010"></elsevierMultimedia><elsevierMultimedia ident="fig0015"></elsevierMultimedia><elsevierMultimedia ident="fig0020"></elsevierMultimedia><p id="par0080" class="elsevierStylePara elsevierViewall">Following proper postoperative protocol was important. Following the intervention, the ankle had to be immobilised with an orthopaedic splint, having the ankle in neutral position (90°) and slight eversion (10°), for 3 weeks. After that, it was replaced with a Walker-type orthosis (DonJoy, Surrey, UK). From 1 month postoperative, the patient began with progressive partial load, using 2 crutches based on tolerance, and the patient started a rehabilitation programme. If treatment of OCL was required, the patient remained off the foot for a period of 4–6 weeks. The patients who underwent calcaneus osteotomy received the same postoperative protocols indicated previously.</p><p id="par0085" class="elsevierStylePara elsevierViewall">From 8 weeks postoperative, the patients began to carry out specific sport activities that did not involve physical contact (swimming and static or elliptical cycling), beginning continuous running at 10–12 weeks. The patients could commence their usual sport activities again in a progressive and controlled manner after some 4 and 6 months.</p></span></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0090">Results</span><p id="par0090" class="elsevierStylePara elsevierViewall">A total of 21 patients with chronic ankle instability were surgically treated in our hospital, with arthroscopic anatomical repair of the ATFL being performed in all of the cases.</p><p id="par0095" class="elsevierStylePara elsevierViewall">In 4 patients (19%), physical examination yielded the diagnosis of a varus deformity of the hindfoot associated with lateral ankle instability. This deformity was treated in the same intervention, carrying out an inverse Koutsogiannis osteotomy.<a class="elsevierStyleCrossRef" href="#bib0235"><span class="elsevierStyleSup">19</span></a></p><p id="par0100" class="elsevierStylePara elsevierViewall">As for the X-ray results, the various projections used confirmed varus misalignment of the hindfoot in 4 patients and diagnosed posterior impingement of the joint in 3 patients.</p><p id="par0105" class="elsevierStylePara elsevierViewall">An ATFL lesion was the conclusion in 100% of the MRI reports. With respect to the associated lesions found, the results were as follows:<ul class="elsevierStyleList" id="lis0005"><li class="elsevierStyleListItem" id="lsti0005"><span class="elsevierStyleLabel">-</span><p id="par0110" class="elsevierStylePara elsevierViewall">In 6 cases (28.57%), there was an OCL associated, which was later confirmed at the time of the associated OCL arthroscopy in all of them.</p></li><li class="elsevierStyleListItem" id="lsti0010"><span class="elsevierStyleLabel">-</span><p id="par0115" class="elsevierStylePara elsevierViewall">In 3 cases (9.52%), there was a posterior impingement of the joint, which was confirmed with the arthroscopy.</p></li><li class="elsevierStyleListItem" id="lsti0015"><span class="elsevierStyleLabel">-</span><p id="par0120" class="elsevierStylePara elsevierViewall">The finding most often associated with ATFL rupture in the MRI was the partial rupture of the peroneus brevis tendon, found in 9 patients (42.86%). However, in the intervention, it was seen that in 6 of the patients there was no type of associated pathology. In 1 case, the only associated finding was a posterior ankle impingement (also seen in the MRI); in 2 patients, peroneal tendon lesions were indeed found: 1 case of intrasheath luxation and 1 case of partial rupture of the peroneus brevis tendon.</p></li><li class="elsevierStyleListItem" id="lsti0020"><span class="elsevierStyleLabel">-</span><p id="par0125" class="elsevierStylePara elsevierViewall">Lastly, in 4 patients (19.04%), the MRI revealed the ATFL lesion associated with a complete rupture of the peroneus brevis tendon. In those cases, there was no good correlation with the intraoperative findings either. During the intervention, 2 cases of partial peroneus brevis tendon, 1 case of intrasheath luxation and 1 case of isolated tenosynovitis were found.</p></li></ul></p><p id="par0130" class="elsevierStylePara elsevierViewall">As for the intraoperative results, intra-articular lesions were diagnosed in 15 patients (71.4%). A total of 6 patients presented OCL, posterior impingement of the ankle was found in 3 patients and, in 6 patients, some type of pathology of the peroneal tendons was found. All of these lesions were surgically approached in the same surgical intervention (<a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>).<a class="elsevierStyleCrossRef" href="#bib0160"><span class="elsevierStyleSup">4</span></a></p><elsevierMultimedia ident="tbl0005"></elsevierMultimedia><p id="par0135" class="elsevierStylePara elsevierViewall">Of the 6 cases with OCL (28.5%), 4 cases were grade IIIB and 2 cases were grade IV of the International Cartilage Repair Society (ICRS)<a class="elsevierStyleCrossRef" href="#bib0240"><span class="elsevierStyleSup">20</span></a> classification. All the cases were treated with bone marrow stimulation techniques, which consisted of debridement of the lesion and microperforations.</p><p id="par0140" class="elsevierStylePara elsevierViewall">The 3 cases with posterior ankle impingement (14.2%) were treated by osteophyte resection, by means of the posterior endoscopic portals described by Van Dijk.<a class="elsevierStyleCrossRef" href="#bib0245"><span class="elsevierStyleSup">21</span></a> In these cases, it was necessary to reposition the patient in the prone position.</p><p id="par0145" class="elsevierStylePara elsevierViewall">The 6 patients with pathology of the peroneal tendons (26.5%) required tendoscopic surgery: in 1 case, the finding was isolated tenosynovitis; in 3 cases, partial rupture of the peroneus brevis tendon was found and 2 cases presented intrasheath luxation. The 4 cases with tenosynovitis and partial ruptures were treated using tendoscopic synovectomy, while the 2 patients with intrasheath luxation required tendoscopic deepening of the peroneal sulcus.<a class="elsevierStyleCrossRef" href="#bib0250"><span class="elsevierStyleSup">22</span></a></p><p id="par0150" class="elsevierStylePara elsevierViewall">A functional-clinical review was carried out, using the AOFAS scale. The mean preoperative AOFAS was 66.12 points (range: 60–71), while the postoperative AOFAS increased to a mean of 96.95 points (range: 90–100). All of the patients could take up their previous sport activities again in a mean of 21.5 weeks (range: 17–28).</p><p id="par0155" class="elsevierStylePara elsevierViewall">We found complications in 3 patients (14%). The first patient presented joint rigidity, which required arthroscopic debridement and immediate rehabilitation; the final result was good. Another patient presented infection of the arthroscopic portals, with superficial cellulitis; this patient was treated with oral antibiotics and evolved satisfactorily. Lastly, there was 1 case of neuropathy of the superficial peroneal nerve, which also evolved favourably, without any current symptoms.</p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0095">Discussion</span><p id="par0160" class="elsevierStylePara elsevierViewall">Sprained ankles are the most frequent cause of injury to the lateral ankle ligament complex. In the majority of the cases, they are treated as a banal pathology. However, the percentage of patients that develop chronic ankle instability after this injury ranges between 20% and 40%.<a class="elsevierStyleCrossRefs" href="#bib0155"><span class="elsevierStyleSup">3,4</span></a></p><p id="par0165" class="elsevierStylePara elsevierViewall">With these patients, it is essential to take an appropriate clinical history and physical examination. The physical exam should focus on ruling out factors predisposing for chronic ankle instability, such as the coexistence of varus hindfoot or fixed plantar flexion of the first metatarsal. These deformities should be treated surgically, during the same operation, given that they are the fundamental reason for failure of surgical treatment of chronic ankle instability.<a class="elsevierStyleCrossRef" href="#bib0255"><span class="elsevierStyleSup">23</span></a> Likewise, complementary imaging tests should be performed. These are very useful for ruling out associated intra-articular pathologies, such as OCL, fractures, peroneal tendon pathology and joint impingements.</p><p id="par0170" class="elsevierStylePara elsevierViewall">Kim et al.<a class="elsevierStyleCrossRef" href="#bib0260"><span class="elsevierStyleSup">24</span></a> analysed the validity of MRI images in the diagnosis of ATFL lesions and the relationship with arthroscopic findings. As indicated in their article, they conclude MRI sensitivity and positive predictive value for the diagnosis of ATFL lesions are very high. In our study, there is also excellent correlation between the MRI reports and the arthroscopic findings, with respect to the diagnosis of ATFL lesions; the ATFL lesion was reported in 100% of the cases.</p><p id="par0175" class="elsevierStylePara elsevierViewall">However, we have not found any studies published that specifically analyse the correlation of radiological and arthroscopic findings with respect to associated lesions. Small size lesions are difficult to diagnose using MRI; this is the reason why many authors recommend that arthroscopic examination of the ankle should routinely be performed before treatment of chronic ankle instability.<a class="elsevierStyleCrossRefs" href="#bib0265"><span class="elsevierStyleSup">25,26</span></a></p><p id="par0180" class="elsevierStylePara elsevierViewall">Lee et al.<a class="elsevierStyleCrossRef" href="#bib0160"><span class="elsevierStyleSup">4</span></a> studied the associated intra-articular lesions in patients with chronic ankle instability. They found 100% anterolateral synovitis, 30% superficial lesions of the talus cartilage with 7% of OCL, 14% anterolateral articular impingement, 14% with anterior osteophyte in the distal tibia and 11% with presence of free joint bodies. Hintermann et al.<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">25</span></a> described damage to the joint cartilage in up to 66% of the cases and Ferkel and Chams<a class="elsevierStyleCrossRef" href="#bib0270"><span class="elsevierStyleSup">26</span></a> found intra-articular lesions even in 95%. These finding agree with those of our series, in which we found associated lesions in up to 71% of the cases.</p><p id="par0185" class="elsevierStylePara elsevierViewall">Arthroscopic ankle surgery is currently a technique in constant evolution. Arthroscopic treatment of patients with chronic ankle instability makes diagnosis and treatment of all these associated intra-articular pathologies possible. Hawkins<a class="elsevierStyleCrossRef" href="#bib0275"><span class="elsevierStyleSup">27</span></a> was the first to describe, in 1987, ankle arthroscopy as a possible treatment for chronic ankle instability. More recently, other authors have described different arthroscopic techniques for this pathology, with excellent results.<a class="elsevierStyleCrossRefs" href="#bib0150"><span class="elsevierStyleSup">2,13,14</span></a></p><p id="par0190" class="elsevierStylePara elsevierViewall">The first surgical technique, described by Hawkins,<a class="elsevierStyleCrossRef" href="#bib0275"><span class="elsevierStyleSup">27</span></a> used staples to re-anchor the ATFL. Since then, the evolution up to the most modern surgical techniques has been constant. In 2013, Cottom and Rigby<a class="elsevierStyleCrossRef" href="#bib0205"><span class="elsevierStyleSup">13</span></a> described an arthroscopic technique using osseous spears implanted in the ATFL landmark and a mini-open, needed to introduce the suture knots. Vega et al.<a class="elsevierStyleCrossRef" href="#bib0150"><span class="elsevierStyleSup">2</span></a> described their arthroscopic technique, using implants without knots, but with the need for a complementary portal in the most anterior part of the peroneal malleolus. Our technique allows arthroscopic ATFL repair using implants without knots and without the need to make complementary portals. Consequently, we avoid the complications that stem from prominence of the suture knots.</p><p id="par0195" class="elsevierStylePara elsevierViewall">Other complications described in the arthroscopic techniques are neuritis of the superficial peroneal nerve and of the sural nerve.<a class="elsevierStyleCrossRef" href="#bib0280"><span class="elsevierStyleSup">28</span></a> It is a good idea to mark the subcutaneous path of the superficial peroneal nerve before beginning the ankle arthroscopy. In addition, it should be taken into account that this nerve can move laterally with ankle dorsiflexion; when a position in plantar flexion and inversion is changed to one in 5° dorsiflexion, the nerve will displace laterally up to a mean of 3.6<span class="elsevierStyleHsp" style=""></span>mm. Damage to the sural nerve is much lower with all-inside arthroscopic techniques, given that no cutaneous incisions are required.</p><p id="par0200" class="elsevierStylePara elsevierViewall">It is important to emphasise that this technique is aimed at isolated ATFL repair, without involving any possible lesions of the calcaneofibular ligament (CFL), which may be injured in up to 15% of the cases. In 2011, Lee et al.<a class="elsevierStyleCrossRef" href="#bib0160"><span class="elsevierStyleSup">4</span></a> published a study on the long-term results (10.6 years of mean follow-up) of the modified Broström technique, with no associated procedure in the CFL. They obtained a mean AOFAS score of 91 points and observed integrity of the repaired ATFL, with slight anterior translation (6.9<span class="elsevierStyleHsp" style=""></span>mm against 6.1<span class="elsevierStyleHsp" style=""></span>mm in the contralateral). The measurements of CFL function were also satisfactory, with a 3° talar tilt in the ankle treated, against 2.5° in the contralateral.</p><p id="par0205" class="elsevierStylePara elsevierViewall">As possible limitations of our study, we should point out the relatively small number of cases studied, as well as the retrospective nature, with the lack of a control group. Another limitation of the study is that the preoperative ankle instability is not quantified, accepting the clinical diagnosis with radiographic support. This is a common limitation for the majority of the studies on chronic ankle instability. Prospective, comparative and randomised studies will be needed to be able to state that arthroscopic surgery is superior to open surgery.</p></span><span id="sec0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0100">Conclusions</span><p id="par0210" class="elsevierStylePara elsevierViewall">Arthroscopic surgery is fundamental in confirming the existence of intra-articular lesions associated with chronic ankle instability and is essential if treatment for such lesions is necessary. Among its advantages over open surgery worth pointing out are its lower aggressiveness, less associated morbidity and its better aesthetic results. Sin embargo, its superiority over open surgery is yet to be demonstrated.</p><p id="par0215" class="elsevierStylePara elsevierViewall">Anatomical repair by means of the all-inside technique presents excellent functional-clinical results, with early patient reincorporation to sport activities and a low index of reinterventions and complications.</p></span><span id="sec0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0105">Level of evidence</span><p id="par0220" class="elsevierStylePara elsevierViewall">IV.</p></span><span id="sec0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0110">Ethical disclosures</span><span id="sec0055" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0115">Protection of people and animals</span><p id="par0225" class="elsevierStylePara elsevierViewall">The authors declare that no experiments on human beings or on animals have been performed for this research.</p></span><span id="sec0060" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0120">Confidentiality of data</span><p id="par0230" class="elsevierStylePara elsevierViewall">The authors declare that no patient data appear in this article.</p></span><span id="sec0065" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0125">Right to privacy and informed consent</span><p id="par0235" class="elsevierStylePara elsevierViewall">The authors declare that no patient data appear in this article.</p></span></span><span id="sec0070" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0130">Conflict of interests</span><p id="par0240" class="elsevierStylePara elsevierViewall">The authors have no conflicts of interest to declare.</p></span></span>" "textoCompletoSecciones" => array:1 [ "secciones" => array:13 [ 0 => array:3 [ "identificador" => "xres824395" "titulo" => "Abstract" "secciones" => array:4 [ 0 => array:2 [ "identificador" => "abst0005" "titulo" => "Introduction" ] 1 => array:2 [ "identificador" => "abst0010" "titulo" => "Material and method" ] 2 => array:2 [ "identificador" => "abst0015" "titulo" => "Results" ] 3 => array:2 [ "identificador" => "abst0020" "titulo" => "Conclusions" ] ] ] 1 => array:2 [ "identificador" => "xpalclavsec820905" "titulo" => "Keywords" ] 2 => array:3 [ "identificador" => "xres824396" "titulo" => "Resumen" "secciones" => array:4 [ 0 => array:2 [ "identificador" => "abst0025" "titulo" => "Introducción" ] 1 => array:2 [ "identificador" => "abst0030" "titulo" => "Material y método" ] 2 => array:2 [ "identificador" => "abst0035" "titulo" => "Resultados" ] 3 => array:2 [ "identificador" => "abst0040" "titulo" => "Conclusiones" ] ] ] 3 => array:2 [ "identificador" => "xpalclavsec820904" "titulo" => "Palabras clave" ] 4 => array:2 [ "identificador" => "sec0005" "titulo" => "Introduction" ] 5 => array:3 [ "identificador" => "sec0010" "titulo" => "Material and method" "secciones" => array:3 [ 0 => array:2 [ "identificador" => "sec0015" "titulo" => "Study population" ] 1 => array:2 [ "identificador" => "sec0020" "titulo" => "Criteria of inclusion" ] 2 => array:2 [ "identificador" => "sec0025" "titulo" => "Surgical technique" ] ] ] 6 => array:2 [ "identificador" => "sec0030" "titulo" => "Results" ] 7 => array:2 [ "identificador" => "sec0035" "titulo" => "Discussion" ] 8 => array:2 [ "identificador" => "sec0040" "titulo" => "Conclusions" ] 9 => array:2 [ "identificador" => "sec0045" "titulo" => "Level of evidence" ] 10 => array:3 [ "identificador" => "sec0050" "titulo" => "Ethical disclosures" "secciones" => array:3 [ 0 => array:2 [ "identificador" => "sec0055" "titulo" => "Protection of people and animals" ] 1 => array:2 [ "identificador" => "sec0060" "titulo" => "Confidentiality of data" ] 2 => array:2 [ "identificador" => "sec0065" "titulo" => "Right to privacy and informed consent" ] ] ] 11 => array:2 [ "identificador" => "sec0070" "titulo" => "Conflict of interests" ] 12 => array:1 [ "titulo" => "References" ] ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "fechaRecibido" => "2016-03-05" "fechaAceptado" => "2016-10-18" "PalabrasClave" => array:2 [ "en" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Keywords" "identificador" => "xpalclavsec820905" "palabras" => array:3 [ 0 => "Ankle instability" 1 => "Ankle sprain" 2 => "Ankle arthroscopy" ] ] ] "es" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Palabras clave" "identificador" => "xpalclavsec820904" "palabras" => array:3 [ 0 => "Inestabilidad de tobillo" 1 => "Esguince de tobillo" 2 => "Artroscopia de tobillo" ] ] ] ] "tieneResumen" => true "resumen" => array:2 [ "en" => array:3 [ "titulo" => "Abstract" "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Introduction</span><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Ankle sprains are one of the most common injuries. Despite appropriate conservative treatment, approximately 20–40% of patients continue to have chronic ankle instability and pain. In 75–80% of cases there is an isolated rupture of the anterior talofibular ligament.</p></span> <span id="abst0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Material and method</span><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">A retrospective observational study was conducted on 21 patients surgically treated for chronic ankle instability by means of an arthroscopic anatomical repair, between May 2012 and January 2013.</p><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">There were 15 men and 6 women, with a mean age of 30.43 years (range 18–48). The mean follow-up was 29 months (range 25–33). All patients were treated by arthroscopic anatomical repair of anterior talofibular ligament.</p><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Four (19%) patients were found to have varus hindfoot deformity. Associated injuries were present in 13 (62%) patients. There were 6 cases of osteochondral lesions, 3 cases of posterior ankle impingement syndrome, and 6 cases of peroneal pathology. All these injuries were surgically treated in the same surgical time.</p></span> <span id="abst0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Results</span><p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">A clinical-functional study was performed using the American Orthopaedic Foot and Ankle Society (AOFAS) score. The mean score before surgery was 66.12 (range 60–71), and after surgery it increased up to a mean of 96.95 (range 90–100). All patients were able to return to their previous sport activity within a mean of 21.5 weeks (range 17–28). Complications were found in 3 (14%) patients.</p></span> <span id="abst0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Conclusions</span><p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">Arthroscopic anatomical ligament repair technique has excellent clinical-functional results with a low percentage of complications, and enables patients to return to their previous sport activity within a short period of time.</p></span>" "secciones" => array:4 [ 0 => array:2 [ "identificador" => "abst0005" "titulo" => "Introduction" ] 1 => array:2 [ "identificador" => "abst0010" "titulo" => "Material and method" ] 2 => array:2 [ "identificador" => "abst0015" "titulo" => "Results" ] 3 => array:2 [ "identificador" => "abst0020" "titulo" => "Conclusions" ] ] ] "es" => array:3 [ "titulo" => "Resumen" "resumen" => "<span id="abst0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Introducción</span><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">Los esguinces de tobillo son una de las patologías traumatológicas más frecuentes. A pesar de un tratamiento conservador adecuado, este fracasa en el 20-40% de los casos. Estos pacientes suelen desarrollar una inestabilidad crónica de tobillo. En el 75-80% de las ocasiones existe una rotura aislada del ligamento talofibular anterior.</p></span> <span id="abst0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">Material y método</span><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">Estudio retrospectivo observacional de 21 pacientes intervenidos quirúrgicamente mediante técnica de reparación anatómica artroscópica, por inestabilidad lateral crónica de tobillo, entre mayo de 2012 y enero de 2013. Se realizó un seguimiento medio de 29 meses (rango de 25-33). La distribución por sexos fue de 15 hombres y 6 mujeres; la edad media fue de 30,43 años (rango de 18-48).</p><p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">En 4 pacientes (19%), se diagnosticó una deformidad en varo del retropié asociada. En 15 pacientes (71,4%), se diagnosticaron lesiones intraarticulares: 6 pacientes presentaron lesiones osteocondrales (LOC) talares, 3 presentaban un pinzamiento posterior de tobillo y 6 pacientes presentaban distintas patologías de los tendones peroneos. Todas estas lesiones fueron abordadas quirúrgicamente en el mismo acto quirúrgico.</p></span> <span id="abst0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Resultados</span><p id="spar0050" class="elsevierStyleSimplePara elsevierViewall">Se llevó a cabo una revisión clínico-funcional, utilizando la escala <span class="elsevierStyleItalic">American Orthopaedic Foot and Ankle Society</span> (AOFAS). La media preoperatoria fue de 66,12 puntos (rango de 60-71) y la postoperatoria se incrementó hasta una media de 96,95 puntos (rango de 90-100). Todos los pacientes pudieron retomar sus actividades deportivas previas en una media de 21,5 semanas (rango de 17-28). Encontramos complicaciones en 3 pacientes (14%).</p></span> <span id="abst0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0050">Conclusiones</span><p id="spar0055" class="elsevierStyleSimplePara elsevierViewall">La reparación anatómica del ligamento talofibular anterior mediante esta técnica presenta unos resultados clínico-funcionales excelentes, con una temprana reincorporación del paciente a sus actividades deportivas y un bajo índice de reintervenciones y complicaciones.</p></span>" "secciones" => array:4 [ 0 => array:2 [ "identificador" => "abst0025" "titulo" => "Introducción" ] 1 => array:2 [ "identificador" => "abst0030" "titulo" => "Material y método" ] 2 => array:2 [ "identificador" => "abst0035" "titulo" => "Resultados" ] 3 => array:2 [ "identificador" => "abst0040" "titulo" => "Conclusiones" ] ] ] ] "NotaPie" => array:1 [ 0 => array:2 [ "etiqueta" => "☆" "nota" => "<p class="elsevierStyleNotepara" id="npar0005">Please cite this article as: Arroyo-Hernández M, Mellado-Romero M, Páramo-Díaz P, García-Lamas L, Vilà-Rico J. Inestabilidad crónica de tobillo: reparación anatómica artroscópica. Rev Esp Cir Ortop Traumatol. 2017;61:104–110.</p>" ] ] "multimedia" => array:5 [ 0 => array:7 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 738 "Ancho" => 990 "Tamanyo" => 109598 ] ] "descripcion" => array:1 [ "en" => "<p id="spar0060" class="elsevierStyleSimplePara elsevierViewall">The limb affected is placed with a flexion of the hip and knee of approximately 30° and support for the proximal third of the leg, so that the ankle is parallel to the floor and free of support.</p>" ] ] 1 => array:7 [ "identificador" => "fig0010" "etiqueta" => "Figure 2" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr2.jpeg" "Alto" => 1078 "Ancho" => 1417 "Tamanyo" => 170051 ] ] "descripcion" => array:1 [ "en" => "<p id="spar0065" class="elsevierStyleSimplePara elsevierViewall">Preparation of ATFL insertion in the fibula; the bony landmark is debrided through the anterolateral portal.</p>" ] ] 2 => array:7 [ "identificador" => "fig0015" "etiqueta" => "Figure 3" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr3.jpeg" "Alto" => 1030 "Ancho" => 1416 "Tamanyo" => 163295 ] ] "descripcion" => array:1 [ "en" => "<p id="spar0070" class="elsevierStyleSimplePara elsevierViewall">The remainder of the ATFL is pierced, from lateral to medial, with a Micro Suture Lasso (Arthrex, Naples, FL, USA).</p>" ] ] 3 => array:7 [ "identificador" => "fig0020" "etiqueta" => "Figure 4" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr4.jpeg" "Alto" => 3035 "Ancho" => 1417 "Tamanyo" => 448743 ] ] "descripcion" => array:1 [ "en" => "<p id="spar0075" class="elsevierStyleSimplePara elsevierViewall">(1) Drilling of two openings, located vertically in the bony landmark; (2) the most distal suture point is passed through a 2.5-mm Biopush Lock knotless anchor (Arthrex, Naples, FL, USA) and inserted into the first hole; (3) 2 implants are used, because they allow a greater surface contact of the ATFL with the fibular bony landmark, as well as better tension distribution, from the biomechanical point of view.</p>" ] ] 4 => array:8 [ "identificador" => "tbl0005" "etiqueta" => "Table 1" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at1" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:2 [ "leyenda" => "<p id="spar0085" class="elsevierStyleSimplePara elsevierViewall">AL: anterolateral; AOFAS: American Orthopaedic Foot and Ankle Society; ATFL: anterior talofibular ligament; BMS: bone marrow stimulation techniques; CO: calcaneal osteotomy; F: female; M: male; MRI 1: ATFL lesion<span class="elsevierStyleHsp" style=""></span>+<span class="elsevierStyleHsp" style=""></span>OCL; MRI 2: ATFL lesion<span class="elsevierStyleHsp" style=""></span>+<span class="elsevierStyleHsp" style=""></span>posterior articular impingement; MRI 3: ATFL lesion<span class="elsevierStyleHsp" style=""></span>+<span class="elsevierStyleHsp" style=""></span>partial PB rupture; MRI 4: ATFL lesion<span class="elsevierStyleHsp" style=""></span>+<span class="elsevierStyleHsp" style=""></span>complete PB rupture; OCL: osteochondral lesions; P: posterior; PB: peroneus brevis tendon.</p>" "tablatextoimagen" => array:1 [ 0 => array:2 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">No. \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Sex \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Age \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">MRI \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">AL box \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">P box \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Arthroscopic findings and associated lesions \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Postoperative AOFAS score \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Associated procedures \t\t\t\t\t\t\n \t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">1 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">28 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">1 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">– \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">OCL III<span class="elsevierStyleHsp" style=""></span>+<span class="elsevierStyleHsp" style=""></span>varus hindfoot \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">100 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">BMS<span class="elsevierStyleHsp" style=""></span>+<span class="elsevierStyleHsp" style=""></span>CO \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">23 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">3 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">– \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Intrasheath luxation \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">100 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Sulcus deepening \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">3 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">38 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">– \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Posterior ankle impingement \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">97 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Osteophyte resection \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">4 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">47 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">1 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">– \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">OCL IV \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">90 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">BMS \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">5 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">31 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">3 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">– \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Varus hindfoot \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">96 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">CO \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">6 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">33 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">3 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">100 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">7 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">40 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">1 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">++ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">– \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">OCL III \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">96 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">BMS \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">8 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">27 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">2–3 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">++ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">– \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Posterior ankle impingement \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">100 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Osteophyte resection \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">9 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">29 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">3 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">– \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Partial PB rupture \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">100 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Tendoscopy \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">10 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">35 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">3 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">– \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">90 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">11 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">22 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">1 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">– \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">OCL III<span class="elsevierStyleHsp" style=""></span>+<span class="elsevierStyleHsp" style=""></span>varus hindfoot \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">100 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">BMS<span class="elsevierStyleHsp" style=""></span>+<span class="elsevierStyleHsp" style=""></span>CO \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">12 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">19 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">– \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Posterior ankle impingement \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">96 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Osteophyte resection \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">13 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">18 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">3 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">++ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">94 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">14 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">22 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">4 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">– \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Intrasheath luxation \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">100 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Sulcus deepening \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">15 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">29 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">3 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">– \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">100 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">16 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">38 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">4 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">– \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Partial PB rupture<span class="elsevierStyleHsp" style=""></span>+<span class="elsevierStyleHsp" style=""></span>varus hindfoot \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">94 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Tendoscopy<span class="elsevierStyleHsp" style=""></span>+<span class="elsevierStyleHsp" style=""></span>CO \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">17 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">48 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">1 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">++ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">– \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">OCL III \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">96 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">BMS \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">18 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">27 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">3 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">97 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">19 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">F \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">29 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">4 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">– \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Tenosynovitis \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">100 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Tendoscopy \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">20 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">M \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">20 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">1 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">+ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">– \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">OCL IV \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">94 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">BMS \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="char" valign="top">21 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">F \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">36 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">4 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">++ \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">– \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Partial PB rupture \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">96 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">Tendoscopy \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] "imagenFichero" => array:1 [ 0 => "xTab1386073.png" ] ] ] ] "descripcion" => array:1 [ "en" => "<p id="spar0080" class="elsevierStyleSimplePara elsevierViewall">Description of the population studied.</p>" ] ] ] "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0005" "bibliografiaReferencia" => array:28 [ 0 => array:3 [ "identificador" => "bib0145" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Chronic ankle instability" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:1 [ 0 => "J.B. 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| Year/Month | Html | Total | |
|---|---|---|---|
| 2024 November | 9 | 1 | 10 |
| 2024 October | 37 | 0 | 37 |
| 2024 September | 41 | 4 | 45 |
| 2024 August | 25 | 9 | 34 |
| 2024 July | 19 | 4 | 23 |
| 2024 June | 23 | 5 | 28 |
| 2024 May | 49 | 2 | 51 |
| 2024 April | 32 | 10 | 42 |
| 2024 March | 39 | 9 | 48 |
| 2024 February | 49 | 3 | 52 |
| 2024 January | 69 | 7 | 76 |
| 2023 December | 58 | 10 | 68 |
| 2023 November | 54 | 18 | 72 |
| 2023 October | 48 | 7 | 55 |
| 2023 September | 27 | 3 | 30 |
| 2023 August | 19 | 6 | 25 |
| 2023 July | 25 | 8 | 33 |
| 2023 June | 56 | 4 | 60 |
| 2023 May | 55 | 11 | 66 |
| 2023 April | 43 | 4 | 47 |
| 2023 March | 42 | 4 | 46 |
| 2023 February | 23 | 7 | 30 |
| 2023 January | 30 | 5 | 35 |
| 2022 December | 19 | 5 | 24 |
| 2022 November | 32 | 4 | 36 |
| 2022 October | 25 | 11 | 36 |
| 2022 September | 23 | 8 | 31 |
| 2022 August | 32 | 8 | 40 |
| 2022 July | 18 | 9 | 27 |
| 2022 June | 31 | 12 | 43 |
| 2022 May | 43 | 17 | 60 |
| 2022 April | 28 | 16 | 44 |
| 2022 March | 39 | 20 | 59 |
| 2022 February | 19 | 9 | 28 |
| 2022 January | 41 | 21 | 62 |
| 2021 December | 83 | 20 | 103 |
| 2021 November | 38 | 15 | 53 |
| 2021 October | 48 | 18 | 66 |
| 2021 September | 30 | 14 | 44 |
| 2021 August | 25 | 7 | 32 |
| 2021 July | 24 | 11 | 35 |
| 2021 June | 25 | 9 | 34 |
| 2021 May | 31 | 7 | 38 |
| 2021 April | 63 | 13 | 76 |
| 2021 March | 16 | 16 | 32 |
| 2021 February | 24 | 7 | 31 |
| 2021 January | 15 | 7 | 22 |
| 2020 December | 1 | 1 | 2 |
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