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Revista Española de Cirugía Ortopédica y Traumatología (English Edition)
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Inicio Revista Española de Cirugía Ortopédica y Traumatología (English Edition) Treatment of lateral recess stenosis by means of microendoscopic decompressive l...
Información de la revista
Vol. 53. Núm. 4.
Páginas 242-249 (julio - agosto 2009)
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Vol. 53. Núm. 4.
Páginas 242-249 (julio - agosto 2009)
Original papers
Acceso a texto completo
Treatment of lateral recess stenosis by means of microendoscopic decompressive laminotomy results at one year
Tratamiento de la estenosis del receso lateral mediante laminectomía microendoscópica: resultados a un año de evolución
Visitas
2584
M. Castro-Menéndeza,
Autor para correspondencia
, J.A. Bravo-Ricoyb, R. Casal-Moroc, M. Hernández-Blancoc, F.J. Jorge-Barreirod
a Department of Orthopedic and Trauma Surgery, Monforte de Lemos Hospital, Lugo, Spain
b Department of Preventive Medicine and Occupational Health, Monforte de Lemos Hospital, Lugo, Spain
c Department of Orthopedic and Trauma Surgery, Meixoeiro Hospital, Hospital Complex University of Vigo, Vigo, Spain
d Chair of Anatomy, University of Santiago de Compostela, Spain
Este artículo ha recibido
Información del artículo
Abstract
Purpose

To determine the efficacy of microendoscopic root decompression in lumbar lateral recess stenosis.

Materials and methods

Prospective longitudinal study of 60 patients diagnosed with lumbar canal stenosis and subjected to microendoscopic decompression by means of a METRx 18 mm tubular retractor following the METRx (Medtronic Sofamor Danek, Memphis, TN, U.S.A.) technique. Results were evaluated using the visual analog scale (VAS) for pain measurement, the Oswestry Disability Index (ODI), subjective patient satisfaction and McNab's modified score.

Results

Mean age was 54.5±10 years. Thirty-four patients (56.7%) were male and 26 (43.3%) female. The most frequently affected level was L5 (63.33%). Mean OR time was 85.17±18 minutes. Mean postoperative length of hospital stay was 4±1.2 days. Patient follow-up was 12 months. We obtained 66.6% good or excellent results with 68.3% of patients claiming to be satisfied with their outcome. Mean decrease on ODI at one year, as compared with the preoperative ODI score, was 34.3±26.2 points. Decrease on the VAS score was 6.2±2.6 points for the lower limbs and 1.6±1.8 points for the lumbar spine. All these magnitudes were statistically significant (p<0.05).

Conclusions

The data collected from the study indicate that microendoscopic decompressive laminotomy is a safe and effective technique for treating lumbar lateral recess stenosis, which should feature prominently among the surgeon's procedures of choice for minimally invasive spine surgery.

Keywords:
Canal stenosis
Minimally invasive surgery
Endoscopic techniques
Resumen
Objetivo

valorar la eficacia de la descompresión radicular de la estenosis del receso lateral lumbar por técnica microendoscópica.

Material y método

estudio longitudinal prospectivo de 60 pacientes diagnosticados de estenosis de canal lumbar e intervenidos mediante descompresión por vía microendoscópica usando un retractor tubular METRx de 18mm según la técnica METRx (Medtronic Sofamor Danek, Memphis, Estados Unidos). Se evalúan los resultados con la escala visual analógica del dolor (EVA), el índice de discapacidad de Oswestry (ODI), el grado subjetivo de satisfacción percibido por el paciente y la clasificación modificada de Macnab.

Resultados

la media7desviación estándar de edad es 54,5710 años, 34 (56,7%) son varones y 26 (43,3%), mujeres. El área más afectada es L5 (63,33%). La media de tiempo de la intervención quirúrgica fue 85,17718 min. La media de estancia hospitalaria postoperatoria fue 471,2 días. El tiempo de seguimiento de los pacientes fue de 12 meses. Obtuvimos un 66,6% de resultados buenos o excelentes; con una satisfacción subjetiva buena en el 68,3% de los pacientes. La disminución media del ODI al año con respecto al preoperatorio es de 34,3726,2 puntos, la de EVA de extremidades inferiores es de 6,272,6 puntos, y en la EVA lumbar, de 1,671,8 puntos, todas con significación estadística (po0,05).

Conclusiones

los datos recabados en nuestra experiencia nos indican que la laminectomía descompresiva microendoscópica es una técnica segura y efectiva para el tratamiento de la estenosis del receso lateral lumbar y una alternativa en las técnicas mínimamente invasivas de la columna.

Palabras clave:
Estenosis de canal
Cirugía mínimamente invasiva
Técnicas endoscópicas
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Copyright © 2009. Sociedad Española de Cirugía Ortopédica y Traumatología (SECOT). All rights reserved
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