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Inicio Revista Española de Medicina Nuclear e Imagen Molecular (English Edition) Radiosynoviorthesis with [90Y] Yttrium citrate in refractory synovitis of the kn...
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Original Article
Available online 18 September 2024
Radiosynoviorthesis with [90Y] Yttrium citrate in refractory synovitis of the knee: Experience of 2 reference hospitals
Radiosinoviortesis con [90Y] citrato de ytrio en la sinovitis refractaria de rodilla: experiencia de 2 hospitales de referencia
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I. Bolívar Roldána,
Corresponding author
isagranada1518@gmail.com

Corresponding author.
, Ana Moreno Ballesterosb, C. Martínez Chinchillac, A. Jiménez-Heffernanb, M.C. Calvo Moróna
a Unidad de Medicina Nuclear, Hospital Universitario Virgen Macarena, Sevilla, Spain
b Unidad de Medicina Nuclear, Hospital Universitario Juan Ramón Jiménez, Huelva, Spain
c Unidad de Hematología, Hospital General Universitario de Ciudad Real, Ciudad Real, Spain
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Table 1. Radioisotopes used for performing synoviorthesis.
Table 2. Description of the patients included.
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Abstract
Introduction

To describe the therapeutic efficacy of radiosynoviorthesis with [90Y]Yttrium citrate (90Y), in patients with chronic knee synovitis refractory to systemic treatments and/or infiltrations, correlating the results with the different etiologies and degenerative changes that they showed, in order to optimize the indication of the technique.

Material and methods

Observational retrospective study with 32 patients (22 men and 10 women) and 34 knees, with refractory chronic knee synovitis, who underwent radiosynoviorthesis between January 2013 and December 2022. Its efficacy was described and analyzed by the subjective improvement referred by the patients and its relationship with the existing etiologies and radiological degenerative changes, expressed by the Kellgren-Lawrence (K-L) scale.

Results

A statistically significant subjective improvement was observed in 70.6% of the cases (p < 0.001). There were 92.3% of cases with absent, doubtful or mild degenerative changes (K-L 0-2) who improved, while only 50% with moderate or severe changes (K-L 3-4) improved, showing statistically significant differences (p = 0.03). Among patients with chronic inflammatory origin of synovitis (spondyloarthropathies and rheumatoid arthritis), 80% improved, while in those with osteoarthritis (degenerative) origin, only 25% improved with statistically significant differences (p = 0.006).

Conclusions

Radiosynoviorthesis with 90Y is an effective treatment in patients with knee refractory chronic synovitis, especially in the presence of mil degenerative joint changes and chronic inflammatory origin. We must ensure the appropiate selection of patients according to these criteria.

Keywords:
Radiosynovectomy
Synovitis
Knee joint
Yttrium-90
Radiosynoviorthesis
Resumen
Objetivo

Describir la eficacia terapéutica de la radiosinoviortesis con [90Y]citrato de ytrio (90Y), en pacientes con sinovitis crónica de rodilla refractaria a tratamientos sistémicos y/o infiltraciones, correlacionando los resultados con las distintas etiologías y cambios degenerativos presentes, con la intención de optimizar la indicación de la técnica.

Material y métodos

Estudio retrospectivo observacional con 32 pacientes (22 hombres y 10 mujeres) y 34 rodillas, con sinovitis crónica de rodilla refractaria, a los que se les realizó la radiosinoviortesis entre enero de 2013 y diciembre de 2022. Se describió y analizó su eficacia mediante la mejoría subjetiva expresada por los pacientes y su relación con las etiologías y cambios radiológicos degenerativos presentes, expresados éstos mediante la escala de Kellgren-Lawrence (K–L).

Resultados

Se observó una mejoría subjetiva estadísticamente significativa del 70,6% de los casos (p < 0,001). El 92,3% de los que presentaban cambios degenerativos ausentes, dudosos o leves (K–L 0–2) mejoraron, mientras que solo lo hicieron el 50% con cambios moderados o severos (K–L 3–4), mostrando diferencias estadísticamente significativas (p = 0,03). De los pacientes con origen inflamatorio crónico de la sinovitis (espondiloartropatías y artritis reumatoide), el 80% mejoró subjetivamente mientras que en los que el origen era la osteoartritis (degenerativo), solo mejoraron el 25% con diferencias estadísticamente significativas (p = 0006).

Conclusión

La radiosinoviortesis con 90Y es un tratamiento eficaz en pacientes con sinovitis crónica refractaria de rodilla, especialmente en presencia de cambios articulares degenerativos leves y origen inflamatorio crónico. Debemos procurar la selección adecuada de los pacientes atendiendo a estos criterios.

Palabras clave:
Radiosinovectomía
Sinovitis
Articulación de rodilla
Ytrio-90
Radiosinoviortesis

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