RESUMEN
Carpal tunnel syndrome is treated very successfully by surgical release of the flexor retinaculum. However, in some patients, all symptoms are not resolved. Weakness in grip strength and pain in the thenar and hypothenar areas corresponding to the end of the transverse ligament after its complete section have been described as common complications of classical neurolysis of the median nerve. This study presents here the long-term results of decompression operation of the median nerve at the wrist, conserving the transverse ligament, as well as its comparison with the classical open neurolysis with a complete section of the ligament. This is an analysis of a retrospective cohort of 114 patients, who were operated on for carpal tunnel syndrome. A clinical, electromyographic, and dynamometric evaluation of the patients studied was carried out in a comparative analysis of the surgical techniques used (flexor retinaculum lengthening according to the Simonetta technique and classical open neurolysis of the median nerve), in a period of 10 years after the operation. The ligamentoplasty technique, in the long-term, contributes to better results of manual force, with a smaller resolution of tingling sensations than the neurolysis with complete section of the transverse ligament. For those patients who do not present a severe clinical or electromyographic syndrome, and in addition require manual effort for their daily activities, the technique of ligamentoplasty, according to Simonetta, is a surgical option to be taken into account.
Asunto(s)
Síndrome del Túnel Carpiano/cirugía , Descompresión Quirúrgica/métodos , Fuerza de la Mano , Ligamentos Articulares/cirugía , Adulto , Síndrome del Túnel Carpiano/diagnóstico , Estudios de Cohortes , Electromiografía/métodos , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Dimensión del Dolor , Rango del Movimiento Articular/fisiología , Estudios Retrospectivos , Medición de Riesgo , Índice de Severidad de la Enfermedad , Factores de Tiempo , Resultado del Tratamiento , Articulación de la Muñeca/cirugíaRESUMEN
Objetivos. La descompresión del nervio mediano mediante la apertura del retináculo flexor se considera un tratamiento satisfactorio en pacientes afectos del síndrome del túnel carpiano. No obstante, diversos factores como la edad, pueden influir en los resultados postoperatorios. Presentamos los resultados a largo plazo de la cirugía de descompresión del nervio mediano en la muñeca en pacientes de edad avanzada. Métodos. Se trata de un estudio prospectivo histórico, a largo plazo, sobre 52 pacientes intervenidos a una edad de 65 años o superior del síndrome del túnel carpiano. Hemos llevado a cabo una valoración clínico-funcional (cuestionario de Levine et al.), electromiográfica y dinamométrica de los pacientes estudiados, referida a un tiempo postoperatorio medio de 10 años. Resultados. Los valores del cuestionario de Levine revelaron resultados favorables en el postoperatorio, a un seguimiento medio de 10,35 años, con una mejoría media en la escala clínica del cuestionario de 1,93 puntos (intervalo de confianza [IC] del 95%: 1,72-2,17) y en la escala funcional de 0,83 puntos (IC del 95%: 0,68-0,99). De igual modo, los valores electromiográficos presentaron una mejoría significativa respecto a sus valores preoperatorios (mejoría media de velocidad sensitiva 8,43m/s, IC del 95%: 8,17-11,63; mejoría media de latencia motora 1,65ms, IC del 95%: 1,24-2,25). Los datos de fuerza de presión manual no alcanzaron significación estadística. Conclusiones. En pacientes de edad avanzada, la sección completa del ligamento transverso del carpo permite mantener diferencias favorables en la mayoría de los parámetros estudiados tras 10 años desde la cirugía, siendo el tratamiento quirúrgico una opción recomendable(AU)
Purpose. Carpal tunnel release by opening the flexor retinaculum is considered a satisfactory treatment. However, several factors, like ageing, may influence postoperative results. We present the long term outcomes in elderly patients. Methods. This is an historical prospective long term study of 52 patients who received surgical treatment of carpal tunnel syndrome when they were 65 or older. We have carried out a clinical-functional (with the Levine questionnaire), electromyographic and dynamometric valuation of the patients studied, up to ten years from the surgery. Results. The results of Levine's questionnaire, revealed favourable data for a mean follow-up of 10.35 years, with a mean improvement in the clinical score of 1.93 points (95% confidence interval [CI]: 1.72-2.17) and in the functional score of 0.83 points (95% CI: 0.68-0.99). Similarly, the electromyographic values showed a significant improvement compared to preoperative ones (mean difference of sensory velocity of 8.43m/s, 95% CI: 8.17-11.63; mean difference of motor latency of 1.65ms, 95% CI: 1.24-2.25). The data on grip strength did not reach statistical significance. Conclusions. In elderly patients, complete section of the carpal transverse ligament, allows maintaining favourable differences in most of the parameters studied, ten years after surgery, making the surgical treatment a recommendable option(AU)