Changes in carpal tunnel pressures following endoscopic carpal tunnel release: a cadaveric study.
J Hand Surg Am
; 23(1): 43-7, 1998 Jan.
Article
en En
| MEDLINE
| ID: mdl-9523953
The purpose of this experiment was to determine the amount of tissue that must be sectioned to adequately decompress the median nerve during an endoscopic carpal tunnel release procedure. In 6 fresh cadaver forearms, 2 balloons were inserted into the carpal tunnel. The first balloon was filled with saline solution to cause an initial carpal intracanal pressure of 50 mmHg. Pressure measurements were recorded, using the second balloon, at various increments of the flexor retinaculum division at 3 wrist positions (neutral, 35 degrees ; flexion, 35 degrees extension). At all increments of sectioning, carpal tunnel pressures in the neutral wrist position were consistently lowest and the values in 35 degrees extension were greatest. At each wrist flexion/extension angle, the pressure statistically decreased during incremental division of the flexor retinaculum. Incomplete release of the transverse carpal ligament resulted in incomplete decompression in the canal. Sectioning the overlying aponeurosis caused a further significant decrease in intracanal pressure.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Huesos del Carpo
/
Síndrome del Túnel Carpiano
/
Antebrazo
Límite:
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
J Hand Surg Am
Año:
1998
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Estados Unidos