The carpal tunnel was investigated by high-resolution computed tomographic (CT) scanning of two cadavers, two healthy persons, and 20 patients with carpal tunnel syndrome to outline normal and pathologic anatomy. The following changes leading to median nerve compression in the carpal canal were demonstrated by CT: (1) thickening of the transverse carpal ligament with resultant decrease in the v...

The transverse carpal ligament (TCL) serves as the origin of the thenar muscles and is integral to thenar muscle contraction anatomically and biomechanically. TCL hypertrophy has been observed in patients with carpal tunnel syndrome and is potentially caused by repetitive hand use. The purpose of this study was to investigate the biomechanical interaction between the TCL and the thenar muscles....

Eight of 11 patients who satisfy Smythe's criteria for the 'fibrositis' syndrome have subsequently developed carpal tunnel syndrome. Six of the 8 patients have gone on to develop an inflammatory polyarthritis, 3 of whom are seropositive and satisfy the criteria for classical rheumatoid arthritis. The relationship between the 'fibrositis' syndrome and rheumatoid arthritis is not clear, but the a...

BACKGROUND The Japanese Society for Surgery of -the Hand version of the Carpal Tunnel Syndrome Instrument (CTSI-JSSH), which consists of two parts--one for symptom severity (CTSI-SS) and the other for functional status (CTSI-FS)--is a self-administered questionnaire specifically designed for carpal tunnel syndrome. The responsiveness of the CTSI-JSSH was compared with that of the JSSH version o...

AIM Mini incision techniques for carpal tunnel release have become increasingly popular for the treatment of carpal tunnel syndrome. The main advantages of mini incision techniques are shorter recovery and return-to-work time. However, the risk of neurovascular injury still remains worrisome. We present a novel method to release the carpal tunnel by using nasal instruments. This novel technique...

INTRODUCTION The purpose of this study was to comparatively evaluate the clinical outcomes of open carpal tunnel release with or without flexor tenosynovectomy and epineurectomy for the treatment of idiopathic carpal tunnel syndrome. METHODS In this prospective single-blinded study, 61 wrists of 47 patients randomized to open carpal tunnel release without (Group-1) or with (Group-2) flexor te...

[Purpose] Carpal tunnel syndrome is the most common entrapment neuropathy of the median nerve. Splinting is one of the most used conservative treatment methods for carpal tunnel syndrome. The aim of this study was to show the effectiveness of splinting in carpal tunnel syndrome patients who were divided into two groups according to their level of symptoms. [Subjects and Methods] A total of 40 c...

BACKGROUND Carpal tunnel syndrome (CTS) is the most common neuropathy of upper limbs and a leading cause of upper extremity musculoskeletal disorders, in terms of work exposure, repetitive and forceful exertions of the hand and use of vibrating hand tools. The aim of the study was to evaluate etiological factors of carpal tunnel syndrome in subjects occupationally exposed to monotype movements ...