It is known that the major slowing of nerve conduction in the carpal tunnel syndrome occurs in the palm to wrist segment. A technique exploiting this fact and easily applicable in the routine laboratory would be useful in diagnosing early examples of the condition. To this end, orthodromic sensory potentials from stimulation of digits II and V, and of the palmar branches of the median and ulnar...

Carpal tunnel syndrome (CTS) is characterized by burning pain, numbness and tingling sensation in the thumb, index and middle fingers and the lateral half of the palm and progressive atrophy of the thenar muscles by compression of the median nerve within the carpal tunnel due to a variety of etiologic factors. Surgical intervention usually successfully relieves symptoms of CTS. Recently CTS has...

The median artery is the main source of blood for the forearm in intrauterine life. During the process of development the median artery gets obliterated and supplies the median nerve. Variation of persistent median artery and its accompanying with the median nerve in the carpal tunnel is one of the important anatomic variations of the upper limb. Thrombosis of the artery inside the carpal tunne...

We retrospectively reviewed 12 patients (3 men and 9 women, with a mean age of 72 years) who were surgically treated for carpal tunnel syndrome associated with Kienböck disease. All patients except 1 were incidentally diagnosed with Kienböck disease and had little or no wrist pain. Radiographic tests revealed advanced Kienböck disease in all patients. Intraoperative findings indicated that the ...

The carpal tunnel is a channel with fibroosseous walls leading from the deep flexor space of the forearm into the palm of the hand. Superficially it is bounded by the flexor retinaculum which stretches from the trapezium and scaphoid laterally to the pisiform and hamate medially. This tough sheet blends proximally with the deep fascia of the forearm and distally with the palmar aponeurosis. The...

Selective electrophysiological involvement of median motor fibers is rare in carpal tunnel syndrome. We report a patient with compression neuropathy of the median nerve who presented with isolated motor signs and symptoms without macroscopic evidence of compressive pathologies.

Proximal compression or neuropathy of the median nerve is rare compared with carpal tunnel syndrome but recognition and management of these conditions is important. Pronator syndrome refers to compression of the median nerve around the elbow, which may present with pain in the forearm and paraesthesia in the hand. Anterior interosseous syndrome (palsy) can result from mechanical compression or ...

While deviated wrist postures have been linked to the development of carpal tunnel syndrome, the relative contributions of posture-related changes in size, shape and volume of the carpal tunnel contribute to median nerve compression are unclear. The purpose of this study was two-fold: (1) to reconstruct the carpal tunnel from MRI data in neutral and non-neutral (30 degrees extension, 30 degrees...

in the hot compression test friction has a detrimental influence on the flow stress through the process and therefore, correcting the deformation curve for real behavior is very important for both researchers and engineers. in this study, a series of compression tests were simulated using abaqus software. in this study, it has been employed the taguchi method to design experiments by the factor...