We present a case of carpal tunnel syndrome involving wrist trigger caused by a hypertrophied lumbrical muscle with flexor synovitis. The case was a 40-year-old male heavy manual worker complaining of numbness and pain in the median nerve area. On active flexion of the fingers, snapping was observed at the carpal area, and forceful full grip was impossible. Tinel's sign was positive and an elec...

Carpal tunnel syndrome and Raynaud’s phenomena are common diseases and coexist in some patients while in others Raynaud’s phenomenon may be a clinical feature of carpal tunnel syndrome. I describe an interesting case with Raynaud’s phenomenon as a predominant presenting clinical feature due to an underlying mild carpal tunnel syndrome with preferential involvement of the autonomic fibers. Noctu...

We investigated how repetitive hand activity normally affects carpal tunnel pressure and whether a flexible wrist splint can influence this effect. Nineteen healthy subjects were evaluated under four test conditions: at rest with and without a wrist splint (baseline) and while performing a repetitive task with and without a wrist splint. The task involved loading and unloading 1 lb. cans from a...

This study investigated the expansion of the carpal tunnel resulting from the application of palmarly directed forces to the transverse carpal ligament (TCL) from inside the carpal tunnel. Ten fresh-frozen cadaveric hands were dissected to evacuate the carpal tunnel, and thus to expose the TCL. A custom lever device was built to apply forces, ranging from 10 N to 200 N, to the TCL. Without forc...

As per literature the immediate and late carpal tunnel syndrome in colles fracture and other wrist injuries is known but tardy carpal tunnel syndrome in fracture Scaphoid is rare. I am presenting a case of tardy carpal tunnel syndrome in patient with non-union fracture scaphoid with 40 years old injury.

and Management of Carpal Tunnel Syndrome To the Editor: The May/June guest editorial1 raised several issues regarding the use of electrodiagnostic testing in the diagnosis and management of carpal tunnel syndrome. In this guest editorial, Dr Fowler expressed concerns regarding the sensitivity and specificity of electrodiagnostic testing in carpal tunnel syndrome, the benefit of confirmatory ele...

Carpal tunnel syndrome can be secondary in some patients, and vascular anomalies (usually a persistent median artery), median nerve variations, or both are among the etiologic factors. High division of the median nerve proximal to the carpal tunnel (known as a bifid median nerve) is a median nerve anomaly that has an incidence rate of 2.8%. This rare entity is often associated with various abno...

Previously presented evidence indicates that carpal tunnel syndrome is related to compression of the median nerve inside the carpal tunnel. Biomechanical arguments in which the extrinsic finger flexor tendons inside the carpal tunnel are characterized as a frictionless pulley-belt mechanism are presented to show quantitatively how wrist size, wrist position and hand position affect forces on th...