Carpal tunnel syndrome, the most common entrapment neuropathy of the upper extremity, is caused by compression of the median nerve as it travels through the carpal tunnel. Classically, patients with the condition experience pain and paresthesias in the distribution of the median nerve, which includes the palmar aspect of the thumb, index and middle fingers, and radial half of the ring finger. A...

OBJECTIVE To assess the separate effects of thumb and finger extension/flexion on median nerve position and cross-sectional area. METHODS Ultrasonography was used to assess median nerve transverse position and cross-sectional area within the carpal tunnel at rest and its movement during volitional flexion of the individual digits of the hand. Both wrists of 165 normal subjects (11 men, 4 wome...

Understanding the kinematics of the carpus is essential to the understanding and treatment of wrist pathologies. However, accurate measurement of the kinematics of the carpal bones is difficult because they are small bones undergoing complex movements of small amplitudes. As a result, to date, there is no clear consensus on carpal kinematics. Moreover, most studies only investigate single rotat...

Background Multicentric carpotarsal osteolysis (MCTO), a skeletal dysplasia presents in early childhood mimicking juvenile idiopathic arthritis (JIA). Recognition of this syndrome is essential to avoid unnecessary treatment with immunosuppressive agents because of different course and treatment. Case Report A 3-year-old boy presented with swelling and restriction of right wrist joint and left ...

OBJECTIVE To correlate morphological findings of idiopathic carpal tunnel syndrome (CTS) with the function of the median nerve. METHODS In this study, 105 wrists of 105 women patients with idiopathic CTS, and 36 wrists of 36 female volunteers were subjected to nerve conduction studies and MRI. Cross sectional area, signal intensity ratio, and the flattening ratio of the median nerve, carpal t...

In extant birds, the hand is permanently abducted towards the ulna, and the wrist joint can bend extensively in this direction to fold the wing when not in use. Anatomically, this asymmetric mobility of the wrist results from the wedge-like shape of one carpal bone, the radiale, and from the well-developed convexity of the trochlea at the proximal end of the carpometacarpus. Among the theropod ...

Ectrodactyly is a rare anomaly seen in the appendicular skeleton and characterized by cleft or split between bone soft tissue distal regions of extremities. may be associated with absence hypoplasia several carpal-metacarpal bones, phalanx duplication, metacarpal synostosis. In this case report, 2-years-old mixed breed male dog was presented withhold up left forelimb inspectional abnormality cl...

Force transmission across the wrist during a grasping maneuver of the hand was simulated for three children with juvenile idiopathic arthritis (JIA) and for one healthy age-matched child. Joint reaction forces were estimated using a series of springs between articulating bones. This method (i.e., rigid body spring modeling) has proven useful for examining loading profiles for normally aligned w...

Carpal tunnel syndrome is a commonly encountered entity. The tunnel is a narrow space filled with nerves and tendons. Numbness and paraesthesia over the median nerve territory is classical of nerve compression. Pregnancy, hypothyroidism and diabetes are frequent associations, but sometimes no cause can be ascertained. Local pathologies like ganglia and other soft tissue tumors occasionally resu...