Muscular variations of the flexor compartment of forearm are usual and can result in multiple clinical conditions limiting the functions of forearm and hand. The variations of the muscles, especially accessory muscles may simulate soft tissue tumors and can result in nerve compressions. During a routine dissection of the anterior region of the forearm and hand, an unusual muscle was observed on...

Myoelectric artificial limbs can significantly advance the state of the art in prosthetics, since they can be used to control mechatronic devices through muscular activity in a way that mimics how the subjects used to activate their muscles before limb loss. However, surveys indicate that dissatisfaction with the functionality of terminal devices underlies the widespread abandonment of prosthes...

In many species of frog, the forelimb muscles important in amplexus are known to be much larger in males than in females. We studied this dimorphism in three forelimb muscles in the bullfrog [abductor indicus longus (AIL), flexor carpi radialis (FCR) and extensor carpi radialis (ECR)] by testing their isometric contractile properties. One muscle that is not dimorphic, the extensor carpi ulnaris...

Recurrent deformity from centralization and radialization led to the development in 1999 of a new technique by the author called ulnarization. This method is performed through a volar approach in a vascular and physeal sparing fashion. It biomechanically balances the muscle forces on the wrist by dorsally transferring the flexor carpi ulnaris (FCU) from a deforming to a corrective force. The pr...

Perhaps the least satisfactory diagnosis in painful conditions of the wrist is that of tenosynovitis. In the first four patients in this series a diagnosis of tenosynovitis of the flexor carpi ulnaris was made, but their failure to respond to the usual conservative measures stimulated further investigation. The tests herein described, and the response to operative fusion, suggest that sprain of...

The present case report describes a rare finding of dorsal branch of the ulnar nerve which originated from the junction of upper fourth and lower three fourth of the forearm, passed between the two heads of flexor carpi ulnaris and then descended along the medial border of the extensor surface forearm in the superficial fascia. On the dorsal aspect of the wrist, it divided into two branches, a ...

BACKGROUND The ulnar free forearm flap (UFFF) represents a variant of soft tissue transplants for orofacial reconstruction with specific topographic anatomy of the donor-site, which has to be considered during flap raising. METHODS Analysis of intraoperative findings during harvest of 322 UFFFs for head and neck reconstruction was performed. Harvest technique in view of variations of skin fla...

The electromyographic (EMG) signal is used to discriminate eight hand motions: power grasp, hook grasp, wrist flexion, lateral pinch, flattened hand, centralized grip, three-jaw chuck and cylindrical grasp. From the analysis of the PC-based control system, a three-channel EMG signal is used to distinguish eight hand motions for the short below elbow amputee. Pattern recognition is used in this ...

We investigated the reference values of the dorsal ulnar cutaneous nerve (DUC) sensory nerve conduction (SNC) in 66 healthy individuals. Measurements were processed using stimulating electrodes positioned between the ulnar bone and the flexor carpi ulnaris muscle, 11-13 cm proximal to the active electrode recording. Superficial recording electrodes were placed on the fourth intermetacarpal spac...