conclusions of the open reductions and internal fixations, 11 (92%) were successful and patients made a full recovery. conservative management was unsuccessful in 4 cases; one patient required surgery for metacarpal boss, one patient had retraction of the tendon at one week follow up and another had weak flexion of the wrist. we recommend open reduction and internal fixation for these injuries....

Variations in the extensor compartment of forearm are common and are significant to neurologists, surgeons and anatomists. The present case report describes a well-developed muscle belly medial to the tendons of extensor carpi radialis longus and extensor carpi radialis brevis. Muscle belly is originating from common extensor origin on lateral epicondyle and is inserted to base of third metacar...

We studied the origin of extensor carpi radialis brevis using 40 fresh frozen human cadaver specimens. Ten were stained with haematoxylin and eosin and trichrome which showed the collagenous structure of the extensor tendons at their origin. Gross anatomical observation showed that there was no definitive separation between brevis and communis at the osseotendinous junction. The histological fi...

There have been reports of ulnar nerve compression due to anatomic variations at Guyon’s canal. Knowledge certain canal may help hand surgeons identify possible unconventional sites the nerve. We present a case report patient with an aberrant palmaris brevis muscle belly that was found cross over proximal aspect tunnel neurovascular bundle potentially causing symptoms. Surgical interventions re...

Figure 1. Avulsed extensor carpi radi-alis longus and brevis enthesis.

In this paper, we introduce a new mode of mechanomyography (MMG) signal capture for enhancing the performance human-machine interfaces (HMIs) through modulation normal pressure at sensor location. Utilizing novel approach, increased MMG resolution is enabled by tunable degree freedom to sensor-skin contact area. We detail mechatronic design, experimental validation, and user study an armband wi...