Abstract
In low median-ulnar nerve palsy, the complete loss of intrinsic motor muscles (interosseous, lumbrical, thenar, and hypothenar muscles) produces a claw hand deformity. The net effects of intrinsic muscle loss include the disturbance of precision and fine motor coordination, diminished muscle volume, severe impairment of power pinch and grasp, and creation of posture deformity to the index, middle, ring, and little fingers. We describe a 29-year-old man suffering low median-nerve and ulnar-nerve palsy with claw hand deformity. We corrected the claw hand deformity using free tendon grafts to transfer the flexion tension of the extensor carpi radialis brevis tendon unit to the metacarpophalangeal joints.
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