Ulnar nerve injury leads to all except:
Ans. D. Adduction of thumbThe ulnar nerve can suffer injury anywhere between its proximal origin of the brachial plexus all the way to its distal branches in the hand. It is the most commonly injured nerve around the elbow. Although it can be damaged under various circumstances, it is commonly injured by local trauma or physical impingement.Motor deficit:a. Weakness in flexion of the hand at the wrist, loss of flexion of ulnar half of digits, or the 4th and 5th digits,b. Presence of a claw hand deformity when the hand is at rest, due to hyperextension of the 4th and 5th digits at the metacarpophalangeal joints, and flexion at the interphalangeal joints.c. Weakness of adduction of the thumb, which may be assessed by the presence of Froment's signd. Wasting of hypothenar musclesSensory deficit: Loss of sensation or paresthesiae in ulnar one third of the palm and dorsum of hand, and the medial 11/2 digits on both palmar and dorsal aspects of the hand
Sensory loss of medial 1/3rd of the hand
Weakness of the hypothenar muscle
Claw hand
Adduction of thumb
Upper Extremity