Upper Extremity Mononeuropathies

Question 1

Where would the median nerve be compressed? What are the symptoms? Where is the tinel’s sign?

Answer 1

Carpal tunnel; Grip weakness, sensory changes in first 4 digits. Tinel’s sign in carpal tunnel

Question 2

Where would the AIN be compressed? Symptoms? Tinel’s sign?

Answer 2

Compressed by the pronator teres and FD muscles; Inability to pinch 1 and 2 together. Tinel’s sign over pronator teres.

Question 3

Describe Ulnar compression at the elbow. Symptoms? Tinel’s sign?

Answer 3

Compression and Tine’ls at cubital tunnel, medial to olecranon; Dysesthesias in ulnar forearm, 4 and 5. Weakness in grip, interossei with claw-like hand posture.

Question 4

Describe Ulnar compression at Guyon’s canal. Symptoms? Tinel’s sign?

Answer 4

Decreased sensation at 4 and 5. Weakness at hypothenar eminence with inability to spread fingers; Tinel’s sign at guyon’s canal.

Question 5

Describe Radial nerve compression at the axilla. Symptoms?

Answer 5

Wrist extensor and tricep weakness. Decrease in sensation in dorsal wrist and hand; Crutch palsy

Question 6

Describe PIN compression. Symptoms?

Answer 6

Compression by supinator (Arcade of Frohse). Causes pain below lateral epicondyle that increases with supination. Pain with middle finger test and weak grip.

Question 7

Describe Radial nerve compression at the wrist. Symptoms? Tinel’s sign?

Answer 7

Pain, numbness and paresthesias over radial dorsal hand and thumb. Tinel’s sign at dorsal radial hand. Flexion, pronation and ulnar deviation causes pain.