A person is not able to extend his metacarpophalangeal joint. This is due to injury to which nerve :: (A) Ulnar nerve, (B) Radial nerve injury, (C) Median nerve injury, (D) Posterior Introsseus nerve injury
Answer is D. In radial nerve head surgery, the most common nerve to get injured is posterior interosseous nerve. There is thumb and finger drop. Extension of wrist is spared.