A patient can't extend his wrist after he has met with an accident. He has no sensory loss. Level at which the affected nerve is injured?: (A) Spiral groove of humerus, (B) Head of radius, (C) Near medial epicondyle, (D) Surgical neck of humerus
Answer is A. Patient has wrist drop so radial nerve is involved, there can be sensory sparing in radial nerve injury.