In crutch paralysis most frequently affected nerve is:

Crutch paralysis: It follows prolonged use of crutches in the axilla. Most frequently, it involves the radial nerve.Effects of radial nerve injury in the axilla:Motor loss: Loss of extension at elbow due to paralysis of triceps brachiiLoss of extension at wrist (wrist drop)Sensory loss:Loss of sensation over;Posterior surface of lower pa of armDorsum of base of thumb and Small area over back of forearmRef: Concise Anatomy, By KK. Jain, Page 123.