This unconscious patient had a dorsal forearm laceration (straight arrow) which appeared superficial,
but wrist tenodesis (curved arrows) demonstrated injury to the extensor tendons of the middle, ring and small fingers
(asterixes), which had incomplete extension with passive wrist flexion. This was confirmed in the operating room.
Because of the obliquity of the laceration, the injury could not have been demonstrated by simple wound exploration in the emergency room.