Fig. 8.

Flow diagram depicting of the management of radial nerve palsy associated with humerus fracture. The authors recommend utilizing ultrasound to evaluate nerve continuity in the initial phase. If evidence of nerve entrapment or nerve laceration is detected, immediate nerve exploration is advised. In certain conditions, such as major vascular injury, open fracture, or multiple injuries, early radial nerve exploration is required. When the ultrasound shows good continuity of the nerve, nerve contusion is suspected. Then, it is recommended to monitor clinical symptoms and perform electromyography (EMG) to evaluate the recovery status. The absence of signs and symptoms indicating recovery after 2–3 months suggests the requirement for surgical intervention, depending on the nature of the nerve pathology.