The common peroneal nerve entrapment is usually at the common peroneal nerve around the head of the fibula. There is a localized entrapment with a painful nodule of pressure. Needle knife release of the nerve entrapment will tend to restore the symptoms, and the degree of recovery will be related to the degree and duration of nerve injury. Treatment of entrapment syndrome of the common peroneal nerve is taken: Peroneal head point: 1-1.5 cm below the peroneal head at the anterolateral or N fossa lateral to the medial border of the long and short head tendons of the biceps femoris. After routine disinfection, the incision line is in the same direction as the common peroneal nerve travel, the needle body is perpendicular to the skin surface, stabbed into the subcutis quickly at the lateral side of the peroneal head and the tip of the peroneal head respectively, slowly reach the bone surface, close to the bone surface, shovel stripping at the stop of the biceps femoris tendon and the beginning of the long peroneal tendon, a loose sensation under the knife is sufficient, the needle is discharged, and local compression is applied for 2-5 minutes. If there is local throbbing pain and discharge after nerve stimulation, withdraw the needle in time. Note: Do not lean too far back when treating the peroneal tuberosity and prevent the needle from sliding to avoid injury to the sciatic nerve. Postoperative maneuvers: After treatment of common peroneal nerve entrapment syndrome, have the patient repeatedly squat and rise and help the patient perform inward and outward foot rotation several times. Peroneal long and short muscle injuries may not be treated with external manipulation.