The main motor impairment caused by tibial nerve injury is the inability to plantar flex the foot, weak inversion, and inability to stand on the tip of the foot. Due to the excessive stretching of the anterolateral calf muscle, the patient’s foot is dorsiflexed and externally turned, resulting in a “hooked foot” deformity, and the sensory impairment is mainly at the plantar aspect of the foot. The common peroneal nerve is superficially located at the peroneal neck and is susceptible to injury. After injury to the common peroneal nerve, the patient’s foot cannot be dorsiflexed, the foot droops and inversions, and because of the foot drooping, the patient walks with a cross-threshold gait, with sensory disturbances in the anterolateral calf and the dorsum of the foot. The superficial peroneal nerve mainly innervates the anterolateral calf muscles, and after the injury, the dorsum of the foot and the skin of each toe (except the dorsal side between the webs of 1 and 2 toes) lose sensation significantly, and the valgus of the foot is affected and inversion deformity occurs. The deep peroneal nerve mainly innervates the anterolateral muscles of the lower leg and the dorsalis pedis muscle, and after injury, the extensor muscles of the foot and toes are paralyzed, and horseshoe foot occurs, but there is no inversion.