A 75-year-old man is evaluated due to new-onset left foot weakness. The patient has a history of osteoarthritis in the right hip and has undergone total hip arthroplasty. The total hip arthroplasty was done in general anesthesia in the left lateral decubitus. The patient has been complaining of weakness in the left foot. Physical examination shows loss of dorsiflexion and eversion of the left foot. He is unable to extend his left foot toes. The sensation is lost over the dorsum of the left foot. The rest of the neurological examination for both limbs is normal. This patient has an injury in which of the following nerves?

Question

Quizplus · Accepted Answer

Eductional Objective: Prolonged lying on one side could compress the common fibular nerve at the lateral neck of the fibula. Common fibular nerve injury leads to loss of foot dorsiflexion and eversion. Additionally, the patient can not extend his toes. The sensation is diminished over the dorsum of the foot.

A 75-Year-Old Man Is Evaluated Due to New-Onset Left Foot