Drop foot arises from dysfunction within the anatomic, muscular, or neurologic aspects of the lower extremity. The authors describe a patient with drop foot who had a compressed common peroneal nerve caused by posterior fibular head dysfunction. One 15-minute session of osteopathic manipulative treatment resolved the patient's symptoms. It is important for physicians to use osteopathic manipulative medicine to diagnosis and manage this condition, particularly when it results from fibular head dysfunction.