Review Question - QID 6702

A 25-year-old woman with a healed proximal tibiofibular fracture treated with an intramedullary nail 2 years ago is currently wearing an ankle-foot orthosis (AFO) and reports a persistent foot drop. She is unhappy with the AFO and has not seen any functional improvement despite months of physical therapy. Serial electromyograms (EMG) show no recent change over the past year. Examination and EMG findings are consistent with a tibialis anterior 1/5, extensor hallucis longus 2/5, extensor digitorum longus 2/5, posterior tibial tendon (PTT) 5/5, peroneals 3/5, flexor hallucis longus 5/5, and gastrocsoleus 5/5. No discrete nerve lesion was identified. The patient has a flexible equinovarus contracture. What is the most appropriate management?