328 Outcome Analysis of Common Peroneal Nerve Neuroplasty at Lateral Fibular Neck
Abstract INTRODUCTION Common Peroneal Nerve (CPN) neuropathy is the most common entrapment neuropathy of the lower extremities. Patients present with sensory loss along the anterolateral leg and dorsum of the foot, or weakness of the foot dorsiflexors and evertors. METHODS This is an IRB-approved retrospective review of a prospectively maintained database of patients who underwent decompressive surgery for CPN neuropathy with a minimum of 3 months follow up at Loyola University Medical Center. Motor scores were totaled using the Oxford Scale, with an improvement defined as resolution of pain or sensory loss or improvement in motor score by at least a 1-grade. RESULTS >30 patients were analyzed. Of the 26 patients who presented with abnormal lower extremity motor scores, 24 had at least 1 grade improvement in motor scores, and 2 experienced no change. 26 patients presented with lower extremity decreased sensation, and 12 of these patients reported improved sensation, while 14 patients reported no change. Patients with an increased time to surgery (>67 weeks) had a non-significant trend towards worse outcomes (p = .06). Patients who presented with weakness had a significant trend towards improvement (p = .0006) compared to patients presenting with pain and sensory deficits. CONCLUSION Surgical decompression of the CPN at the lateral fibular neck is an effective and safe procedure. Patients presenting with pain or sensory loss did not show a significant trend towards improvement with surgery, while patients presenting with motor deficits had a significant improvement with surgery. There was a trend of worse outcomes with a symptoms-to-surgery time greater than 67 weeks.