Iatrogenic femoral neuropathy is an uncommon surgical or obstetric complication that may be underreported. It results from compression, stretch, ischemia, or direct trauma of the nerve during hip arthroplasty, self-retaining retractor use in pelvicoabdominal surgery, lithotomy positioning for anesthesia or labor, and other more rare causes. Decreasing incidence of this complication after abdominal and gynecologic surgery but increase in its absolute numbers after hip arthroplasty has emerged over the last decade. We describe two illustrative cases related respectively to lithotomy positioning and self-retaining retractor use. The variability in clinical presentation of iatrogenic femoral nerve lesions, some new insights in their diverse pathophysiology, and in the diagnostic and treatment options are discussed with an update from the literature.

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HRUS confirms clinically diagnosed CTS in about half of the patients with normal NCS.

Background: Obesity is a major global health problem. Kuwait has a very high prevalence of obesity, and consequently, the number of bariatric surgeries is rising. Objectives: The aim of this study is to analyze the clinical presentation and electrodiagnostic features of peripheral nerve complications following bariatric surgery. Subjects and methods: We retrospectively involved a convenience sample of patients presenting at a tertiary referral center and analyzed the patterns and frequency of peripheral nerve involvement, correlations with operative techniques, perioperative complications, nutritional status, possible risk factors, and functional impairment. Results: Among the 58 cases, 23 presented with chronic distal symmetrical sensorimotor neuropathy, 10 suffered from small fiber neuropathy, 22 had mononeuropathies, 2 patients had acute axonal sensorimotor neuropathy, and only 1 patient had lumbar plexopathy. In 22 patients, we observed mononeuropathies (10 cases of carpal tunnel syndrome, 7 cases of peroneal compression at the knee, 4 cases of ulnar neuropathies at the elbow, and 1 case of meralgia paresthetica). Rapid weight loss and protracted postoperative vomiting tended to correlate with generalized neuropathies, while focal compression with loss of the protective subcutaneous tissue pad was associated with mononeuropathies. All patients suffered from a deficiency of at least 1 micronutrient. Compliance with supplementary therapy was poor. Some post-bariatric neuropathies interfere severely with patients' functional status. Conclusion: Prevention by close follow-up, nutritional intervention, and patient education to avoid habitual postures related to nerve compression is appropriate.

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