Neurotmesis of the lateral femoral cutaneous nerve when coring for iliac crest bone grafts.

Two patients are presented suffering from meralgia paresthetica, owing to neurotmesis of the lateral femoral cutaneous nerve following bone-graft harvesting from the iliac crest with a cylindrical osteotome. Despite this donor-site complication, the advantages of a coring technique as compared with traditional bone-graft harvesting techniques are numerous: better cosmetic results, less pain, no need for general anesthesia, shorter hospitalization, and a minimum of donor-site morbidity. Also, this technique has proven itself easy and effective. To minimize donor-site morbidity, some clinical recommendations to avoid neurotmesis are given with regard to the anatomy and anatomic variations of the lateral femoral cutaneous nerve.