Donor-site morbidity of the gracilis flap.

To determine whether there is a specific donor-site morbidity inherent in the elevation of the gracilis flap, we retrospectively examined 42 patients who underwent elevation of their gracilis muscles. We found, on dynamometric measurement, that the adduction strength of the hip joint was decreased by 11 percent when the gracilis muscle was elevated. This decrease in strength was not noticed by the patients. We also found an area of hypesthesia corresponding to the cutaneous territory of the obturator nerve in 40.5 percent of the patients. In addition, many patients were dissatisfied with the aesthetic appearance of the donor site, and a contour deformity of the thigh was present when a myocutaneous flap was elevated. Therefore, we conclude that the gracilis flap has a low but definite rate of donor-site morbidity. The advantages of the flap outweigh by far, however, the sequelae at the donor site.