The rotation design was applied to fasciocutaneous flap repair of lower limb defects to produce a functional and aesthetic result superior to that obtained by the transposition design. A prospective, consecutive series of 21 patients is reported, 14 males and 7 females, ranging in age from 17 to 81 years (mean 43 years). The primary defects, 8 traumatic, 12 cutaneous malignancy excisions, and 1 radionecrotic ulcer, ranged in size from 3.5 x 3 cm to 10 x 8 cm (mean 6.6 x 5 cm). The rotation fasciocutaneous flap base ranged from 5 to 25 cm (mean 12 cm), and the radius ranged from 4.5 to 20 cm (mean 9 cm). The inclusion of a back-cut at the flap base permitted direct donor-site closure in all but one patient, obviating the need for a split-thickness skin graft and avoiding the otherwise inevitable significant contour defect. Postoperative bed rest ranged from 3 to 7 days (mean 5 days). Three minor and no major complications occurred, and there was complete survival of all flaps. The results in this series indicate a role for the rotation fasciocutaneous flap in the management of traumatic and excisional defects in the lower limb. It has proved reliable, gives good aesthetic results, and reduces treatment costs.