RESUMEN
Objective To provide a new method to repair nonunion or bone defect of femur Methods The descending branch of lateral circumflex femoral artery anastomosis with the lateral superior genicular artery and the branches distribution of the lateral genicular artery were obsereved on 30 sides of adult cadaveric lower limbs The bone (periosteal) flap of the lateral condyle of femur with the pedicle of the descending branch of lateral circumflex femoral artery was designed and appdied in clinical to repair nonunion or defect in the middle or inferior of femur of 13 patiens Results The follow up period was 14～20 weeks All fracture were unionized and union periods were 13～20 weeks, the results were excellent Conclusion The anatomical location of vessels of this bone (periosteal) flap is enduring, the surgery is simply, the transposition is simble, the influence of donor is very small This bone (periosteal) flap adapt to repair nonunion or bone defect in the middle or inferior of femur