A 7-year retrospective study: comparison of the efficacy between rotational osteotomy at the base of femoral neck and vascularized iliac bone flap transfer in the treatment of osteonecrosis of the femoral head

Both rotational osteotomy of the base of the femoral neck under surgical dislocation and vascularized iliac bone flap transfer can obtain satisfactory short-term results in the treatment of CJFH-L type, ARCO III stage osteonecrosis of the femoral head. Rotational osteotomy at the base of femoral neck under surgical dislocation can be chosen to delay the collapse process for CJFH-L2 type, ARCOⅢB stage ONFH. Vascularized iliac bone flap transfer has the advantage of short operation time. It is easier and suitable for CJFH-L1 type, ARCOⅢA stage ONFH.