摘要：AVASCULAR NECROSIS OF THE FEMORAL HEAD IS A POTENTIALLY DISABLINGDISEASE THAT USUALLY LEADS TO DESTRUCTION OF THE FEMORAL HEAD INPATIENTS. ITS ETIOLOGY AND PATHOGENESIS ARE UNKNOWN, DESPITERECOGNITION OF VARIOUS ASSOCIATED FACTORS, SUCH AS TRAUMA,COAGULATION ABNORMALITY, CORTICOSTEROID ADMINISTRATION, EXCESSIVEALCOHOL INTAKE, AND DYSBARIC PHENOMENA.MANY TECHNIQUES HAVE BEEN INTRODUCED TO SALVAGE THE FEMORAL HEAD,INCLUDING CORE DECOMPRESSION, OSTEOTOMY, AND BONE GRAFTING.RESULTS OF THESE PROCEDURES HAVE BEEN INCONSISTENT. TOTAL HIPARTHROPLASTY IS THE TREATMENT WITH THE HIGHEST LIKELIHOOD OFPROVIDING SYMPTOM RELIEF AND GOOD FUNCTIONAL OUTCOMES, BUTINDICATIONS FOR THIS METHOD ARE LIMITED BY DEVICE FAILURES ANDPROSPECTS OF REPEATED REPLACEMENT OF HARDWARE IN PATIENTS WHOUNDERGO ARTHROPLASTY AT A YOUNG AGE.THE USE OF MICROSUGICAL BONE FLAPS IN TREATING AVASCULAR NECROSIS OFTHE FEMORAL HEAD WAS INITIATED IN AN EFFORT TO ENHANCEREVASCULARIZATION AND TO ARREST THE PROGRESSION OF THE NECROSIS.SINCE MEYERS FIRST REPORTED ON THE MICROSURGICAL FIBULAR FLAP AS ATREATMENT FOR OSTEONECROSIS OF THE FEMORAL HEAD IN 1978, MANYSURGEONS HAVE PERFORMED THIS PROCEDURE FOR AVASCULAR NECROSIS OFTHE FEMORAL HEAD, AND SATISFACTORY RESULTS HAVE BEEN REPORTED.
