Objective To observe the clinical results of treatment for ischemic necrosis of the femoral head with autogenous spongy bone morselized and BMP implantation after arthroscopic core decompression.Methods Retrospectively analyzing the clinical data of 23 cases(30 hips),who were treated with autogenous cancerous bone morselized and BMP implantation after arthroscopic core decompression.Results 23 patients were followed up after discharge,follow-up time was 12 to 36 months,with an average of20.4 months.X-ray demonstrate good bone restoration in femoral head.In the observation period,femoral fractured or collapsed in 1 case of stageⅡ C、1 case of stage ⅢB,the original pain symptom aggravating,so artificial joint replacement were implemented.The other cases can maintain the results obtained in postoperative 6 months.According to the comprehensive evaluation.all the cases were 40～92scores after treatment.The rate of excellent and good results Was 76.7%.The results were better in stage Ⅰ(5/5),Stage Ⅱ(12/16),and Stage Ⅲ(6/9).Hip pain disappeared or lightening obviously,function improved obviously,Xray demonstrate femoral head contour smoothly and joint clearance normal.Conclusion Autogenous spongy bone morselized and BMP implantation after arthroscopic core decompression had good clinic curative effects in treatment of inchoate ischemic necrosis of the femoral head.