应用胎儿脱钙骨移植治疗四肢良性病变切除术后骨缺损１０例，其中骨囊肿５例，骨纤维结构不良１例，内生软骨瘤１例，骨脓肿３例。在彻底刮除病灶后，用胎儿脱钙骨移植充填骨腔。术后随访６个月～８年，移植骨生长良好，与受体骨融为一体，肢体功能恢复良好，无不良反应。胎儿脱钙骨具有取材方便，制备及储存简单，费用低廉的优点，适合四肢良性病变切除术后骨缺损的充填治疗。 Application of fetal decalcified bone transplantation in the treatment of benign lesion after limbal resection in 10 cases of bone defects, including 5 cases of bone cysts, 1 case of fibrous dysplasia, 1 case of endochondritis and 3 cases of bone abscess. In the complete curettage lesions, with fetal decalcified bone graft filling the bone cavity. All the patients were followed up for 6 months to 8 years. The bone graft grew well and integrated with the recipient bone. The limb function recovered well with no adverse reactions. Fetal decalcified bone with convenient access, preparation and storage of simple, low cost advantages for the treatment of benign limbs amputation bone defect filling.