目的　评价骨痂延长术治疗婴幼儿期化脓性髋关节炎后严重短肢畸形的疗效。　方法采用长骨髓内延长器对 2 4例婴幼儿期化脓性髋关节炎后遗肢体短缩畸形行股骨骨痂延长术 ,术前患肢平均短缩 8.4( 6～ 12 .5 )cm。　结果　随访 3～ 5年 ,2 4例患者短肢畸形全部纠正 ,股骨延长 6.2～ 12 .5cm ,平均 0 .6mm/d。 2 0例跛行消失 ,4例跛行明显减轻。　结论　股骨骨痂延长术是治疗婴幼儿期化脓性髋关节炎后严重短肢畸形的较好方法 Objective To evaluate the effect of callus prolongation on the treatment of severe short limb deformity in infantile suppurative hip arthritis. Methods The long bone marrow extender was used to prolong the femoral callus in 24 cases of infantile suppurative hip osteoarthritis of the hips. The average length of the limbs shortened 8.4 (6 ~ 12.5) cm. Results All cases were followed up for 3 to 5 years. All the 24 cases were corrected for short limb deformity. The femur was extended from 6.2 to 12.5 cm with an average of 0.6 mm / d. 20 cases of limp disappeared, 4 cases of limp significantly reduced. Conclusion The femoral callus prolongation is a good method to treat severe short limb deformity after infantile suppurative hip arthritis