目的探讨改良双侧胫骨延长术的治疗效果。
Objective To study the therapy effect of improved bilateral tibia lengthening.
结论改良后的双侧胫骨延长术，胫骨骨质愈合时间缩短，并发症少，可同时矫正膝内、外翻畸形。
Conclusion the improved bilateral tibia lengthening technique is recommended for advantage of short time of bone union, less complication and correcting the varus deformity of knee simultaneously.
方法：胫骨远端骨骺牵伸延长术、胫骨下端截骨延长术。
Methods: Distal tibia osteotomy lengthening and epiphysis distraction lengthening operation.
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