Abstract：
Cubitus varus deformity is the most common late complication of malunited supracondylar fracture that requires corrective osteotomy and fixation. From 2009 to 2017, 40 consecutive patients with cubitus varus deformity were included. Twenty patients underwent the conventional closing-wedge osteotomy (conventional group), while the other twenty patients underwent the 3D-printed model and osteotomy template osteotomy (3D-printed template group). The functional outcome was evaluated using the Mayo Elbow Performance Index (MEPI) Score and Flynn criteria. There were no statistically significant differences were observed regarding the humerus-elbow-wrist angle and tilting angle between the two groups, both preoperatively and postoperatively at 24 months. No statistically significant differences were observed regarding the elbow ROM (127.0 ± 4.7° VS 128.9 ± 3.8°) and MEPI score (93.5 ± 3.3 VS 94.3 ± 4.1) between the groups. All patients were satisfied both cosmetically and functionally as per the Flynn criteria and MEPI score. The conventional osteotomy and 3D-printed model and osteotomy template techniques both met the treatment requirements of cubitus varus deformity. The 3D-printed template technique showed better osteotomy accuracy, but no significant advantage regarding the functional and cosmetic results than conventional osteotomy.
摘要：
肘内翻畸形是髁上骨折最常见的晚期并发症，需要矫正截骨和固定。从2009年到2017年，包括40例连续的肘内翻畸形患者。20例患者行常规闭合楔形截骨术(常规组),而其他20例患者接受了3D打印模型和截骨模板截骨（3D打印模板组）。使用梅奥肘部性能指数（MEPI）评分和弗林标准评估功能结果。两组的肱骨-肘部-腕部角度和倾斜角度差异无统计学意义。术前和术后24个月。两组之间的肘部ROM（127.0±4.7°VS128.9±3.8°）和MEPI评分（93.5±3.3VS94.3±4.1）无统计学差异。根据Flynn标准和MEPI评分，所有患者在外观和功能上都满意。常规截骨、3D打印模型和截骨模板技术均满足肘内翻畸形的治疗要求。3D打印模板技术显示出更好的截骨准确性，但在功能和美容效果方面没有比传统截骨明显的优势。
