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目的:观察三平面关节内截骨保关节手术治疗跟骨关节内骨折畸形愈合的疗效。方法:回顾性分析2016年1月至2019年12月西安交通大学附属红会医院足踝外科收治的16例跟骨关节内骨折畸形愈合患者资料。男12例，女4例；年龄31~58岁，平均43.4岁；左侧10例，右侧6例；均为Yu Ⅱ型（后关节面存在压缩骨块）。均采用三平面关节内截骨术治疗。通过比较患者术前与末次随访时的影像学参数、美国足踝外科协会（AOFAS）的踝-后足评分、疼痛视觉模拟评分（VAS）及健康调查12条简表（SF-12）心理与生理评分评估疗效。结果:所有患者术后随访20~60个月(平均42.9个月），骨愈合时间为10~14周(平均11.5周)。末次随访时B?hler角（25.7° ± 2.3°）、Gissane角（117.1° ± 5.8°）、Meary角（2.9° ± 1.3°）、距跟角（31.3° ± 3.0°）、后足力线角（3.9° ± 1.8°）、踝关节高度[（82.3 ± 2.6）mm]、跟骨高度[（56.9 ± 2.4）mm]、跟骨宽度[（41.4 ± 2.1）mm]、AOFAS的踝-后足评分[（82.3 ± 7.3）分]、VAS评分[3（2, 3）分]、SF-12心理评分[（46.6 ± 3.6）分]、SF-12生理评分[（43.6 ± 3.5）分]均较术前[8.4° ± 2.7°、137.5° ± 9.3°、8.3° ± 4.3°、24.6° ± 3.7°、-4.6° ± 3.2°、（76.1 ± 3.1）mm、（53.8 ± 3.0）mm、（50.2 ± 2.2）mm、（51.9 ± 7.7）分、6（6, 7）分、（37.5 ± 3.8）分、（31.0 ± 2.6）分]显著改善，差异有统计学意义（n P<0.01）。n 结论:针对Yu Ⅱ型跟骨关节内骨折畸形愈合，三平面截骨可以解剖复位塌陷的后关节面骨块，重塑跟骨正常解剖形态，保留距下关节，中短期随访疗效肯定。“,”Objective:To observe the curative effects of triplane intra-articular osteotomy in the treatment of malunion of calcaneal intra-articular fracture.Methods:The 16 patients were retrospectively analyzed who had been admitted to Foot and Ankle Surgery Department, Honghui Hospital from January 2016 to December 2019 for malunion of calcaneal intra-articular fracture. They were 12 males and 4 females, with an average age of 43.4 years (from 31 to 58 years). The left side was affected in 10 cases and the right side in 6 cases. All malunions were type Yu Ⅱ (compressed bone fragments on the posterior articular surface) and treated with triplane intra-articular osteotomy. The curative effects were assessed by comparing the radiological parameters, American Orthopaedic Foot and Ankle Surgery Society (AOFAS) ankle-hindfoot score, pain visual analog scale (VAS) and psychological and physical scores in Health Survey 12-item Short Form (SF-12) between preoperation and the final follow-up.Results:All the patients were followed up for 20 to 60 months (average, 42.9 months); the bone healing time was 10 to 14 weeks (average, 11.5 weeks). At the final follow-up, their B?hler angle (25.7°±2.3°), Gissane angle (117.1°±5.8°), Meary angle (2.9°±1.3°), talocalcaneal angle (31.3°±3.0°), hindfoot alignment angle (3.9°±1.8°), ankle height [(82.3±2.6) mm], calcaneus height [(56.9±2.4) mm], calcaneus width [(41.4±2.1) mm], AOFAS ankle-hindfoot score [(82.3±7.3) points], median VAS score [3 (2, 3) points], SF-12 psychological score [(46.6±3.6) points], and SF-12 physiological score [(43.6±3.5) points] were significantly improved than the preoperative values [8.4°±2.7°, 137.5°±9.3°, 8.3°±4.3°, 24.6°±3.7°, -4.6°±3.2°, (76.1±3.1) mm, (53.8±3.0) mm, (50.2±2.2) mm, (51.9±7.7) points, 6 (6, 7) points, (37.5±3.8) points, and (31.0±2.6) points] (alln P<0.01)n Conclusion:In the treatment of type Yu Ⅱ malunion of calcaneal intra-articular fracture, triplane osteotomy can anatomically reduce the bone fragments of collapsed posterior articular surface, reshape the normal anatomy of the calcaneus, and preserve the subtalar joint, leading to positive short- and mid-term follow-up effects.