METHODS: A retrospective review of operative distal tibia fractures (AO/OTA classification 43A and 43C - 43B were excluded due to lower likelihood of fracture changing the ADTA) was performed. ADTA on lateral radiograph was measured as the angle relative to the tibia shaft.
RESULTS: 100 patients with post-operative radiographs that met inclusion criteria were analyzed. The average ADTA was 6.9° (⌠=4.62°) with a maximum slope of 19.2° (i.e. anterior orientation) and a minimum of -3.3° (i.e. posterior orientation). The uninjured population had an average ADTA of 6.0° (range -2.0°-14°, ⌠=3.0°).
CONCLUSIONS: This analysis shows the average distal tibia sagittal alignment in the post-surgical group is similar to a normal, uninjured population. Large alterations in ADTA would directly impact the ankle in the plane of motion (i.e. negative ADTA would decrease ankle dorsiflexion). Considering ADTA as an objective intra-operative parameter optimizes sagittal plane alignment.
方法:对胫骨远端手术骨折(AO/OTA分类43A和43C-43B被排除,因为骨折改变ADTA的可能性较低)进行回顾性回顾。横向X光片上的ADTA测量为相对于胫骨轴的角度。
结果:分析了100例符合纳入标准的术后X线片患者。平均ADTA为6.9°(=4.62°),最大斜率为19.2°(即前向),最小值为-3.3°(即后向)。未受伤人群的平均ADTA为6.0°(范围-2.0°-14°,
结论:该分析显示,术后组胫骨远端矢状位的平均排列与正常,未受伤的人口。ADTA的较大改变将直接影响运动平面中的踝关节(即,负ADTA将减少踝关节背屈)。将ADTA视为客观的术中参数可优化矢状平面对齐。