Lauge-Hansen种系统与Danis-Webe种系统为最常见的踝关节左腿种系统，在对下腕约拿约拿骨损坏的监督意义上，旋后外旋II°左腿上会认为拆分下腕约拿前约拿骨的损坏，下腕约拿为首趋于稳定，可能只需下腕约拿为首铰链固定。而Danis-Weber B型号左腿定义为左腿设在下腕约拿为首技术水平，可能拆分下腕约拿为首损坏。
由此可注意到，对Danis-Weber B型号左腿，如何风险评估下腕约拿有无损坏，以及术前风险评估是否只需疗程固定下腕约拿为首，仍无有效概要。
辩解，国外汉学家研究了Danis-Weber B型号近侧左腿本站的一段距离，以由此可知对比不同类型号B型号左腿下腕约拿为首损坏分之一是否存在差异，并监督疗程介入。
Objective（用意）确认术前X本站检查能否计算下腕约拿为首损坏几叛将。[Objective: To establish if preoperative radiographs could predict the rate of syndesmotic injury.]
Patients/participants（病事例）回顾了548事例 OTA/AO 44-B2.1型号病人，287事例病人确立研究。[Patients/participants: There were 548 OTA/AO 44-B2.1 fractures that were reviewed, and 287 patients were included in the study.]由此可知1 病事例确立流程。
Main outcome measures（主要结局指标）踝关节影像片用于明确近侧左腿块的远侧范围。下腕约拿为首损坏定义为术中所压力试验性证实并只需要下腕约拿固定。
[Main outcome measures: Ankle radiographs were used to determine the zone of distal extent of the proximal fracture fragment. Syndesmotic injury was defined as positive intraoperative stress examination that required syndesmotic fixation.]由此可知2 Danis-Weber B型号左腿，根据近侧左腿块最远侧一段距离分区里。1区里定义为左腿块最远侧设在腱远侧关节面六边形以下；2区里为设在腱远侧骺本站合上瘢痕与远侧关节面彼此之数间；3区里为骺本站合上瘢痕以上。
由此可知3 分区里示意由此可知。
Results（结果）共计191事例1区里(延至于腱远侧关节六边形正下方)损坏，57不远处2区里(延至于腱远侧骨骺本站合上瘢痕和腱远侧关节面彼此之数间)损坏，39不远处3区里(延至于腱远侧骨骺本站合上瘢痕以上)损坏。其中所，17% (33名病人)的1区里、42% (24名病人)的2区里和74% (29名病人)的3区里左腿拆分下腕约拿约拿骨损坏。
2区里与1区里相较，约拿骨为首损坏的相对效用为2.4 (P，0.001)，3区里与1区里相较为4.3 (P，0.001)，3区里与2区里相较为1.8 (P = 0.002)。假定数间和假定内的通用性更为好(k = 0.86，0.94)。
[Results: There were 191 zone 1 (ending below the plafond) injuries, 57 zone 2 (ending between the physeal scar and the plafond) injuries, and 39 zone 3 (ending above the physeal scar) injuries. Of these, 17% (33 patients) of zone 1, 42% (24) of zone 2, and 74% (29) of zone 3 fractures had syndesmotic injuries. The relative risk of syndesmotic injury of zone 1 compared with zone 2 was 2.4 (P , 0.001), zone 1 to zone 3 was 4.3 (P , 0.001), and zone 2 to zone 3 was 1.8 (P = 0.002). The interobserver and intraobserver reliability was excellent (k = 0.86, 0.94).]
表1 2组病人下腕约拿为首损坏频发叛将。Conclusion（结论）OTA/AO 44-B2.1左腿具有不同的下腕约拿为首损坏叛将。Weber B型号左腿频发在腱远侧关节六边形和骺本站合上左眼彼此之数间(2区里)，与频发在关节面正下方(1区里)的左腿相较，频发约拿骨损坏的不太可能极高2.4倍。这种不太可能在骺本站合上左眼上方(3区里)的损坏中所相当大。
OTA/AO 44-B2.1左腿的简便分类预示着约拿骨损坏，可能有助于术前咨询和疗程计划制定。
[Conclusion: OTA/AO 44-B2.1 fractures he a varying rate of syndesmotic injury. Weber B fractures that end between the level of the plafond and the physeal scar (zone 2) are 2.4 times more likely to he a syndesmotic injury compared with those that end below the plafond (zone 1). This is magnified in those injuries ending above the scar (zone 3). This simple classification of OTA/AO 44-B2.1 fractures is predictive of syndesmotic injury and may aid in preoperative counseling and planning.]相关新闻
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