OBJECTIVE  The aim of this study was to compare radiographic outcomes of open reduction versus fluoroscopic-guided closed reduction (FGCR) of sacroiliac fracture-luxations stabilized with a lag screw, as well as peri- and postoperative complications. STUDY DESIGN  Medical records (2010-2015) and radiographs of dogs and cats diagnosed with sacroiliac fracture-luxation that underwent open reduction without fluoroscopic guidance (n = 24) or FGCR (n = 17) were retrospectively reviewed to assess sacroiliac fracture-luxation reduction and lag screw placement, and lag screw loosening on follow-up radiographs (range, 1-8 weeks postoperatively) when available. Peri- and postoperative complications were also recorded. RESULTS  Optimal screw depth to sacral body width ratio (>60%) was achieved in a significantly higher proportion of FGCR cases than openly reduced fracture-luxations. A significantly lower rate of lag screw loosening was found for FGCR cases. Few peri- and postoperative complications were noted across both groups. Four out of 17 FGCR cases requiring conversion to an open approach were excluded from data analysis; they had a longer duration from trauma to surgical repair than the median duration from trauma to surgical repair for cases successfully reduced in closed fashion. CONCLUSION  Fluoroscopic-guided closed reduction of sacroiliac fracture-luxations leads to consistently more optimal screw placement, as well as a lower incidence of lag screw loosening on follow-up radiographs. However, for cases with a longer duration from trauma to surgical repair, one should be prepared to convert to an open approach if a closed approach is not amenable to adequate reduction and lag screw placement.

中文翻译：

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荧光镜引导的闭合复位与开放复位对La钉固定后Sa骨折-增高手术的疗效。

目的本研究的目的是比较用拉力螺钉稳定的sa骨fracture脱骨折的切开复位术与透视引导下的闭合复位术（FGCR）的影像学结果，以及围手术期和术后并发症。研究设计回顾性地回顾了经诊断未行透视复位（无荧光透视引导（n = 24）或FGCR（n = 17））行sa复位骨折的ation猫和and猫的病历（2010-2015）和X光片，以评估sa复位骨折的程度（如果有的话），并在后续的X线照片上（手术后1-8周）松开拉钉。还记录了围手术期和术后并发症。结果最佳螺钉深度与骨宽度之比（> 与公开减少的骨折脱位相比，FGCR病例的比例明显更高（达到60％）。对于FGCR病例，发现拉紧螺钉的松动率明显降低。在两组中，几乎没有发现围手术期和术后并发症。在17个需要转换为开放方法的FGCR案例中，有4个被排除在数据分析之外；对于以封闭方式成功减少的病例，他们从创伤到手术修复的持续时间比从创伤到手术修复的平均持续时间更长。结论荧光镜引导下closed骨骨折脱位的闭合复位可导致始终如一的最佳螺钉放置，并且在后续的X线照片上，滞后螺钉松动的发生率更低。但是，对于从创伤到手术修复的持续时间较长的情况，