Tonks Catherine A, Tomlinson James L, Cook James L
College of Veterinary Medicine, University of Missouri-Columbia, Columbia, MO, USA.
Vet Surg. 2008 Oct;37(7):603-7. doi: 10.1111/j.1532-950X.2008.00414.x.
To evaluate outcome by radiographic assessment after closed reduction and percutaneous screw fixation in lag fashion of sacroiliac fracture-luxations in dogs.
Retrospective study.
Dogs (n=24) with sacroiliac fracture-luxations.
Medical records (1999-2006) and radiographs of 24 dogs (29 fracture-luxations) that had stabilization of sacroiliac fracture-luxation by fluoroscopic-guided closed reduction and percutaneous screw fixation in lag fashion were reviewed. Signalment, body weight, number, and location of all concurrent injuries and implants used for repair were recorded. Radiographs were used to evaluate the accuracy of screw placement in the sacral body, screw depth/sacral width ratio, reduction of the sacroiliac joint, pelvic canal diameter, and hemipelvic canal width. Radiographic re-examination (range, 4 to >8 weeks postoperatively) was available for evaluation.
Mean screw depth/sacral width ratio on immediate postoperative and re-examination radiographs was 64% and 61%, respectively. Mean percentage reduction of the sacroiliac joint on immediate postoperative and re-examination radiographs were 91% and 87%, respectively. Pelvic canal diameter ratio demonstrated successful restoration of the pelvic canal. Hemipelvic canal width ratio documented successful closed reduction repair independent of concurrent pelvic injuries.
Successful repair of sacroiliac fracture-luxations, determined by radiographic assessment, can be achieved by fluoroscopic-guided closed reduction and percutaneous screw fixation in lag fashion.
Fluoroscopic-guided closed reduction and percutaneous screw fixation in lag fashion of sacroiliac fracture-luxations is a minimally invasive technique that restores and maintains pelvic canal dimensions and should be considered as an alternative to open reduction or nonsurgical management of sacroiliac fracture-luxations.
通过X线评估犬骶髂关节骨折脱位闭合复位及经皮拉力螺钉固定后的疗效。
回顾性研究。
患有骶髂关节骨折脱位的犬（n = 24）。
回顾1999年至2006年间24只犬（29处骨折脱位）的病历及X线片，这些犬经X线透视引导下闭合复位及经皮拉力螺钉固定治疗骶髂关节骨折脱位。记录信号、体重、所有并发损伤的数量和位置以及用于修复的植入物。使用X线片评估螺钉在骶骨体内的置入准确性、螺钉深度/骶骨宽度比值、骶髂关节复位情况、骨盆管直径及半骨盆管宽度。可获得术后4至8周以上的X线复查片用于评估。
术后即刻及复查X线片上螺钉深度/骶骨宽度比值的平均值分别为64%和61%。术后即刻及复查X线片上骶髂关节复位的平均百分比分别为91%和87%。骨盆管直径比值显示骨盆管成功恢复。半骨盆管宽度比值表明无论是否并发骨盆损伤，闭合复位修复均成功。
通过X线评估确定，骶髂关节骨折脱位可经X线透视引导下闭合复位及经皮拉力螺钉固定成功修复。
X线透视引导下骶髂关节骨折脱位的闭合复位及经皮拉力螺钉固定是一种微创技术，可恢复并维持骨盆管尺寸，应被视为骶髂关节骨折脱位切开复位或非手术治疗的替代方法。
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