Small Animal Surgery Department, Veterinary Hospital, Oniris College of Veterinary Medicine Food Science and Engineering, Nantes, France.
SeineVet Veterinary Clinic, Boos, France.
Vet Surg. 2024 May;53(4):603-612. doi: 10.1111/vsu.14070. Epub 2024 Jan 19.
To describe fluoroscopically-assisted closed reduction and percutaneous fixation of sacroiliac-luxation (SIL) in cats and report radiographic results and long-term functional outcomes.
Retrospective clinical study.
Eleven cats.
Percutaneous fixation of 17 SILs in 11 cats was performed with 2.4 mm headless cannulated compression screws under fluoroscopic guidance. Luxation-reduction, screw placement and purchase within the sacral body, pelvic canal diameter ratio (PCDR) and hemipelvic canal width ratio (HCWR) were assessed on pre- and postoperative radiographs. Radiographic follow-up was performed to assess the same parameters when available. Long-term clinical outcome was evaluated with an owner questionnaire. Wilcoxon paired-test was performed for comparison.
Mean age and bodyweight of the cats were 3.3 ± 2.6 years and 4.0 ± 0.82 kg, respectively. Nine cats presented with concurrent pelvic injuries. Median luxation-reduction was 94.1% (IQR = 13.9) and median screw-purchase within the sacral body was 73.3% (IQR = 17.0) immediately postoperatively. One screw exited the sacral body caudally. Upon 7-week radiographic follow-up, luxation-reduction (88.3%, IQR = 20.1) and screw-purchase (70.7%, IQR = 12.8) had decreased compared to immediately postoperatively (p = .008 and p = .013 respectively). Screw migration was not observed. PCDR and HCWR measured on postoperative radiographs indicated successful restoration of the pelvic canal width. Owners reported an excellent long-term functional outcome (mean postoperative time: 19 ± 5 months).
Fluoroscopically-assisted closed reduction and fixation of feline SIL using 2.4 mm headless cannulated compression screws allowed good reduction and optimal screw purchase within the sacral body. An excellent functional outcome was reported.
Minimally invasive reduction and fixation with headless compression screws should be considered in cats with SIL.
描述猫的经荧光透视辅助闭合复位和经皮固定骶髂关节脱位（SIL），并报告放射学结果和长期功能结果。
回顾性临床研究。
11 只猫。
在 11 只猫的 17 个 SIL 中，在荧光透视引导下使用 2.4mm 无头空心加压螺钉进行经皮固定。在术前和术后 X 线片上评估脱位复位、螺钉在骶骨内的放置和固定、骨盆管直径比（PCDR）和半骨盆管宽度比（HCWR）。在有条件的情况下，进行放射学随访以评估相同的参数。通过业主问卷调查评估长期临床结果。采用 Wilcoxon 配对检验进行比较。
猫的平均年龄和体重分别为 3.3±2.6 岁和 4.0±0.82kg。9 只猫同时伴有骨盆损伤。中位数脱位复位为 94.1%（IQR=13.9），术后中位数螺钉在骶骨内的固定为 73.3%（IQR=17.0）。一根螺钉从骶骨尾部穿出。在 7 周的放射学随访中，与术后即刻相比，脱位复位（88.3%，IQR=20.1）和螺钉固定（70.7%，IQR=12.8）均有所下降（p=0.008 和 p=0.013）。未观察到螺钉迁移。术后 X 线片上的 PCDR 和 HCWR 表明骨盆管宽度得到成功恢复。业主报告了极好的长期功能结果（平均术后时间：19±5 个月）。
使用 2.4mm 无头空心加压螺钉经荧光透视辅助闭合复位和固定猫的 SIL 可实现良好的复位和最佳的骶骨内螺钉固定。报告了极好的功能结果。
对于 SIL 猫，应考虑使用微创复位和无头加压螺钉固定。
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