Laboratory of Veterinary Surgery, Department of Veterinary Science, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.
Platon Japan Co, Ltd, Tokyo, Japan.
J Feline Med Surg. 2024 Oct;26(10):1098612X241276393. doi: 10.1177/1098612X241276393.
The aim of this study was to assess the efficacy of pelvic osteotomy and ventral fixation of the ischium using cortical screws and polymethylmethacrylate (PMMA) for feline pelvic canal stenosis (PCS) associated with malunion after conservative management of pelvic fractures.
Surgical pelvic enlargement was performed for PCS in six cats. The medical records, including information on the patients, surgical procedures, defecation and complications, were reviewed. The sacral index (SI) and colonic:lumbar:vertebral ratio (CLVR) were evaluated based on pre- and postoperative radiographs.
This study included five castrated male cats and one spayed female cat. Postoperative improvements in constipation and defecatory difficulty were noted in all cases. The postoperative SI was significantly higher (mean 0.93, range 0.72-1.13) than the preoperative SI (mean 0.59, range 0.45-0.74) ( <0.001). However, no statistically significant change was found in the CLVR preoperatively and up to 3 months postoperatively. A successful union of the ilium was observed, without implant failures. One case developed necrosis of the pubic surgical wound.
This study indicated the potential benefits of pelvic osteotomy and ventral fixation of the pelvic floor using screws and PMMA for achieving pelvic cavity enlargement in treating feline PCS associated with defecatory problems.
本研究旨在评估骨盆切开术和坐骨皮质螺钉及聚甲基丙烯酸甲酯（PMMA）腹侧固定治疗骨盆骨折保守治疗后畸形愈合所致猫骨盆管狭窄（PCS）伴排便困难的疗效。
对 6 只猫进行了骨盆扩大手术。回顾了包括患者、手术程序、排便和并发症在内的病历资料。根据术前和术后 X 线片评估骶骨指数（SI）和结肠：腰椎：椎体比（CLVR）。
本研究包括 5 只去势雄性猫和 1 只去势雌性猫。所有病例均有便秘和排便困难改善。术后 SI 明显升高（均值 0.93，范围 0.72-1.13），术前 SI （均值 0.59，范围 0.45-0.74）（<0.001）。然而，术前和术后 3 个月的 CLVR 无统计学显著变化。观察到髂骨的成功愈合，无植入物失败。1 例耻骨手术切口发生坏死。
本研究表明，骨盆切开术和骨盆底皮质螺钉及 PMMA 腹侧固定术可能有助于扩大骨盆腔，治疗猫 PCS 伴排便问题。
