University Veterinary Teaching Hospital Sydney, Sydney School of Veterinary Science, University of Sydney, NSW, 2006, Australia.
United States Army Veterinary Medical Corps, Washington, Dist. of Columbia, United States.
Vet Comp Orthop Traumatol. 2021 Nov;34(6):427-436. doi: 10.1055/s-0041-1735647. Epub 2021 Oct 1.
To describe the dorsal laminectomy, annulectomy and distraction stabilization with pins and polymethylmethacrylate technique, its complications and outcome in the management of canine degenerative lumbosacral stenosis. To determine pre- and post-surgical foraminal width and vertebral step changes.
Multi-institutional retrospective clinical study.
Medical records (2005-2020) of dogs treated ( = 30). Clinical signs, Modified Frankel Score, Texas Spinal Cord Injury Score, pain score (dorsal palpation of spine, tail dorsiflexion), imaging findings and complications were retrieved pre-operatively, perioperatively and at long-term follow-up.
The most common presurgical imaging findings were disc protrusion (24/25) and sclerosis of the caudal end-plate of L7 (23/30). On short- to long-term assessment 18 out of 21 dogs exhibited clinical improvement and all exhibited improved pain scores ( < 0.0001). Catastrophic complications occurred in 3 dogs, and major complications occurred in 5, of which 3 required additional surgery. Mean lumbosacral step defect reduced 60% (1.8 mm ± 2.5 mm pre-surgery to 0.7mm ± 0.9mm post-surgery, = 0.1585). Mean foraminal width significantly increased 50% long-term (3.3 mm ± 1.0 mm pre-surgery to 5.0 mm ± 0.9 mm post-surgery, < 0.0001).
Dorsal laminectomy, annulectomy and distraction stabilization is a complex procedure which can significantly increase foraminal width, reduce pain and improve gait characteristics in dogs in the short- to long-term, and should be performed by surgeons experienced in lumbosacral pin placement.
描述犬退行性腰骶管狭窄症后路椎板切除术、环锯切除术和用针与聚甲基丙烯酸甲酯撑开固定技术，及其并发症和治疗结果。确定术前和术后椎间孔宽度和椎体台阶变化。
多机构回顾性临床研究。
回顾性分析 2005 年至 2020 年期间接受治疗的（ = 30）犬的病历。术前、术中和长期随访时，检索临床症状、改良 Frankel 评分、德克萨斯州脊髓损伤评分、疼痛评分（脊柱背侧触诊、尾巴背屈）、影像学发现和并发症。
最常见的术前影像学发现是椎间盘突出（24/25）和 L7 尾侧终板硬化（23/30）。在短期至长期评估中，21 只狗中有 18 只表现出临床改善，所有狗都表现出疼痛评分改善（ < 0.0001）。3 只狗发生灾难性并发症，5 只狗发生严重并发症，其中 3 只需要进一步手术。腰骶台阶缺陷平均减少 60%（术前 1.8 mm ± 2.5 mm，术后 0.7mm ± 0.9mm， = 0.1585）。长期随访时椎间孔宽度显著增加 50%（术前 3.3 mm ± 1.0 mm，术后 5.0 mm ± 0.9 mm， < 0.0001）。
后路椎板切除术、环锯切除术和撑开固定术是一种复杂的手术，可以在短期内显著增加椎间孔宽度，减轻疼痛，改善犬的步态特征，长期效果良好，应由经验丰富的腰骶部针固定术外科医生来操作。
