Department of Veterinary Sciences, University of Messina, Viale Palatucci s.n.c, 98168, Messina, Italy.
Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", Via Gino Marinuzzi 3, 90100, Palermo, Italy.
BMC Vet Res. 2021 May 13;17(1):193. doi: 10.1186/s12917-021-02899-6.
The partial or complete cranial cruciate ligament rupture is a common skeletal disease affecting the stifle joint in dogs. The tibial plateau levelling osteotomy, performed with several synthesis systems, changed the approach to its treatment in dogs. The aim of this study was to compare two types of fixation implants, locking compression system and locking system, evaluating radiographically the progression of osteoarthritis of the stifle joint in dogs with complete cranial cruciate ligament deficiency treated surgically with tibial plateau levelling osteotomy. Moreover, we evaluated bone healing and lameness scores to show biomechanical effects by the implant used. Twenty-eight dogs, who met the inclusion criteria, were divided into two groups. Group A: 14 dogs treated using locking compression plates; Group B: 14 dogs treated using locking plates. Radiographic osteoarthritis scores were evaluated up to 1 year following tibial plateau levelling osteotomy. At each visit, animals were clinically and radiographically assessed. Each dog was evaluated before (T0) and after two (T2) and twelve (T12) months after the surgery. At T2 the stage of bone healing was evaluated. The clinical follow up was performed before the surgery and at 10, 15 and 20 days after the surgery, grading the lameness at walk and trot.
An increase in osteoarthritis score at T12 versus T0 in both groups was detected. A decrease of the lameness score was observed in Group A versus Group B. The healing score system at T2 showed a lower score in Group A versus Group B.
The osteoarthritis score following tibial plateau levelling osteotomy did not differ when comparing the two different fixation systems. The locking compression system allowed a more rapid functional recovery of the limb and a quicker bone healing than the locking system. Locking compression system should be carefully considered for dogs subjected to tibial plateau levelling osteotomy surgery, because it may reduce the recovery time.
部分或完全前十字韧带断裂是一种常见的影响犬膝关节的骨骼疾病。胫骨平台倾斜截骨术，通过几种综合系统进行，改变了犬前十字韧带断裂的治疗方法。本研究的目的是比较两种固定植入物，锁定加压系统和锁定系统，通过植入物评估胫骨平台倾斜截骨术治疗完全前十字韧带缺失的犬的膝关节退行性关节炎的进展。此外，我们还评估了骨愈合和跛行评分，以显示植入物的生物力学效应。28 只符合纳入标准的狗被分为两组。A 组：14 只狗使用锁定加压板治疗；B 组：14 只狗使用锁定板治疗。在胫骨平台倾斜截骨术后 1 年进行放射学骨关节炎评分评估。每次就诊时，对动物进行临床和放射学评估。每只狗在手术前（T0）、手术后 2 个月（T2）和 12 个月（T12）进行评估。在 T2 时评估骨愈合阶段。在手术前和手术后 10、15 和 20 天进行临床随访，对行走和小跑时的跛行进行分级。
两组在 T12 时的骨关节炎评分均较 T0 时增加。与 B 组相比，A 组的跛行评分下降。T2 时的愈合评分系统显示 A 组的评分低于 B 组。
比较两种不同固定系统时，胫骨平台倾斜截骨术后的骨关节炎评分无差异。与锁定系统相比，锁定加压系统允许更快的肢体功能恢复和更快的骨愈合。对于接受胫骨平台倾斜截骨术的犬，应仔细考虑使用锁定加压系统，因为它可能会缩短恢复时间。
