Pinna Stefania, Lanzi Francesco, Tassani Chiara, Mian Giacomo
Department of Veterinary Medical Sciences, Alma Mater Studiorum, University of Bologna, 40064, Ozzano E., Bologna, Italy.
J Vet Sci. 2020 Sep;21(5):e53. doi: 10.4142/jvs.2020.21.e53.
The TightRope System is a device developed to provide extracapsular stabilization of the cranial cruciate ligament (CCL) rupture in canine stifles. I was then also employed for the extra-articular treatment of shoulder instability and for the intra-articular treatment of hip luxation in dogs and cats.
To evaluate the feasibility of the Mini-TightRope (mTR) System for the intra-articular treatment of CCL rupture in small breed dogs.
A cadaveric canine model was used to record the steps of the surgical procedure. Five client owned dogs weighing from 8 to 10 kg and from 2 to 12 years of age were enrolled in the prospective study in which the mTR device was implanted in the stifle joint to replace the ruptured CCL. The dogs were graded using the Bologna Healing Stifle Injury Index (BHSII) and radiographic osteoarthritis (OA) scores.
The outcomes obtained at the time of the surgery (T0) and for the following 12 months (T12) showed an improvement in the functional parameters (BHSII from a median of 74.3 [range, 58.1-82.4] at T0 to 95.6 [range, 94.1-99.3] at T12]). The OA did not change in 3 dogs and increased by only 1 point in 2 dogs.
In this preliminary study, the mTR was a successful and repeatable intra-articular surgical procedure for all dogs. Additional studies related to the clinical application of the technique in medium-large dogs should be encouraged.
TightRope系统是一种为犬膝关节颅侧十字韧带（CCL）断裂提供关节外稳定作用而研发的装置。随后它也被用于犬猫肩关节不稳定的关节外治疗以及髋关节脱位的关节内治疗。
评估Mini-TightRope（mTR）系统用于小型犬CCL断裂关节内治疗的可行性。
使用尸体犬模型记录手术步骤。5只体重8至10千克、年龄2至12岁的客户拥有的犬被纳入前瞻性研究，其中将mTR装置植入膝关节以替代断裂的CCL。使用博洛尼亚愈合性膝关节损伤指数（BHSII）和放射影像学骨关节炎（OA）评分对犬进行分级。
手术时（T0）及随后12个月（T12）获得的结果显示功能参数有所改善（BHSII从T0时的中位数74.3[范围，58.1 - 82.4]提高到T12时的95.6[范围，94.1 - 99.3]）。3只犬的OA未变化，2只犬仅增加了1分。
在这项初步研究中，mTR对所有犬来说是一种成功且可重复的关节内手术方法。应鼓励开展与该技术在中大型犬临床应用相关的更多研究。
