Pinna Stefania, Tassani Chiara, Di Benedetto Matteo
Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano dell'Emilia, Bologna, Italy.
Animals (Basel). 2024 Feb 8;14(4):577. doi: 10.3390/ani14040577.
This case report describes a novel procedure using the Isolock Intrauma implant system for treating medial instability of the carpometacarpal and tarsometatarsal joints, as demonstrated in in two dogs. A 9-year-old spayed female Spanish greyhound presented with a non-weight-bearing right hindlimb following a trauma. The clinical and radiological findings confirmed medial tarsometatarsal instability consistent with valgus deviation of the tarsus and the opening of the joint line on the medial aspect from the first to the third tarsometatarsal joints. A 4-year-old female Drahthaar presented with a non-weight-bearing left forelimb, swelling of the carpus and valgus instability. Radiological examination revealed a widening of the spaces between the intermedioradial carpal bone, second carpal bone and metacarpal bone II, confirming the medial carpometacarpal instability. In both cases, the Isolock system, an implant including ultra-high-molecular-weight polyethylene suture (UHMWPE), was used to reinforce the medial joint structures. Minor short-term complications were observed, such as swelling of the tarsal surgical site and hyperextension of the carpus, but these resolved spontaneously. No lameness or major complications were reported five months postoperatively. Carpometacarpal and tarsometatarsal instabilities are rare diseases in dogs as compared to subluxations of the other joints of the carpus and tarsus. There are no previous reports regarding the use of a UHMPWE implant for the treatment of these rare joint injuries, though the present case report suggests the validity and efficacy of the Isolock Intrauma implant for restoring carpal and tarsal stability and preserving joint mobility.
本病例报告描述了一种使用Isolock Intrauma植入系统治疗腕掌关节和跗跖关节内侧不稳定的新方法，两只犬的病例证明了该方法的有效性。一只9岁已绝育的雌性西班牙灵缇犬在创伤后出现右后肢不能负重。临床和放射学检查结果证实跗跖关节内侧不稳定，表现为跗骨外翻畸形以及从第一到第三跗跖关节内侧关节间隙增宽。一只4岁雌性德国刚毛指示犬出现左前肢不能负重、腕关节肿胀和外翻不稳定。放射学检查显示桡腕中间骨、第二腕骨和第二掌骨之间的间隙增宽，证实了腕掌关节内侧不稳定。在这两个病例中，均使用了包括超高分子量聚乙烯缝线（UHMWPE）的Isolock系统来加强关节内侧结构。观察到了一些轻微的短期并发症，如跗骨手术部位肿胀和腕关节过度伸展，但这些并发症均自行缓解。术后五个月未报告跛行或严重并发症。与腕关节和跗关节其他关节的半脱位相比，腕掌关节和跗跖关节不稳定在犬中是罕见疾病。尽管目前的病例报告表明Isolock Intrauma植入物在恢复腕关节和跗关节稳定性以及保持关节活动度方面的有效性和疗效，但此前尚无关于使用UHMPWE植入物治疗这些罕见关节损伤的报道。
