Bezhentseva Alla, Singh Harpreet, Boudrieau Randy J
Department of Clinical Sciences, Cummings School of Veterinary Medicine at Tufts University, North Grafton, Massachusetts, United States.
Vet Comp Orthop Traumatol. 2018 Sep;31(5):379-384. doi: 10.1055/s-0038-1651518. Epub 2018 Jun 20.
This article describes corrective antebrachiocarpal re-alignment and arthrodesis for bilateral radial hemimelia (radial agenesis) in an 8-month-old domestic short-haired cat.
Bilateral forelimb deformity of ulnocarpal varus with complete luxation and rotation of the antebrachiocarpal joint spaces, and joint contracture, was observed. Several carpal bones and metacarpal bones I and II and their associated phalanges were absent. Abnormal ambulation and weight bearing on the dorsolateral part of the were present. The deformities were treated by bilateral distal ulnar ostectomy and ulnocarpal arthrodesis using a 2.0-mm locking compression plate applied with hybrid fixation and allograft.
Successful deformity correction was obtained with subsequent fusion of the antebrachiocarpal joints. No complications were observed. At long-term follow-up (4.75 years), there was good-to-excellent functional result, with approximately 15° internal rotation of the right forelimb and shortened stride with slight circumduction and lameness. All implants remained stable and continued bone remodelling was present. The cat was assessed to have good-to-excellent short- and long-term functional results with excellent owner satisfaction.
Treatment of radial agenesis in the cat has previously been limited to conservative management or limb amputation. While there are several reports of corrective limb-sparing procedures used to treat dogs, this is the first report of a cat with successful salvage corrective surgery.
本文描述了一只8个月大的家养短毛猫双侧桡骨半肢畸形（桡骨发育不全）的矫正性前臂腕关节重新对线和关节融合术。
观察到双侧前肢尺腕内翻畸形，伴有前臂腕关节间隙完全脱位和旋转，以及关节挛缩。几块腕骨、第一和第二掌骨及其相关指骨缺失。在背外侧部分存在异常行走和负重。通过双侧尺骨远端截骨术和尺腕关节融合术治疗畸形，使用2.0毫米锁定加压钢板进行混合固定和同种异体移植。
成功矫正了畸形，随后前臂腕关节融合。未观察到并发症。在长期随访（4.75年）中，功能结果良好至优秀，右前肢有大约15°的内旋，步幅缩短，伴有轻微的环行和跛行。所有植入物保持稳定，持续有骨重塑。评估该猫的短期和长期功能结果良好至优秀，主人满意度高。
猫桡骨发育不全的治疗以前仅限于保守治疗或肢体截肢。虽然有几篇关于用于治疗犬的保留肢体矫正手术的报道，但这是第一例成功进行挽救性矫正手术的猫的报道。
