Johnson K A, Dee J F, Piermattei D L
Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins 80523.
J Am Vet Med Assoc. 1989 Jun 1;194(11):1618-25.
Fractures of the accessory carpal bone in 12 racing Greyhounds were repaired by use of internal fixation with screws. All dogs had a sprain-avulsion fracture of the distal margin of the articular surface of the accessory carpal bone, where the accessorioulnar ligament inserts (type I). Two dogs had a second avulsion fracture at the proximal margin of the articular surface, where the palmar ulnocarpal ligament inserts (type II), and 2 dogs had a second fracture at the caudal end of the bone at the insertion of the accessoriometacarpal ligaments (type III). Fractures were exposed surgically, using a palmarolateral approach between the fourth and fifth accessoriometacarpal ligaments, and were repaired using 1.5-mm or 2-mm cortical screws. Eight dogs were evaluated radiographically to monitor fracture healing. Union of fractures, with bridging of the fracture gap, usually developed by 5 to 8 weeks after surgery. Follow-up evaluation after surgical repair was possible in 11 dogs; 10 (91%) returned to training or racing, and 5 (45%) of those won 1 or more races.
12只赛犬的副腕骨骨折采用螺钉内固定进行修复。所有犬均为副腕骨关节面远侧缘的扭伤性撕脱骨折，尺侧副韧带附着于此（I型）。2只犬在关节面近侧缘出现了第二处撕脱骨折，掌侧尺腕韧带附着于此（II型），2只犬在副腕骨尾端副掌骨韧带附着处出现了第二处骨折（III型）。采用第四和第五副掌骨韧带之间的掌外侧入路进行手术暴露骨折，并使用1.5毫米或2毫米的皮质骨螺钉进行修复。8只犬接受了X线检查以监测骨折愈合情况。骨折通常在术后5至8周实现愈合，骨折间隙出现骨桥连接。11只犬术后接受了随访评估；其中10只（91%）恢复训练或比赛，5只（45%）赢得了1场或更多比赛。
