Sandgren B
Swedish University of Agricultural Sciences, Veterinary Institute, Skara, Sweden.
Equine Vet J Suppl. 1988 Sep(6):66-70. doi: 10.1111/j.2042-3306.1988.tb04650.x.
Radiographic examination of the tarsocrural, metacarpo- or metatarsophalangeal joints was made in 139 Standardbred horses. Most were under three years old with no history of orthopaedic problems. In the tarsocrural joint, osteochondrosis was observed in 25 (18.1 percent) of the horses (n = 138) and 14 (56 percent) of these were affected bilaterally. In the metatarsophalangeal joint, the most frequent radiographic abnormality was single or multiple bony fragments or defects at the plantar proximal end of the proximal phalanx, which was noticed in 40 (28.8 percent) of the horses (n = 139). The lesion was much more frequent in the hind than in the forelimbs. Ten percent of horses affected in the hindlimbs had the lesions bilaterally. Palmar or plantar fragments wee also more common in the medial, than the lateral, part of the joint. With regard to osteochondrosis in the tarsocrural joint and palmar or plantar bony fragments in the metacarpo- or metatarsophalangeal joints, no significant differences in incidence were found between sexes or between left and right sides. There was no correlation between findings of osteochondrosis in the tarsocrural joints and the occurrence of bony fragments in the plantar part of the metatarsophalangeal joints. In the forelimbs, bony fragments in the dorsal parts of the metacarpophalangeal joint were noticed in three (2.9 percent) of the horse (n = 103) and the corresponding figure for the metatarsophalangeal joint was three (2.2 percent) (n = 139). In 102 horses, the tarsocrural, the metacarpo- and the metatarsophalangeal joints were radiographed at the same time. One or several joints were affected with osteochondrosis, bony fragments, or defects in underlying bones in 45 (44.1 percent) of these horses.
对139匹标准赛马的跗关节、掌指关节或跖趾关节进行了X线检查。大多数马年龄在3岁以下，无骨科疾病史。在跗关节中，138匹马中有25匹（18.1%）观察到骨软骨病，其中14匹（56%）双侧受累。在跖趾关节中，最常见的X线异常是近节趾骨跖侧近端的单个或多个骨碎片或缺损，139匹马中有40匹（28.8%）出现这种情况。该病变在后肢比前肢更常见。后肢受累的马中有10%双侧有病变。掌侧或跖侧碎片在关节内侧比外侧也更常见。关于跗关节的骨软骨病以及掌指关节或跖趾关节的掌侧或跖侧骨碎片，在性别之间或左右侧之间未发现发病率有显著差异。跗关节的骨软骨病表现与跖趾关节跖侧骨碎片的发生之间没有相关性。在前肢中，103匹马中有3匹（2.9%）在掌指关节背侧发现骨碎片，跖趾关节的相应数字为3匹（2.2%）（n = 139）。对102匹马同时进行了跗关节、掌指关节和跖趾关节的X线检查。其中45匹（44.1%）的一匹或几处关节有骨软骨病、骨碎片或潜在骨骼的缺损。
