Peloso J G, Cohen N D, Walker M A, Watkins J P, Gayle J M, Moyer W
Department of Large Animal Medicine and Surgery, College of Veterinary Medicine, Texas A&M University, College Station 77843-4475, USA.
J Am Vet Med Assoc. 1996 Nov 15;209(10):1746-9.
To identify risk factors associated with development of laminitis of the supporting limb in Equidae with unilateral laminitis and to determine the radiographic appearance of this type of laminitis.
Retrospective analysis of medical records.
20 Equidae with unilateral lameness that developed laminitis of the contralateral limb.
Case animals were compared with matched and unmatched populations of control animals that did not develop contralateral limb laminitis. Lateromedial radiographic projections of affected feet were evaluated for evidence of laminitis.
Body weight of case animals was not significantly different from that of control animals, but number of days that control animals were lame prior to recovery was significantly less than number of days that case animals were lame prior to the onset of laminitis. Lateromedial radiographic projections of the foot of the support limb were available for 16 of the 20 case animals. For all 16, thickness of the soft tissue dorsal to the distal phalanx was > 29% of the palmar cortical length of the distal phalanx, but only 1 had evidence of rotation of the distal phalanx. The proportion of case animals that were euthanatized was significantly greater than the proportion of control animals that were euthanatized.
Duration of lameness, but not body weight, was a risk factor for development of laminitis in the contralateral limb in Equidae with unilateral lameness, and animals that developed this complication were more likely to be euthanatized than were animals that did not.
确定单侧蹄叶炎马属动物中患侧支肢蹄叶炎发生的相关危险因素，并确定此类蹄叶炎的放射影像学表现。
病历回顾性分析。
20匹患单侧跛行且对侧肢发生蹄叶炎的马属动物。
将病例动物与未发生对侧肢蹄叶炎的匹配及不匹配对照动物群体进行比较。对患蹄的内外侧放射影像进行评估，以寻找蹄叶炎的证据。
病例动物的体重与对照动物无显著差异，但对照动物恢复前跛行天数显著少于病例动物在蹄叶炎发作前的跛行天数。20例病例动物中有16例获得了患侧支肢蹄的内外侧放射影像。对于所有16例，远节指骨背侧软组织厚度大于远节指骨掌侧皮质长度的29%，但只有1例有远节指骨旋转的证据。实施安乐死的病例动物比例显著高于对照动物。
跛行持续时间而非体重是单侧跛行马属动物对侧肢发生蹄叶炎的危险因素，发生此并发症的动物比未发生的动物更有可能实施安乐死。
