Kramer Alon, Holsworth Ian G, Wisner Erik R, Kass Phillip H, Schulz Kurt S
Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA 95616, USA.
Vet Surg. 2006 Jan;35(1):24-9. doi: 10.1111/j.1532-950X.2005.00107.x.
To compare radioulnar incongruence (RUI) of normal canine elbows and elbows with arthroscopically confirmed medial compartment disease in vivo using systematic computed tomography (CT) measurements.
Prospective comparison of RUI measurements in normal and dysplastic canine elbows.
Right elbows of 25 medium-large breed, adult dogs with medial compartment disease and 9 medium-large breed, adult dogs with no elbow disease.
Transverse CT images of proximal radioulnar articulation were reformatted to dorsal and sagittal planes. RUI in 3 locations of the forelimb's medial coronoid was measured. Arthroscopy confirmed diagnosis of medial compartment disease in the diseased group. RUI measurements of the diseased and normal elbows were compared.
Cumulative statistical analysis of RUI in all planes revealed no significant difference between the normal and abnormal elbows (P = .61). The abnormal elbows had negative mean RUI at the mid (P = .56) and cranial (P = .24) coronoid regions that were not significantly different from normal elbows and mean positive RUI at the base coronoid that was significantly greater than in normal elbows (P = .00082).
Canine elbows with established medial compartment disease do not have significant RUI at the medial coronoid region at the time of diagnosis when compared with normal elbows.
If RUI is a significant factor in the pathophysiology of medial compartment elbow disease in the dog, it does not appear to be present at the time of diagnosis of disease. Ulnar or radial osteotomies do not appear to be indicated for restoration of normal radioulnar articular surface alignment.
通过系统计算机断层扫描（CT）测量，比较正常犬肘部与经关节镜证实存在内侧间室疾病的肘部的桡尺骨不匹配（RUI）情况。
对正常和发育异常的犬肘部RUI测量值进行前瞻性比较。
25只患有内侧间室疾病的中大型成年犬的右肘，以及9只无肘部疾病的中大型成年犬的右肘。
将近端桡尺关节的横向CT图像重新格式化为背侧和矢状面。测量前肢内侧冠状突3个位置的RUI。关节镜检查确诊患病组的内侧间室疾病。比较患病肘部和正常肘部的RUI测量值。
所有平面上RUI的累积统计分析显示，正常肘部和异常肘部之间无显著差异（P = 0.61）。异常肘部在冠状突中部（P = 0.56）和颅侧（P = 0.24）区域的平均RUI为负值，与正常肘部无显著差异，而在冠状突基部的平均RUI为正值，显著大于正常肘部（P = 0.00082）。
与正常肘部相比，确诊时患有内侧间室疾病的犬肘部在内侧冠状突区域不存在显著的RUI。
如果RUI是犬内侧间室肘部疾病病理生理学中的一个重要因素，那么在疾病诊断时似乎并不存在。尺骨或桡骨截骨术似乎并不适用于恢复正常的桡尺关节面排列。
