Mahaisavariya B, Laupattarakasem W
Department of Orthopaedics, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
J Med Assoc Thai. 1994 Jan;77(1):19-24.
The medial rotation deformity of the distal humerus usually exists in the cubitus varus deformity but has received little attention. Study of this deformity in 29 cases of cubitus varus was carried out using the osteotomized bony specimens that were removed during closed wedge osteotomy in order to determine the actual bone deformity. The average duration of the varus deformity was 5.6 yrs (range 1 to 11). The medial rotation deformity of the distal humerus averaged 27 degrees (range 15 to 45). There was no correlation between the degree of rotation and that of the varus deformity (correlation coefficient r = 0.15). The affected-side shoulder compensated well in both internal and external rotation, and had a greater arc of rotation than that of the normal side. The affected-side shoulder exhibited an internal rotation deformity with an average of 16 degrees (range 5 to 25), with restriction of external rotation of only 13 degrees (range 0 to 20) in comparison to normal side shoulder.
肱骨远端内旋畸形通常存在于肘内翻畸形中，但很少受到关注。为了确定实际的骨畸形情况，我们对29例肘内翻患者进行了研究，使用的是在闭合楔形截骨术中切除的截骨骨性标本。内翻畸形的平均持续时间为5.6年（范围为1至11年）。肱骨远端的内旋畸形平均为27度（范围为15至45度）。旋转程度与内翻畸形程度之间无相关性（相关系数r = 0.15）。患侧肩部在内外旋方面代偿良好，并且旋转弧比正常侧更大。患侧肩部表现出平均16度（范围为5至25度）的内旋畸形，与正常侧肩部相比，外旋受限仅13度（范围为0至20度）。
