The Study on the Classification and Pathogenesis of the Osteoarthritic Knee in Elderly

临床和放射学试验和比较已携带了1，000多名944名骨质疏松症患者（OA）外患者诊所的横滨市大学医院和229名OA患者的311名膝关节炎患者和上海第二大学医院的229名患者。日本患者有230名男子和714名妇女。男人对女人的比率是1 ： 3.1。平均年龄为61.8岁（加减）9.5年。有627条右膝盖和615条左膝盖， 1110条主要OA和132条次要OA。男子的体重为62.3<加减>8.9公斤，妇女为55.4<加减> 9.5公斤。这两个群体都比同一年龄的正常人更重。“膝盖的后半导体电台，以及帕特拉的轴向视图（天际线视图）在一级站立的位置上取得了成功。”无线电学发现是按Ahlback的位置分列的联合空间的分类标准，在三种艺术中：中级和后期女性， ... More 和帕特洛-女性激动人心。没有任何联合空间Narrow的初始类型的百分比，有中间女性联合空间Narrow的中间类型，中间/母亲类型和母亲类型分别占30.3%、41.9%、19.6%和2.1%。患者的数目超过5年，持续时间超过5年，有严重的膝盖疼痛，有正式姿势和吮吸的不可能性，以及在行走的有限距离在一组患者中看到更多与联合空间的狭窄相比。对中国病人来说，有88名男子和141名妇女。男人对女人的比率是1 ： 1.6。平均年龄为52.3+减去11.7年。那里有67条右膝盖和158条左膝盖， 28条主要OA和283条次要OA。初始类型、中间类型、中·帕特洛女性类型和帕特洛女性类型的百分比分别为49.5%、3.5%、15.4%和25.7%。在与中国患者的联合空间中，临床信号被描述为严重的日本患者。与帕特洛相比，女性类型的患者数量在日本比在中国还要多。这种差异似乎是由事实造成的：中国人没有正式坐方形的习惯，一个每天骑自行车的习惯，轻盈的体重和更好的valgus对齐，以及中国病人在这个研究中比日本年轻。

Clinical and radiographical examination and comparison were carried out on one thousand two hundred fourty-two knees of 944 patients with osteoarthritis (OA) in out-patients clinic of the Yokohama City University Hospital and 311 knees of 229 patients with OA in Shanghai Second University Hospital. As to Japanese patients, there were 230 men and 714 women. The ratio of men to women was 1 : 3.1. The average age was 61.8<plus-minus>9.5 years. There were 627 right knees and 615 left knees, 1110 primary OA and 132 secondary OA. Body weight was 62.3<plus-minus>8.9 Kg in men and 55.4<plus-minus>9.5Kg in women. Both groups were heavier than those of normal persons of the same age. The antero-posterior radiographs of the knees, and the axial views (skyline views) of the patella were taken at the one-leg-standing position. The radiographical findings were classfied according to Ahlback's criteria by location of the joint space narrowing in three articulations : medial and lateral femorotibial, … More and patello-femoral articulation. Percentage of initial type without any joint space narrowing, medial type with medial femorotibial joint space narrowing, medial・ patello-femoral type and patello-femoral type was 30.3%, 41.9%, 19.6% and 2.1% respectively. The numbers of patients with more than 5 years duration since onset, with severe knee pains, with inability of formal sitting and squating and with limited distance in walking were seen more in the group of patients with joint space narrowing than that without. As to chinese patients, there were 88 men and 141 women. The ratio of men to women was 1 : 1.6. The average age was 52.3<plus-minus>11.7 years. There were 67 right knees and 158 left knees, 28 primary OA and 283 secondary OA. Percentage of initial type, medial type, medial・patello-femoral type and patello-femoral type were 49.5%, 3.5%, 15.4%, and 25.7% respectively. Clinical signs in the Chinese patients with joint space narrowing were as severe as those of Japanese ones. The number of the patients with patello-femoral type was more in China than in Japan. This difference seems to be caused by the fact that Chinese have no habit of formal sitting square, an habit of riding bicycle every day, light body weight and rather valgus alignment of the knees, and Chinese patients in this study were younger than Japane Less