KSS 2011反映了日本人群的症状、身体活动及影像学分级情况。
The KSS 2011 reflects symptoms, physical activities, and radiographic grades in a Japanese population.
作者信息
Taniguchi Naoya, Matsuda Shuichi, Kawaguchi Takahisa, Tabara Yasuharu, Ikezoe Tome, Tsuboyama Tadao, Ichihashi Noriaki, Nakayama Takeo, Matsuda Fumihiko, Ito Hiromu
机构信息
Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan.
出版信息
Clin Orthop Relat Res. 2015 Jan;473(1):70-5. doi: 10.1007/s11999-014-3650-6.
BACKGROUND
Cultural and ethnic differences are present both in subjective and objective measures of patient health, but scoring systems do not always reflect these differences, and so validation of outcomes tools in different cultural settings is important. Recently, a revised version of The Knee Society Score® (KSS 2011) was developed, but to our knowledge, the degree that this tool evaluates clinical symptoms, physical activities, and radiographic grades in the general Japanese population is not known.
QUESTIONS/PURPOSES: We therefore asked: (1) how KSS 2011 reflects knee conditions and function in the general Japanese population, in particular evaluating changes with increasing patient age; (2) can objective measures of physical function be correlated with KSS 2011; and (3) does radiographic osteoarthritis (OA) grade correlate with KSS 2011?
METHODS
Two hundred twenty-six people in the general Japanese population, aged 35 to 92 years, with and without knee arthritis, voluntarily participated in this cross-sectional study. Residents who had no serious disease or symptoms based on a self-assessment were recruited. This study consisted of a questionnaire including self-administered KSS 2011, physical examination, and weightbearing radiographs of the knee. Leg muscle strength, Timed Up and Go test, and body mass index (BMI) were examined in all the participants. Radiographs were graded according to the Kellgren and Lawrence scale (KL grade).
RESULTS
Multivariable linear regression analysis showed that KSS 2011 correlated with age (coefficient: -0.30±0.12, p=0.011), BMI (coefficient: -1.47±0.42, p<0.001), leg muscle strength (coefficient: 0.41±0.13, p=0.002), and Timed Up and Go Test (coefficient: -1.96±0.92, p=0.034), but not sex, as independent variables by a stepwise method. KSS 2011 was also correlated with radiographic OA evaluated by KL grade (coefficient: -12.2±2.9, p<0.001).
CONCLUSIONS
KSS 2011 reflects symptoms, physical activities, and radiographic OA grades of the knee in an age-dependent manner in the general Japanese population.
LEVEL OF EVIDENCE
Level IV, diagnostic study. See Guidelines for Authors for a complete description of levels of evidence.
背景
患者健康的主观和客观测量中均存在文化和种族差异，但评分系统并不总能反映这些差异，因此在不同文化背景下验证结果工具很重要。最近，开发了《膝关节协会评分》（KSS 2011）的修订版，但据我们所知，该工具评估日本普通人群临床症状、身体活动和影像学分级的程度尚不清楚。
问题/目的：因此，我们提出以下问题：（1）KSS 2011如何反映日本普通人群的膝关节状况和功能，特别是评估随患者年龄增长的变化；（2）身体功能的客观测量指标能否与KSS 2011相关联；（3）影像学骨关节炎（OA）分级与KSS 2011是否相关？
方法
226名年龄在35至92岁之间、有或无膝关节炎的日本普通人群自愿参与了这项横断面研究。招募了根据自我评估无严重疾病或症状的居民。本研究包括一份问卷，其中包含自行填写的KSS 2011、体格检查和膝关节负重X线片。对所有参与者进行腿部肌肉力量、计时起立行走测试和体重指数（BMI）检查。根据Kellgren和Lawrence量表（KL分级）对X线片进行分级。
结果
多变量线性回归分析显示，通过逐步法，KSS 2011与年龄（系数：-0.30±0.12，p = 0.011）、BMI（系数：-1.47±0.42，p < 0.001）、腿部肌肉力量（系数：0.41±0.13，p = 0.002）和计时起立行走测试（系数：-1.96±0.92，p = 0.034）相关，但与性别无关，这些为自变量。KSS 2011也与通过KL分级评估的影像学OA相关（系数：-12.2±2.9，p < 0.001）。
结论
在日本普通人群中，KSS 2011以年龄依赖的方式反映膝关节的症状、身体活动和影像学OA分级。
证据水平
IV级，诊断性研究。有关证据水平的完整描述，请参阅作者指南。
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