Whitehouse S L, Lingard E A, Katz J N, Learmonth I D
Orthopaedic Research Unit, Queensland University of Technology, Prince Charles Hospital, Chermside, Brisbane QLD 4001, Australia.
J Bone Joint Surg Br. 2003 Jul;85(5):706-11.
We used prospective data from 862 total knee and 716 total hip replacements three years after surgery in order to derive and validate a reduced Western Ontario and McMasters University Osteoarthritis Index (WOMAC) function scale. The reduced scale was derived using the advice of clinical experts as well as analysis of data. The scale was tested for validity, reliability and responsiveness. Items which were retained included: ascending stairs, rising from sitting, walking on the flat, getting in or out of a car, putting on socks, rising from bed, and sitting. The reduced and full scales had comparable, moderate correlations with other measures of function, confirming convergent validity. Cronbach's alpha was high (alpha > 0.85) with the reduced scale confirming reliability. Responsiveness was greater for the reduced scale (full = 1.4, reduced = 1.6). This reduced version of the WOMAC function scale provides a practical, valid, reliable and responsive alternative to the full function scale for use after total joint replacement. Further work is needed to demonstrate its wider applicability.
我们使用了862例全膝关节置换术和716例全髋关节置换术术后三年的前瞻性数据，以推导并验证简化版的西安大略和麦克马斯特大学骨关节炎指数（WOMAC）功能量表。简化版量表是在临床专家的建议以及数据分析的基础上得出的。对该量表进行了效度、信度和反应度测试。保留的项目包括：上楼梯、从坐姿起身、平地行走、进出汽车、穿袜子、从床上起身和坐下。简化版和完整版量表与其他功能测量指标具有相当的中度相关性，证实了收敛效度。简化版量表的克朗巴哈系数较高（α>0.85），证实了信度。简化版量表的反应度更高（完整版=1.4，简化版=1.6）。WOMAC功能量表的这个简化版本为全关节置换术后使用提供了一个实用、有效、可靠且具有反应度的完整版量表替代方案。需要进一步开展工作以证明其更广泛的适用性。
