Razmjou Helen, Denis Suzanne, Robarts Susan, Falconer James, Anunciacion Mark, Nunn Andrea, Wainwright Amy, Dickson Patricia, Najafi Roxana, Murnaghan John
Bone and Joint Program, Holland Orthopedic & Arthritic Centre, Sunnybrook Health Sciences Centre, Toronto, Canada.
Department of Physical Therapy, Faculty of Medicine, University of Toronto, Toronto, Canada.
Osteoarthr Cartil Open. 2023 Sep 29;5(4):100410. doi: 10.1016/j.ocarto.2023.100410. eCollection 2023 Dec.
The purpose of this study was to develop and establish reliability and validity of a virtual performance measure (VPM) score that encompassed 10 videos in patients with osteoarthritis of the knee joint. Patients' experience and satisfaction were documented.
Forty videos were chosen for 10 functional tasks, with four videos showing increasing difficulty for each task. Patients were requested to choose the video that best reflected their own situation. Clinical and radiological findings and self-report and performance measures were completed.
Data of 100 patients, 70 (70%) females, mean age: 65 ± 9 were examined. The Cronbach's alpha coefficient that examined internal consistency of the VPM score was 0.92. The intraclass correlation value of 0.82 was obtained for test-retest reliability. Factor analysis showed three distinct domains. There was moderate correlations between the VPM score and the self-report and actual performance measures ranging from r = 0.46 to 0.66. The VPM summated score of 10 activities was able to differentiate between candidates and non-candidates for knee arthroplasty, with the area under the curve value of 0.90 indicating excellent predictive validity. The overall patient experience and satisfaction was positive with 67% of participants feeling that virtual care could have an impact on minimizing physical presence in the clinic or hospital.
The VPM is a reliable and valid outcome measure in patients with osteoarthritis of the knee joint. This digital tool has the potential to transform osteoarthritis care by providing a valid remote measurement of real-life functional limitations and reduce the burden of time consuming in-person tests.
本研究的目的是开发并建立一种虚拟表现测量（VPM）评分的可靠性和有效性，该评分涵盖了10个膝关节骨关节炎患者的视频。记录了患者的体验和满意度。
为10项功能任务选择了40个视频，每项任务有4个视频，难度逐渐增加。要求患者选择最能反映自身情况的视频。完成了临床和放射学检查结果以及自我报告和表现测量。
检查了100名患者的数据，其中70名（70%）为女性，平均年龄：65±9岁。检验VPM评分内部一致性的克朗巴哈系数为0.92。重测信度的组内相关值为0.82。因子分析显示有三个不同的领域。VPM评分与自我报告和实际表现测量之间存在中等相关性，范围从r = 0.46至0.66。10项活动的VPM总分能够区分膝关节置换术的候选者和非候选者，曲线下面积值为0.90表明具有出色的预测效度。总体患者体验和满意度为积极，67%的参与者认为虚拟护理可能对减少在诊所或医院的实际就诊次数有帮助。
VPM是膝关节骨关节炎患者可靠且有效的结局测量指标。这种数字工具有可能通过对现实生活中的功能限制进行有效的远程测量来改变骨关节炎护理，并减轻耗时的现场测试负担。
