Negahban Hossein, Mostafaee Neda, Sohani Soheil Mansour, Hessam Masumeh, Tabesh Hamed, Montazeri Ali
Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran .
Disabil Rehabil. 2015;37(14):1285-90. doi: 10.3109/09638288.2014.962107. Epub 2014 Sep 22.
To investigate the responsiveness and determine the minimally important differences (MID) of Persian versions of the Kujala patellofemoral scale (KPS), lower extremity functional scale (LEFS), and functional index questionnaire (FIQ) in patients with patellofemoral pain syndrome (PFPS).
Outcome measures including the Persian KPS, LEFS, and FIQ were administered to 233 patients at baseline and then again 4 weeks after physiotherapy. Moreover, the 7-point global rating scale was completed by the patients at 4 weeks. Responsiveness was evaluated using the correlation analysis and the receiver operating characteristics (ROC) method.
Correlation analysis showed that the relationship of all outcome measures with the global rating scale falls within the fair range of relationship (Gamma = 0.26-0.40). Moreover, the results of ROC analysis showed that the all outcome measures have acceptable high responsiveness index. Furthermore, the MIDs of 9.5, 4.5, and 1.5 points were obtained for the Persian KPS, LEFS, and FIQ, respectively.
The Persian-versions of all outcome measures are responsive for evaluating change following physiotherapy intervention. The MID values obtained in this study will help the clinicians and researchers to determine if a patient with PFPS has experienced a true change following a physiotherapy intervention. Implications for Rehabilitation Persian-versions of the KPS, LEFS, and FIQ can be used as three "responsive" outcome measures in clinical studies of patients with patellofemoral pain syndrome (PFPS). These assessment tools have clinical relevance for rehabilitation specialists working on patients with PFPS. The minimally important differences provide valuable information for the clinicians and researchers to make decision about the identification of a clinical change in health status of patients with PFPS.
探讨库亚拉髌股关节量表（KPS）、下肢功能量表（LEFS）和功能指数问卷（FIQ）的波斯语版本在髌股关节疼痛综合征（PFPS）患者中的反应性，并确定其最小重要差异（MID）。
对233例患者在基线时进行包括波斯语KPS、LEFS和FIQ在内的结局指标评估，然后在物理治疗4周后再次评估。此外，患者在4周时完成7分整体评定量表。使用相关分析和受试者工作特征（ROC）方法评估反应性。
相关分析表明，所有结局指标与整体评定量表的关系处于中等范围（Gamma = 0.26 - 0.40）。此外，ROC分析结果表明，所有结局指标均具有可接受的高反应性指数。此外，波斯语KPS、LEFS和FIQ的MID分别为9.5分、4.5分和1.5分。
所有结局指标的波斯语版本对评估物理治疗干预后的变化具有反应性。本研究中获得的MID值将有助于临床医生和研究人员确定PFPS患者在物理治疗干预后是否经历了真正的变化。康复意义 KPS、LEFS和FIQ的波斯语版本可作为髌股关节疼痛综合征（PFPS）患者临床研究中的三个“反应性”结局指标。这些评估工具对治疗PFPS患者的康复专家具有临床相关性。最小重要差异为临床医生和研究人员提供了有价值的信息，以便他们决定是否识别出PFPS患者健康状况的临床变化。
