Department of Kinesiology, College of Agriculture, Health and Natural Resources, University of Connecticut, USA.
School of Exercise and Rehabilitation Sciences, College of Health and Human Services, University of Toledo, USA.
J Sci Med Sport. 2022 May;25(5):399-406. doi: 10.1016/j.jsams.2022.01.004. Epub 2022 Jan 26.
Patellofemoral pain (PFP) is a common lower extremity condition that results in pain during functional tasks. Currently, it is unknown the extent to which differences in pain levels exist in individuals with PFP compared to asymptomatic controls during functional task and if pain differ across various functional tasks. The purpose of this systematic review and meta-analysis is to evaluate pain levels between individuals with PFP and asymptomatic controls and compare pain severity across various functional tasks.
Systematic review.
OVID, SPORTSDiscus, CINAHL, Web of Science and Embase were searched for studies that included PFP and asymptomatic controls with pain assessed during a functional task. Pooled pain scores mean with 95% confidence intervals were calculated between groups across 11 functional tasks. Standardized mean differences (SMD) were calculated based on Hedge's g effect sizes. Tasks whose SMD 95% confidence intervals were non-overlapping were considered significantly different.
28 articles were included for data analysis. Pain was greater across 10 tasks (SMD = 1.52-6.08) in individuals with PFP compared to the asymptomatic controls with an average SMD of 2.45. Running and star excursion balance testing resulted in greater pain than walking. Limited evidence showed greater pain in sitting than seven other tasks.
Moderate evidence exists for greater pain levels in individuals with PFP compared to asymptomatic controls in functional tasks. Pain was greater during running and star excursion balance compared to walking. Clinicians should assess knee pain before and after functional tasks to improve our understanding of patient specific pain experiences.
髌股疼痛（PFP）是一种常见的下肢疾病，在功能活动中会导致疼痛。目前，尚不清楚 PFP 患者与无症状对照者在功能活动中疼痛程度的差异程度，以及不同功能活动中的疼痛是否存在差异。本系统评价和荟萃分析的目的是评估 PFP 患者与无症状对照者之间的疼痛水平，并比较各种功能活动中的疼痛严重程度。
系统评价。
在 OVID、SPORTSDiscus、CINAHL、Web of Science 和 Embase 中搜索包括 PFP 和无症状对照者的研究，这些研究在功能活动中评估了疼痛。在 11 项功能活动中，计算了组间的平均疼痛评分（95%置信区间）。根据 Hedge's g 效应大小计算了标准化均数差（SMD）。95%置信区间不重叠的 SMD 被认为具有显著差异。
28 篇文章被纳入数据分析。与无症状对照组相比，PFP 患者在 10 项任务（SMD=1.52-6.08）中疼痛程度更高，平均 SMD 为 2.45。跑步和星状偏移平衡测试比步行引起的疼痛更大。有限的证据表明，与其他七项任务相比，坐姿时疼痛更大。
有中等证据表明，与无症状对照组相比，PFP 患者在功能活动中疼痛水平更高。与步行相比，跑步和星状偏移平衡测试引起的疼痛更大。临床医生应在功能活动前后评估膝关节疼痛，以提高我们对患者特定疼痛体验的理解。
