A Strong Correlation Between the Severity of Flatfoot and Symptoms of Knee Osteoarthritis in 95 Patients

Frontiers in Surgery

article

Min Zhang¹  Mao-dan Nie¹  Xin-zheng Qi¹  Song Ke³  Jun-wei Li¹  Yang-yang Shui¹  Zhuo-yue Zhang¹  Min Wang³  Cheng-Kung Cheng¹ 

[1] Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University;School of Biomedical Engineering, Shanghai Jiao Tong University;Department of Orthopedics, Xinqiao Hospital, Third Military Medical University

关键词: knee osteoarthritis;    flatfoot;    K-L grade;    FTA;    knee pain;    knee function;    knee stiffness;   

DOI  :  10.3389/fsurg.2022.936720

学科分类：社会科学、人文和艺术（综合）

来源: Frontiers

【 摘 要 】

Objective The purpose of this study is to assess the association between the presence and severity of flatfoot and symptoms of knee OA. Methods 95 participants with knee OA were recruited from a patient cohort at a regional hospital. Symptoms of knee OA, including knee degeneration, femorotibial alignment, pain, stiffness and dysfunction were assessed using the Kellgren-Lawrence (K-L) grading system, femoral-tibial angle (FTA), and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). Participants were divided into groups with flatfoot (mild, moderate and severe) and without flatfoot based on the Clarke's angle. Linear regression and ordinal logistic regression were used for statistical analysis, as appropriate. Results Having flatfoot was associated with a significantly increased risk of having a higher K-L grade (OR: 20.03; 95% CI, 5.88, 68.27; p  < 0.001), smaller FTA (Beta: −2.96; 95% CI, −4.41, −1.50; p  < 0.001), higher pain score (Beta: 0.47; 95% CI, 0.24, 0.69; p  < 0.001) and greater loss of function (Beta: 0.25; 95% CI, 0.02, 0.48; p  = 0.03). Severe grades of flat feet were associated with a higher K-L grade (OR: 0.19; 95% CI, 0.08, 0.44; p  < 0.001), smaller FTA (Beta: 1.51; 95% CI, 0.66, 2.35; p  = 0.001), higher pain score (Beta: −0.25; 95% CI, −0.39, −0.11; p  = 0.001), greater stiffness (Beta: −0.24; 95% CI, −0.38, −0.09; p  = 0.002) and greater loss of function (Beta: −0.27; 95% CI, −0.41, −0.14; p  < 0.001). Conclusion The results indicated that the severity of flattening is significantly associated with symptoms of knee OA. For the conservative management of knee OA, both flatfoot and its severity should be carefully considered.

【 授权许可】

CC BY