Clinical Impact of Coexisting Patellofemoral Osteoarthritis in Japanese Patients With Medial Knee Osteoarthritis

Arthritis Care & Research
Hirotaka IijimaShuichi Matsuda

Abstract

To evaluate the clinical impact in knee osteoarthritis (OA) of coexisting patellofemoral (PF) joint OA (PFOA) in Japanese patients with medial tibiofemoral (TF) joint OA (TFOA). Patients with medial knee OA (n = 143) were enrolled. The radiographic severity of the TF and PF joints, anatomic axis angle of the TF joint, patellar alignment, trochlear morphology, patellar height, and passive range of motion (ROM) of the painful knee were evaluated. Additionally, the Japanese Knee Osteoarthritis Measure (JKOM) was used to investigate the association between the presence of PFOA and clinical symptoms. PFOA was present in 98 of 143 patients (68.5%) with medial knee OA. Quantile regression analysis revealed that coexisting PFOA was associated with the pain-related subcategory of the JKOM. Furthermore, multiple logistic regression analysis showed that coexisting PFOA was associated with higher odds of reporting knee pain on using stairs while ascending (odds ratio [OR] 4.81 [95% confidence interval (95% CI) 1.73, 14.3]) and descending (OR 3.86 [95% CI 1.44, 10.8]). A more varus knee alignment and lower knee flexion ROM, which are features of patients with coexisting PFOA, were associated with knee pain while ascending/descending stairs....Continue Reading

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Citations

Nov 16, 2017·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Harvi F HartMichael A Hunt
Sep 14, 2018·The Journal of Orthopaedic and Sports Physical Therapy·Kathryn MillsDavid J Hunter
Nov 5, 2017·Aging Clinical and Experimental Research·Camille ParsonsUNKNOWN EPOSA Research Group
Jun 5, 2019·JB & JS Open Access·Hirotaka IijimaMasaki Takahashi

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