2024 Volume 4 Issue 1 Pages 28-35
Objective: This study aimed to clarify the characteristics of patients with knee osteoarthritis (knee-OA) with mild central sensitization-related symptoms (CSSs) by examining their physical and psychological functions.
Methods: A total of 40 patients with knee OA were included in the study. All subjects were evaluated on the nine-item short version of the Central Sensitization Inventory (CSI-9), pain intensity, range of motion of the knee joint (ROM), knee extensor strength, 5-Meter Walk Test (5MWT), Timed Up & Go test (TUG), Japanese Knee Osteoarthritis Measure (JKOM), Hospital Anxiety and Depression Scale (HADS), 11-item version of Tampa Scale for kinesiophobia (TSK), and Pain Catastrophizing Scale (PCS). Based on the CSI-9 results, patients were classified into no-CSSs and mild-CSSs groups, and the results were compared using an unpaired t-test and chi-squared test.
Results: The mild-CSSs group showed significantly worse values for 5MWT, TUG, JKOM, HADS, and PCS than the no-CSSs group. But there were no significant differences in ROM, muscle strength and TSK between the two groups. ROM, extensor strength and TSK.
Conclusion: The results showed that patients with knee OA with mild CSSs had impaired physical performance and psychological functions, even though the pain intensity and the function of the knee joint were comparable to those without CSSs.
