Factors associated with pain intensity and physical limitations after lateral ankle sprains

Background Swelling, tenderness, and ecchymosis don't correlate with time to functional recovery in patients with a lateral ankle sprain. It is established that psychosocial factors such as symptoms of depression and low pain self-efficacy correlate with pain intensity and magnitude of limitations in patients with musculoskeletal disorders. Objective We studied the correlation between pain self-efficacy or symptoms of depression and (1) ankle specific limitations and (2) pain intensity in patients with a lateral ankle sprain. Further we explored the correlation between estimation of sprain severity (grade) and (3) pain intensity or magnitude of ankle specific limitations. Design Eighty-four patients with a lateral ankle sprain prospectively completed the Pain Self Efficacy Questionnaire, the Olerud Molander Ankle Score, Ordinal scale of Pain and the Patient Health Questionnaire-2 at enrollment and the Olerud Molander Ankle Score and the Ordinal scale of Pain three weeks after the injury. Factors associated with higher ankle specific limitations and symptoms were investigated in bivariable and multivariable analysis. Results When accounting for confounding factors, greater self-efficacy (p = 0.01) and older age (p