Personality, function and satisfaction in patients undergoing total hip or knee replacement
Lane, Judith V.
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Ramaesh, R., Jenkins, P., Lane, J., Knight, S., Macdonald, D. & Howie, C. (2014) Personality, function and satisfaction in patients undergoing total hip or knee replacement, Journal of Orthopaedic Science, vol. 19, , pp. 275-281,
Background: The aim of this study was to investigate the relationships between personality and joint-specific function, general physical and general mental health in patients undergoing total hip (THA) and knee arthroplasty (TKA). Methods: One hundred and eighty-four patients undergoing THA and 205 undergoing TKA were assessed using the Eysneck Personality Questionnaire, brief version (EPQ-BV). General physical and mental health was measured using the Short-Form 12 (SF-12) questionnaire and the EuroQol (EQ-5D). Joint-specific function was measured using the Oxford hip or knee score. Results: The unstable introvert personality type was associated with poorer pre-operative function and health in patients with hip arthrosis. In patients with knee arthrosis, there was poorer general health in those with stable extrovert and unstable introvert types. Personality was not an independent predictor of outcome following TKA or THA. The main predictor was pre-operative function and health. Comorbidity was an important covariate of both pre-operative and postoperative function. Conclusions: Personality may play a role in the interaction of these disease processes with function and health perception. It may also affect the response and interpretation of psychometric and patient-reported outcome measures. It may be important to characterise and identify these traits in potential arthroplasty patients as it may help deliver targeted education and management to improve outcomes in certain groups. 2013 The Japanese Orthopaedic Association.