Parag Jaiswal1, Pam Railton1, Hoa Khong1, Christopher Smith1, James Powell1. 1. From the Cumming School of Medicine, University of Calgary, Calgary, Alta. (Jaiswal, Railton, Powell); and the Alberta Bone and Joint Health Institute, Calgary, Alta. (Khong, Smith).
Abstract
Background: The aim of this prospective cohort study was to determine the effect of preoperative mental health status on functional outcome 1 year after total hip arthroplasty (THA). Methods: Data were collected for 677 patients from a randomized controlled trial in Alberta who received primary THA between April 2005 and June 2006 (sex, age, body mass index [BMI], comorbidities, back pain and need for another lower limb arthroplasty procedure within 1 yr after surgery). The Western Ontario and McMaster University Osteoarthritis Index (WOMAC) and 36-Item Short Form Health Survey (SF-36) mental health component were administered before surgery and 1 year after. We conducted multiple linear regression to determine the effect of mental health on the WOMAC score at 1 year. Results: The mean WOMAC and SF-36 mental health scores were significantly increased at 1 year (p < 0.001 and p = 0.01, respectively). There was a strong correlation between improvement in WOMAC score at 1 year and presurgery SF-36 mental health score (0.13, 95% confidence interval [CI] 0.06 to 0.2). Age (–0.34, 95% CI –0.45 to –0.24), obesity (–2.9, 95% CI –5.32 to –0.4), back pain (–5.75, 95% CI –8.04 to –3.46) and awaiting another joint arthroplasty operation (–6.18, 95% CI –8.9 to –3.47) had a negative impact on the WOMAC score. Conclusion: There was a strong correlation between presurgery mental health and the resolution of pain and improved functioning 1 year after THA. We recommend that patients receive appropriate counselling and, where appropriate, medical therapy before THA.
RCT Entities:
Background: The aim of this prospective cohort study was to determine the effect of preoperative mental health status on functional outcome 1 year after total hip arthroplasty (THA). Methods: Data were collected for 677 patients from a randomized controlled trial in Alberta who received primary THA between April 2005 and June 2006 (sex, age, body mass index [BMI], comorbidities, back pain and need for another lower limb arthroplasty procedure within 1 yr after surgery). The Western Ontario and McMaster University Osteoarthritis Index (WOMAC) and 36-Item Short Form Health Survey (SF-36) mental health component were administered before surgery and 1 year after. We conducted multiple linear regression to determine the effect of mental health on the WOMAC score at 1 year. Results: The mean WOMAC and SF-36 mental health scores were significantly increased at 1 year (p < 0.001 and p = 0.01, respectively). There was a strong correlation between improvement in WOMAC score at 1 year and presurgery SF-36 mental health score (0.13, 95% confidence interval [CI] 0.06 to 0.2). Age (–0.34, 95% CI –0.45 to –0.24), obesity (–2.9, 95% CI –5.32 to –0.4), back pain (–5.75, 95% CI –8.04 to –3.46) and awaiting another joint arthroplasty operation (–6.18, 95% CI –8.9 to –3.47) had a negative impact on the WOMAC score. Conclusion: There was a strong correlation between presurgery mental health and the resolution of pain and improved functioning 1 year after THA. We recommend that patients receive appropriate counselling and, where appropriate, medical therapy before THA.
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