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The association between body mass index and patient-reported outcome measures before and after primary total hip or knee arthroplasty: a registry.
- Source :
-
ANZ journal of surgery [ANZ J Surg] 2023 Jun; Vol. 93 (6), pp. 1665-1673. Date of Electronic Publication: 2023 Apr 05. - Publication Year :
- 2023
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Abstract
- Background: The objective is to determine whether body mass index is associated with patient-reported expectations and well-being before primary total hip or total knee arthroplasty, and patient-reported outcomes 6 months after surgery.<br />Methods: Data were obtained from the Australian Orthopaedic Association National Joint Replacement Registry. Outcome measures included pre-operative expectations for post-operative mobility, joint pain and health, pre- and post-operative EQ-5D-5L, EQ-VAS, Oxford Hip/Knee Scores and joint pain scales, and post-operative perceived change and perceived satisfaction. Associations with BMI were assessed using chi-square tests, analysis of variance and Linear Mixed Models equations.<br />Results: Data were available for 12 816 primary THA patients and 20 253 primary TKA patients. Pre-operatively, patients in higher BMI categories were significantly more likely to expect ongoing problems with mobility, more joint pain and poorer health following surgery (P<0.01 for all analyses). For arthroplasty patients, higher BMI was associated with poorer pre-operative and post-operative scores for all measures. BMI was positively associated with improvements in EQ-5D, OHS/KS and joint pain. While between-group differences were statistically significant, many were small in magnitude. There was no association between BMI and patient-perceived change or satisfaction after arthroplasty.<br />Conclusion: Patients undergoing THA/TKA, higher BMI was associated with lower pre-operative expectations, poorer well-being before surgery, and worse scores after surgery. Patients who were obese demonstrated comparable satisfaction with their operated joint, compared with non-obese patients. BMI was associated with greater pre- to post-operative improvements in outcome scores for EQ-5D, VAS knee, OHS/OKS and joint pain but these differences may not be clinically important.<br /> (© 2023 Royal Australasian College of Surgeons.)
Details
- Language :
- English
- ISSN :
- 1445-2197
- Volume :
- 93
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- ANZ journal of surgery
- Publication Type :
- Academic Journal
- Accession number :
- 37020347
- Full Text :
- https://doi.org/10.1111/ans.18449