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See Latest ArticlesTotal knee replacement and health-related quality of life: Factors influencing long-term outcomes
Arthritis Care and Research , 08/07/09
Nunez M et al. – Study reports that WOMAC dimension scores, especially pain, significantly improved at 7 years and were negatively influenced by obesity and postdischarge complications. Health-related quality of life (HRQOL) measures may help identify an increased risk of negative outcomes after total knee replacement (TKR).
Methods- Main objectives of this study were to:
- Evaluate HRQOL in pts with osteoarthritis undergoing TKR
- Identify the influence of sociodemographic, clinical, intraoperative, and postoperative variables on HRQOL, and
- Determine patient perceptions at 7 yrs
- HRQOL measures WOMAC and SF36, sociodemographic, clinical, intraoperative, inpatient, and postoperative data, patient perceptions of TKR outcomes, and physical activity at 7 yrs were determined
- Of 146 eligible pts, 112 (86 women, mean age 67.3 yrs) completed f/u data
- There were differences between pre- and postoperative WOMAC pain, stiffness, and function scores
- Variables retained in each of the models explained 14-32% of variability of the WOMAC dimensions
- Obesity and postdischarge complications were associated with worse scores in all WOMAC dimensions
- 86% of pts were satisfied with TKR
- 80% would undergo the operation again
- 56% did regular physical activity and had better WOMAC scores
- Mean ± SD SF-36 scores for men and women at 7 years were:
- 55.1 ± 27.1 and 39.5 ± 22.9 for physical function
- 71.2 ± 36.5 and 51.5 ± 42.7 for physical role
- 66.2 ± 26 and 55.6 ± 28.9 for bodily pain, and
- 60.7 ± 17.1 and 50.7 ± 21.2 for general health, respectively
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