Ted Eneqvist1,2,3, Szilárd Nemes4,5, Erik Bülow4,5, Maziar Mohaddes4,5,6, Ola Rolfson4,5,6. 1. Swedish Hip Arthroplasty Register, Sågbladsgatan 11, 41680, Gothenburg, Sweden. ted.eneqvist@vgregion.se. 2. Department of Orthopaedics, Institute of Clinical Sciences, the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden. ted.eneqvist@vgregion.se. 3. Department of Orthopaedics, Sahlgrenska University Hospital, Gothenburg, Sweden. ted.eneqvist@vgregion.se. 4. Swedish Hip Arthroplasty Register, Sågbladsgatan 11, 41680, Gothenburg, Sweden. 5. Department of Orthopaedics, Institute of Clinical Sciences, the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden. 6. Department of Orthopaedics, Sahlgrenska University Hospital, Gothenburg, Sweden.
Abstract
PURPOSE: We investigated if patient-reported outcomes (PROMs) one year after total hip replacement (THR) can predict the risk of re-operation using data from the Swedish Hip Arthroplasty Register. METHODS: A total of 75,899 patients with THR due to osteoarthritis operated in 2002-2014 were included. We used Kaplan-Meier and Cox regression to investigate the relationship between one-year post-operative PROMs and risk of re-operation (all types of further hip surgery). The predictive power of the model and post-operative PROMs were evaluated by concordance index (C). RESULTS: Kaplan-Meier estimates for not being re-operated at eight years was 95.5% (95%CI; 95.3-95.8). Cox regression analyses showed that all PROMs, except for EQ-VAS, were associated with re-operation. The full model had a concordance index of 0.68. Satisfaction (C = 0.65) and pain (C = 0.65) in isolation had the highest predictive power. CONCLUSIONS: Worse PROMs predicted higher risk of re-operation. Therefore, we believe PROMs may be helpful in identifying patients at risk for re-operation and timely address their problems.
PURPOSE: We investigated if patient-reported outcomes (PROMs) one year after total hip replacement (THR) can predict the risk of re-operation using data from the Swedish Hip Arthroplasty Register. METHODS: A total of 75,899 patients with THR due to osteoarthritis operated in 2002-2014 were included. We used Kaplan-Meier and Cox regression to investigate the relationship between one-year post-operative PROMs and risk of re-operation (all types of further hip surgery). The predictive power of the model and post-operative PROMs were evaluated by concordance index (C). RESULTS: Kaplan-Meier estimates for not being re-operated at eight years was 95.5% (95%CI; 95.3-95.8). Cox regression analyses showed that all PROMs, except for EQ-VAS, were associated with re-operation. The full model had a concordance index of 0.68. Satisfaction (C = 0.65) and pain (C = 0.65) in isolation had the highest predictive power. CONCLUSIONS: Worse PROMs predicted higher risk of re-operation. Therefore, we believe PROMs may be helpful in identifying patients at risk for re-operation and timely address their problems.
Entities:
Keywords:
Patient-reported outcome measurements; Prediction; Re-operation; Total hip replacement
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