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Perioperative predictability of unsatisfactory functional outcomes 6 months after hip arthroplasty
Axel Jakuscheit1, Johannes Weth2, Gregor Lichtner2
1Department of Orthopaedic Surgery, University of Wuerzburg, Koenig-Ludwig-Haus, Brettreichstr. 11, 97074, Germany.
Background:
Aiming at an early identification of patients with an unsatisfactory outcome after hip arthroplasty we investigated the pre-, intra- and early postoperative predictability.
Methods:
Using logistic regression models at nine different time points we calculated the area under the curve of the receiver operating characteristic (ROC-AUC) to compare the predictability of an unsatisfactory outcome.
Results:
The predictability of unsatisfactory outcomes increased significantly from a ROC-AUC (95% CI) of 0.73 (0.62-0.84) in the preoperative setting to 0.85 (0.77-0.94) on day 2 after surgery.
Conclusion:
Most of the patients with unsatisfactory outcomes can be identified during the first days after surgery.
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