Perioperative predictability of unsatisfactory functional outcomes 6 months after hip arthroplasty

Axel Jakuscheit; Johannes Weth; Gregor Lichtner; Konstantin Horas; Benno Rehberg-Klug; Falk von Dincklage

doi:10.1016/j.jor.2021.02.014

Perioperative predictability of unsatisfactory functional outcomes 6 months after hip arthroplasty

J Orthop. 2021 Feb 13:24:34-41. doi: 10.1016/j.jor.2021.02.014. eCollection 2021 Mar-Apr.

Authors

Axel Jakuscheit¹, Johannes Weth², Gregor Lichtner², Konstantin Horas¹, Benno Rehberg-Klug³, Falk von Dincklage²

Affiliations

¹ Department of Orthopaedic Surgery, University of Wuerzburg, Koenig-Ludwig-Haus, Brettreichstr. 11, 97074, Germany.
² Department of Anaesthesiology and Intensive Care Medicine, Campus Charité Mitte and Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.
³ Département d'Anesthésiologie, Pharmacologie et SIC, Hôpitaux Universitaires de Genève HUG, Rue Gabrielle-Perret-Gentil 4, 1205, Genève, Switzerland.

Abstract

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.

Keywords: Functional outcome; Hip arthroplasty; Postoperative pain; Prediction model.