Frailty Is a Predictor of Immediate Postoperative Complications Following Surgical Management of Knee Dislocations

Author Type(s)

Student

Document Type

Article

Publication Date

7-1-2024

DOI

10.1007/s00590-024-03941-7

Journal Title

European Journal of Orthopaedic Surgery and Traumatology

Keywords

Complications, Frailty, Knee dislocation, Obesity, Vascular injury

Disciplines

Medicine and Health Sciences

Abstract

Purpose: To assess the utility of frailty in predicting outcomes following surgical intervention for KDs. Methods: The NIS database was queried for non-congenital knee dislocations from 2015 to 2019 that underwent ligament repair or surgical reduction. Patients were assigned frailty scores using the mFI-11, and outcomes were compared. Multivariate regression and ROC curve analysis were used to assess the independent association of obesity, frailty, VI, and age with adverse outcomes. Results: A total of 3797 patients who underwent surgical management were included. Frailty was associated with extended LOS (OR 1.353, 95% CI 1.212–1.510, p < 0.001), adverse discharge (OR 1.716, 95% CI 1.515–1.946, p < 0.001), and complications (OR 1.449, 95% CI 1.352–1.553, p < 0.001). Severely frailty was associated with extended LOS (OR 1.838, 95% CI 1.611–2.097, p < 0.001), adverse discharge (OR 2.756, 95% CI 2.394–3.171, p < 0.001), and complications (OR 1.603, 95% CI 1.453–1.768, p < 0.001). Additionally, VI was a risk factor for extended LOS (OR 7.647 (6.442–9.076) p < 0.001), complications (OR 2.065 (1.810–2.341) p < 0.001), and adverse discharge (OR 1.825 (1.606–2.075), p < 0.001). Obesity was a risk factor for extended LOS (OR 1.599 (1.470–1.739), p < 0.001) and complications (OR 1.235 (1.108–1.377), p < 0.001). AUC analysis showed that frailty was the most accurate predictor of all outcomes when compared to VI, obesity, and age. Conclusions: Frailty is superior to age and obesity, and comparable to VI, at predicting adverse outcomes following surgical management of KDs. These findings suggest that frailty assessment might play a role in risk stratification and preoperative planning for KD patients that require surgical intervention.

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