Use of Computed Tomography Angiography to Predict Complications in Tibia Fractures: A Multicenter Retrospective Analysis.

Abstract

OBJECTIVES:

To assess the ability of computed tomography angiography identified infrapopliteal vascular injury to predict complications in tibia fractures that do not require vascular surgical intervention.

DESIGN:

Multicenter retrospective review.

SETTING:

Six Level I trauma centers.

PATIENTS AND INTERVENTION:

Two hundred seventy-four patients with tibia fractures (OTA/AO 42 or 43) who underwent computed tomography angiography maintained a clinically perfused foot not requiring vascular surgical intervention and were treated with an intramedullary nail. Patients were grouped by the number of vessels below the trifurcation that were injured.

MAIN OUTCOME MEASUREMENTS:

Rates of superficial and deep infection, amputation, unplanned reoperation to promote bone healing (nonunion), and any unplanned reoperation.

RESULTS:

There were 142 fractures in the control (no-injury) group, 87 in the one-vessel injury group, and 45 in the two-vessel injury group. Average follow-up was 2 years. Significantly higher rates of nerve injury and flap coverage after wound breakdown were observed in the two-vessel injury group. The two-vessel injury group had higher rates of deep infection (35.6% vs. 16.9%, P = 0.030) and unplanned reoperation to promote bone healing (44.4% vs. 23.9%, P = 0.019) compared with controls, as well as increased rates of any unplanned reoperation compared with control and one-vessel injury groups (71.1% vs. 39.4% and 51.7%, P < 0.001), respectively. There were no significant differences in rates of superficial infection or amputation.

CONCLUSIONS:

Tibia fractures with two-vessel injuries were associated with higher rates of deep infection and unplanned reoperation to promote bone healing compared with those without vascular injury, as well as increased rates of any unplanned reoperation compared with controls and fractures with one-vessel injury.

LEVEL OF EVIDENCE:

Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.

• Authors: Alexander K Mihas, John C Prather, Bradley K Alexander, Isaac B Boateng, Thomas E Moran, Lacie M Turnbull, Andrew Allen, Healy Vise, Maria S Kammire, Andres F Moreno, Gerald McGwin, Andrew T Chen, Michael T Talerico, William T Obremskey, David B Weiss, Patrick F Bergin, Clay A Spitler, Southeastern Fracture Consortium
• Journal: Journal of orthopaedic trauma (J Orthop Trauma) Vol. 37 Issue 9 Pg. 456-461 (09 01 2023) ISSN: 1531-2291 [Electronic] United States
• PMID: 37074790 (Publication Type: Multicenter Study, Journal Article)
• Copyright: Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.

Topics

• Humans
• Retrospective Studies
• Tibia
• Computed Tomography Angiography
• Vascular System Injuries (diagnostic imaging, surgery)
• Fracture Healing (physiology)
• Tibial Fractures (complications, diagnostic imaging, surgery)
• Treatment Outcome
• Fractures, Open (complications, diagnostic imaging, surgery)