J Reconstr Microsurg
DOI: 10.1055/s-0040-1717151
Original Article

When is the Critical Time for Soft Tissue Reconstruction of Open Tibia Fracture Patients?

Seung Yeol Lee
1  Department of Orthopaedic Surgery, Myongji Hospital, Hanyang University College of Medicine, Seoul, Republic of Korea
,
Ik Hyun Seong
2  Department of Plastic and Reconstructive Surgery, School of Medicine, Ewha Womans University, Seoul, Republic of Korea
,
Bo Young Park
2  Department of Plastic and Reconstructive Surgery, School of Medicine, Ewha Womans University, Seoul, Republic of Korea
› Author Affiliations
Funding This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (NRF-2017R1D1A1B03035452 and 2019R1A2C2010150).

Abstract

Background The timing of soft tissue reconstruction for soft-tissue defect in patients with open fractures in the lower extremity is known to be critical for successful outcomes. However, medical advances, including development of dressing materials and refinement in the microsurgical techniques, might have undergone modifications in this “critical period.” There have been no studies on the role of timing on reconstructive outcomes. Thus, we have analyzed the effect of reconstruction timing on optimal surgical outcomes and complication rates in a single type of lower extremity injury.

Methods Data of patients who underwent microvascular free tissue transfer with an open fracture in the lower extremity from 2014 through 2016 were retrospectively reviewed (n = 103). Surgical outcomes, including flap complication rate, flap revision rate, and long-term bony complications, were analyzed serially in accordance with time interval until coverage using the receiver operating characteristic (ROC) curve analysis. Significant factors with a p < 0.05 in the univariate analysis were included in the multivariate logistic regression model to identify independent risk factors.

Results A total of 46 patients (33 males and 13 females) were finally included in the study. Based on the association between surgical timing and flap-related complication rate, the best cutoff period for surgery was 33 days, with an area under the curve of 0.658 (p = 0.040). Further, in the revision rate, the cutoff period was identified as 10 days (p = 0.016). Regarding the incidence of bony complications, ROC curve showed that the maximal period until operation was 91 days with no influence on the occurrence of bony complications (p = 0.029).

Conclusion Although the best method is an early reconstruction, many modalities such as negative pressure wound therapy play a role as a temporary measure. Our study suggests that the acute or early period for successful reconstruction might be extended compared with previous studies.



Publication History

Received: 21 April 2020

Accepted: 25 August 2020

Publication Date:
14 October 2020 (online)

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