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Identifying Risk Factors for Poor Outcomes Following Popliteal Vascular Injuries
John R Layman1, Jaime Benarroch-Gampel2, Jason D Sciarretta3
1Medical College of Georgia Augusta University/University of Georgia Medical Partnership, Athens, GA, USA.
Background:
Popliteal artery injuries (PAIs) may have amputation rates as high as 20%. This study focuses on identifying risk factors associated with major amputations following PAIs in a large single-center cohort. Additionally, we assess the impact of repairing or ligating concomitant popliteal vein injuries.
Methods:
A retrospective chart review encompassing 2011 to 2023 was conducted at a large urban level 1 trauma center. Patients with PAIs were included. Demographics and clinical data were analyzed, and univariate and multivariate evaluations identified significant risk factors for amputation. In patients with concomitant popliteal vein injuries, we compared outcomes between those who underwent popliteal vein repair and ligation.
Results:
One hundred eighty eight patients with PAIs were identified; 10 underwent index amputation and were excluded. Univariate analysis followed by multivariate analysis revealed that obesity (P = 0.0132) and neurologic deficits on arrival (P = 0.0096) were associated with amputation. In the subgroup with popliteal vein injuries (N = 93), there was no significant difference in amputation rates between those who had vein repair (P = 0.21) and those who underwent ligation (P = 0.84) on logistic regression analysis. Likewise, popliteal vein ligation did not impact duration of fasciotomy closure (P = 0.20) or skin graft area (P = 0.48) based on linear regression analysis.
Conclusions:
Our study suggests that major amputations following PAIs are more likely in obese patients with neurologic deficits. It also suggests that venous ligation in cases of concomitant popliteal vein injuries does not significantly impact early limb salvage rate. Further research is needed to determine the optimal approach for managing concomitant popliteal vein injuries.
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