• María Camila García-Serrano, Luisa Fernanda García-Guerrero, Amparo Gómez-Gelvez, and Andrés Alberto Pinzón-Rendón.
• Orthopedic surgeon, Pontificia Universidad Javeriana, Bogotá, Colombia. Electronic address: mariacamilagarciaserrano@gmail.com.
• Injury. 2021 Jun 1; 52 (6): 1445-1449.

IntroductionHip fractures are a pathology that have emerged as a major subject over the years, due to increased prevalence and the multiple surgical treatments involved. The characterization and classification of the lesion is essential for proper surgical planning, with anteroposterior (AP), lateral and traction radiograph of the hip, paramount for decision-making.Patients And MethodsThis is a retrospective concordance study of 64 patients with hip fracture who consulted the hospital between January and July 2017. Four radiographs were taken of each: AP, AP with traction, lateral and lateral with traction. This set of images was evaluated by 9 observers, with different levels of experience, to answer questions regarding the classification, emphasize in potential instability and requirement of other images. A statistical analysis of concordance between and within observers was performed using Cohen's kappa coefficient.ResultsOf the 64 patients, 70.6% were women; the average age was 69.5 years. 82.8% presented a secondary fracture from falling from their own height. As the observer's experience increases, the need for traction radiograph decreases; interobserver kappa goes from 0.98 in experts to 0.01 in students. Traction radiograph is important in the diagnosis of potentially unstable fractures. Of the 1,503 radiographs with traction, 636 (42.38%) were classified as potentially unstable. And of the 708 without traction, 560 (79.1%) were classified as potentially unstable.ConclusionsTraction hip radiograph continues to be a useful tool in training environments to adequately classify an intertrochanteric fracture, considering it is a low-cost, minimal morbidity intervention, and is easily accessible. In similar studies, we found similar findings regarding the usefulness of traction to perform an adequate classification in people in training or in young orthopedists. It also influences to determine the potential instability, and this would modify the choice of the implant.Copyright © 2020 Elsevier Ltd. All rights reserved.

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