• G Papotto, G Milordo, S Comitini, G C Salvo, A Palmeri, F Costanzo, G F Longo, and M Ganci.
• Department of Othopedic Surgery, Trauma Center, Cannizzaro Hospital 95100 Catania, Italy. Electronic address: giacomopapotto@gmail.com.
• Injury. 2024 Sep 1; 55 Suppl 4: 111534111534.

IntroDistal growth core fractures of the femur are the third most common fracture in patients older than 10 years. These fractures result from high-energy trauma and have a high risk of evolving into growth disorders. The classification most used to describe these types of fractures is that described by Salter and Harris. Special clinical cases often occur in clinical practice that are not described in the classifications used. In our study, we analyzed and further focused on new fracture patterns related to pediatric epiphyseal detachments not easily described by the normal classifications currently used in the literature.Materials And MethodsFrom January 2020 to December 2022, we treated 2 male clinical cases with epiphyseal detachments of the distal femur that could not be classified according to the Salter and Harris classification. Age of the patients was 10 and 11 years, respectively; for both patients, the traumatic mechanism was a direct trauma to the right knee at high speed using an electric scooter; Serious clinical and radiographic follow-ups were performed at month 1, month 3, month 6, month 12, and month 24 from the date of surgery.DiscussionDistal femur fractures represent a challenge because they have a high incidence of complications. In our experience, there has been an increase in this type of injury caused using recently developed electric vehicles, which can reach considerable speeds. The Salter Harris classification is among the most widely used for fractures involving the growth physis. This classification proved to be rather limiting in the present case, so we decided to classify the fracture as 'Salter Harris III equivalent'.ConclusionsThe fracture examined is a very rare fracture of the distal femur and is not reflected in the classifications currently in use. The patient presented an excellent clinical and radiographic result after surgery with the presence of a shortening of the affected femur in relation to the contralateral one, which suggests that the growth deficit may continue and increase over time for which reason future studies until skeletal maturity will be necessary to quantify the damage to the growth physis.Copyright © 2024 Elsevier Ltd. All rights reserved.

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