Gómez-Benito M J, Moreo P, Pérez M A, Paseta O, García-Aznar J M, Barrios C, Doblaré M
Aragón Institute of Engineering Research (I3A), University of Zaragoza, CIBER-BNN Networking Center on Bioengineering, Biomaterials and Nanomedice ICS-Aragón Institute of Health Science, María de Luna s/n, 50018 Zaragoza, Spain.
J Biomech. 2007;40(15):3305-13. doi: 10.1016/j.jbiomech.2007.04.018. Epub 2007 Jul 2.
Despite slipped capital femoral epiphysis (SCFE) being one of the most common disorders of the adolescent hip, its early diagnosis is quite difficult. The main objective of this work is to apply an interface damage model to predict the failure of the bone-growth plate-bone interface. This model allows to evaluate the risk of development of SCFE and to investigate the range of mechanical properties of the physis that may cause slippage of the plate. This paper also studies the influence of different geometrical parameters and body weight of the patient on the development of SCFE. We have demonstrated, thanks to the proposed model, that higher physeal sloping and posterior sloping angles are associated to a higher probability of development of SCFE. In a similar way, increasing body weight results in a more probable slippage.
尽管股骨头骨骺滑脱(SCFE)是青少年髋关节最常见的疾病之一,但其早期诊断相当困难。这项工作的主要目的是应用界面损伤模型来预测骨 - 生长板 - 骨界面的失效。该模型能够评估SCFE发生的风险,并研究可能导致生长板滑脱的物理特性范围。本文还研究了不同几何参数和患者体重对SCFE发生的影响。通过所提出的模型,我们已经证明,较高的骨骺倾斜度和后倾斜角度与SCFE发生的较高概率相关。同样,体重增加会导致更可能发生滑脱。