与多枚空心螺钉固定相比，使用股骨颈系统时转子下应力性骨折的风险会增加吗？
Is there an increased risk for subtrochanteric stress fracture with the Femoral Neck System versus multiple cannulated screws fixation?
作者信息
Hsu Megan R, Shu Henry T, Luksameearunothai Kitchai, Margalit Adam, Yu Andrew T, Hasenboehler Erik A, Shafiq Babar
机构信息
Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA.
Department of Orthopaedic Surgery, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand.
出版信息
J Orthop. 2022 Feb 16;30:127-133. doi: 10.1016/j.jor.2022.02.016. eCollection 2022 Mar-Apr.
Abstract
PURPOSE
This study sought to compare the risk of subtrochanteric stress-riser fractures and biomechanical stability of the Femoral Neck System (FNS) versus multiple screw fixation (MSF).
METHODS
Eight paired cadaveric femurs were randomly assigned to FNS or MSF. Physiologic load mimicking single leg stance at the subtrochanteric region was applied to the constructs.
RESULTS
No constructs failed in the subtrochanteric region during loading. There was no significant difference in force (P = 0.364) or loading cycles (P = 0.348) between groups.
CONCLUSION
FNS constructs were not associated with an increased incidence of iatrogenic subtrochanteric fractures or biomechanical stability versus MSF.
摘要
目的
本研究旨在比较股骨近端髓内钉系统（FNS）与多枚螺钉固定（MSF）治疗股骨转子下应力性骨折的风险及生物力学稳定性。
方法
将八对尸体股骨随机分为FNS组或MSF组。在股骨转子下区域模拟单腿站立的生理负荷应用于构建物。
结果
加载过程中，股骨转子下区域的构建物均未失效。两组之间在力（P = 0.364）或加载循环次数（P = 0.348）方面无显著差异。
结论
与MSF相比，FNS构建物与医源性股骨转子下骨折的发生率增加或生物力学稳定性无关。
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