Sağlam Necdet, Küçükdurmaz Fatih, Kivilcim Hakan, Kurtulmuş Tuhan, Sen Cengiz, Akpinar Fuat
Department of Orthopedics and Traumatology, Ümraniye Training and Research Hospital, İstanbul, Turkey.
Department of Orthopedics and Traumatology, Bezmialem Vakıf University, Faculty of Medicine, İstanbul, Turkey.
Acta Orthop Traumatol Turc. 2014;48(2):196-201. doi: 10.3944/AOTT.2014.3159.
The aim of this study was to compare the biomechanical properties of minimal invasive sliding antirotator compressive hip screw (MIS-A-CHS), and multiple cannulated screws (CS) on a Pauwels type 3 femoral neck fracture model.
A Pauwels type 3 vertical femoral neck fractures was created on 12 third-generation proximal femur models which were divided into two equal groups. The fracture was fixed with three CS in the first group, and MIS-A-CHS in the second group. The axial and rotational stiffness and maximum compression effect were compared between the groups.
The axial and rotational stiffness and maximum compression were significantly higher in MIS-A-CHS group (912.5 N, 540 N and 10.2 N/m, respectively) than the CS group (627.5 N, 380 N, and 3.9 N/m, respectively).
MIS-A-CHS appears to be a more secure fixation method in Pauwels type 3 femoral neck fractures than the CS.
本研究旨在比较微创滑动防旋加压髋螺钉（MIS-A-CHS）和多枚空心螺钉（CS）在 Pauwels Ⅲ型股骨颈骨折模型上的生物力学性能。
在 12 个第三代股骨近端模型上制造 Pauwels Ⅲ型垂直股骨颈骨折，并将其平均分为两组。第一组用 3 枚 CS 固定骨折，第二组用 MIS-A-CHS 固定。比较两组之间的轴向和旋转刚度以及最大压缩效果。
MIS-A-CHS 组的轴向和旋转刚度以及最大压缩力（分别为 912.5 N、540 N 和 10.2 N/m）显著高于 CS 组（分别为 627.5 N、380 N 和 3.9 N/m）。
在 Pauwels Ⅲ型股骨颈骨折中，MIS-A-CHS 似乎是比 CS 更可靠的固定方法。
