Department of Orthopedics, Yale University School of Medicine, 47 College Street 2nd Floor, New Haven, CT, 06510, USA.
Eur J Orthop Surg Traumatol. 2024 Aug;34(6):3373-3376. doi: 10.1007/s00590-024-04053-y. Epub 2024 Jul 29.
The femoral neck system (FNS) was recently introduced for treatment of femoral neck fractures. A novel feature is an anti-rotation screw with a diverging design from the neck bolt to provide rotational stability. Using the 4 Nm torque limiting screwdriver might cause the incomplete insertion of the screw specifically in dense or sclerotic bone. A nontorque limiting manual screwdriver should be used to complete the insertion and locking of the screw to prevent this error. We present series of seven cases with incomplete insertion of the anti-rotation screw in patient with femoral neck fractures treated with the FNS.
股骨颈系统（FNS）最近被引入用于治疗股骨颈骨折。其一个新颖的特点是带有发散设计的抗旋螺钉，从颈螺栓开始提供旋转稳定性。使用 4Nm 扭矩限制螺丝刀可能会导致螺钉无法完全插入，特别是在致密或硬化的骨中。应使用非扭矩限制手动螺丝刀完成螺钉的插入和锁定，以防止这种错误。我们报告了 7 例股骨颈骨折患者使用 FNS 治疗时出现抗旋螺钉不完全插入的病例系列。
