Eldin Mohamed Mohi, Hassan Ahmed Salah Aldin
Department of Neurosurgery, Faculty of Medicine, Cairo University, Cairo, Egypt.
J Craniovertebr Junction Spine. 2017 Apr-Jun;8(2):113-118. doi: 10.4103/jcvjs.JCVJS_43_17.
We introduce a simple free hand technique with great ease of application, without angles, measures or degrees, and without any fluoroscopic guidance. It is a safe and reproducible technique. We present our preliminary experience with the use this technique, with inimitable simplicity.
The primary aim of the procedure was to achieve adequate screw trajectory in an apparent challenging ease which is reproducible with a good outcome.
Lateral mass screw fixation is used for posterior subaxial cervical fixation. It was described by Louis and Magerl, then by Anderson, An, and Ebraheim . Each one described the procedure with a unique screw entrance point and trajectory.
This study is a prospective case study of 45 patients who underwent subaxial cervical lateral mass screw fixation. The screws were inserted using a free hand method. The described free hand technique was found to minimize the morbidity associated with other techniques without compromising the quality of fixation.
Surgical experiences with this technique found it equally safe, rapid, easy, and reproducible.
我们介绍一种简单的徒手技术，应用极为简便，无需角度、测量或度数，也无需任何透视引导。这是一种安全且可重复的技术。我们展示了使用该技术的初步经验，其具有无与伦比的简易性。
该手术的主要目的是在看似具有挑战性的情况下实现合适的螺钉轨迹，且这种轨迹可重复并能带来良好的效果。
侧块螺钉固定用于下颈椎后路固定。Louis和Magerl首先描述了该技术，随后Anderson、An和Ebraheim也进行了描述。他们每个人都以独特的螺钉进钉点和轨迹描述了该手术。
本研究是一项对45例行下颈椎侧块螺钉固定患者的前瞻性病例研究。螺钉采用徒手方法插入。结果发现，所描述的徒手技术在不影响固定质量的情况下，将与其他技术相关的发病率降至最低。
使用该技术的手术经验表明，它同样安全、快速、简便且可重复。
