下胸椎侧前方椎体钉内固定置入点的相关解剖学测量(英文)

Anatomic measurements of internal fixation-related implantation points of inferior thoracic spinal latero-anterior vertebral screws

背景:有关成人下胸椎侧前方椎体钉进钉点位置的报道较多,由于种族、地域等差异及椎体形态变异较大,其置钉点的选择也不尽相同。目的:为临床下胸椎侧前方固定以肋凹为参照物置钉提供解剖学参考。方法:用游标卡尺测量20具成人尸体脊柱标本进行观察和肋凹解剖数据。结果与结论:随着椎序的增加,脊柱标本椎体横径逐渐增大,肋凹上、下缘与上终板的距离逐渐增大,肋凹上、下缘与下终板的距离逐渐减小,肋凹前缘与椎管前缘的距离逐渐减小。结果证实,下胸椎肋凹的解剖位置是有规律可循的,肋凹是下胸椎侧前方内固定置钉简单、恒定、可靠的置钉点参照物。

BACKGROUND： There are many reports on the entrance point of adult inferior thoracic spinal latero-anterior screw, Because of the differences in race, districts and the shape of vertebral body are various, and the choice of screw placement position is also varied, OBJECTIVE： To provide an anatomical reference for the implantation of clinical screws for inferior thoracic spinal latero-anterior fixation with the concave rib set as a reference, METHODS： Spinal specimens from 20 adult cadavers were observed, and anatomical data were collected from the concave ribs. One vernier caliper was used for the measurements. RESULTS AND CONCLUSION： The thoracic transverse diameters and the distance between the upper and the inferior edge of the concave rib and upper endpiate increased gradually as the vertebral number increased, whereas the distances between the upper and the inferior edge of the concave rib and inferior endplate and between the anterior edge of the concave rib and anterior edge of the vertebral canal decreased gradually. Above findings suggested that the anatomical positions of the inferior thoracic concave ribs followed a set of rules. The concave rib could be used as a simple, constant, and reliable reference point for inferior thoracic spinal latero-anterior fixation screw placement.