Cell biochemistry and biophysics
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Cell Biochem. Biophys. · Sep 2015
Translaminar Screw Fixation in the Upper Thoracic Spine: Computed Tomography-Based Quantitative Laminar Analysis and Feasibility Study of Translaminar Virtual Screw Placement.
Translaminar screws (TLS) offer an alternative to pedicle screw fixation in the upper thoracic spine. Although some studies have described the anatomy of the laminae at the upper thoracic spine, computed tomography (CT) imaging is the modality of choice for presurgical planning. The characteristics of upper thoracic lamina in healthy Han adults have not been ascertained for the safe placement of TLSs. ⋯ Based on the CT evaluation, there are no anatomical limitations to the placement of TLSs at T1-3 in Chinese patients. Gender differences were noted in the superior thoracic vertebrae for dimensions of the laminae, which must be considered when placing TLSs at these levels. The TLSs add to the surgeon's armamentarium for instrumented fixation of the upper thoracic vertebrae.