Objective. Define the T1 and T2 anatomic lamina size and evaluate the bone-screw interface strength of various pedicle screw options and intralamina techniques.

• 目标：确认胸1、2椎板的解剖尺寸，评估椎弓根螺钉和椎板固定螺钉的骨螺钉界面的生物强度。