Do not search for stimuli; keep both eyes on the fixation point.
不要主动去找激励点，保持你的双眼一直盯着中间的固定点。
Objective: To explore the correlative of the internal fixation point of the lower thoracic spine.
目的：探讨下胸椎侧前方入路内固定进针点的相关问题。
Conclusions: To confirm the internal fixation point, the author build the reference frame by the costal fovea.
结论：以肋凹作为参照物，建立坐标系，确定进针点的位置，不仅可用于术前估计。
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