选择性节段椎弓根螺钉 selective segmental pedicle screws ; SSPS
目的：评价在轻度退变的邻近节段行单纯后外侧植骨预防腰椎融合术后邻近节段退变的临床疗效，探讨其适应症的选择。
Object: to evaluate the clinical effect of posterolateral bone graft fusion to pretend the adjacent segment degeneration after lumbar fusion and discuss the indication.
数字减影血管造影前采用多层ct血管造影检查可以帮助在特定脊柱节段行选择性导管血管造影。
The use of MDCTA preceding DSA can be helpful to focus the selective catheter angiography on certain spinal levels.
手术入路改变1例，上融合节段改变19例，下融合节段改变29例，是否行主胸弯选择性融合改变1例。
One of these cases was changed in surgical approach and need selective fusion of main thoracic curve, 19 in upper instrumented vertebra and 29 in lower instrumented vertebra.
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