PURPOSE To evaluate the clinical and radiological outcomes for patients who undergone posterior-only lumbosacral hemivertebrectomy with short fusion with minimum two year follow-up. METHODS From 2005 to 2016, a consecutive series of 16 paediatrics scoliosis due to lumbosacral hemivertebrae were included in this study. They were treated by one stage posterior hemivertebrae resection with bilateral or unilateral short fusion. Coronal and sagittal parameters and pelvic obliquity were measured at pre-operatively, immediate post-operatively and at final follow-up. The outcome and efficacy of the correction were investigated. RESULTS The mean age was 10.4 ± 3.4 years (3-15 years). The mean follow-up period was 38.8 ± 16.2 months (24-79 months). The mean segmental scoliosis was 35.4 ± 9.2 and 7.7 ± 5.4 pre-operatively and post-operatively (78.4% correction rate) and 8.2 ± 5.0 (77%) at the latest follow-up. The compensatory coronal curve of 28.6 ± 16.1 was spontaneously corrected to 8.0 ± 8.4 in post-operatively 12.0 ± 8.4 at final follow-up. Trunk shift was significantly improved on both coronal (RTS 86.1%) and sagittal plane (68.7%) after the surgery and kept stable during the follow-up. Sacral tilt of 14.2 ± 5.3 was significantly improved to 4.7 ± 3.6 at final follow-up. There was no significant difference between bilateral and unilateral instrumentation groups (P > 0.05). One case had implants failure, and the incidence rate is 6.3%. CONCLUSIONS Early posterior hemivertebrectomy with short fusion is effective in the treatment of lumbosacral hemivertebrae. It can achieve good coronal curve correction, sacral tilt, and trunk shift improvement. No neurological complications were found. Importantly, it can prevent secondary structural deformities and potentially save fusion level.

中文翻译：

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小儿脊柱侧弯仅行腰s半椎切除和融合，至少两年的随访。

目的评估仅接受后路腰ac半椎切除术并进行短期融合并至少随访两年的患者的临床和影像学结果。方法从2005年至2016年，本研究包括连续16例因腰s半椎引起的儿童脊柱侧弯。通过双侧或单侧短融合的一期后半椎切除术对其进行治疗。在术前，术后即刻和最终随访时测量冠状和矢状参数以及骨盆倾斜度。研究了矫正的结果和功效。结果平均年龄为10.4±3.4岁（3-15岁）。平均随访时间为38.8±16.2个月（24-79个月）。术前和术后平均节段性脊柱侧弯分别为35.4±9.2和7.7±5.4（78。最近一次随访的矫正率为4％）和8.2±5.0（77％）。在最后一次随访中，术后12.0±8.4自发地将28.6±16.1的冠状代偿曲线校正为8.0±8.4。术后，躯干移位在冠状动脉（RTS 86.1％）和矢状平面（68.7％）上均得到显着改善，并且在随访期间保持稳定。最终随访时，骨倾斜度为14.2±5.3，明显改善为4.7±3.6。双侧和单侧器械组之间无显着差异（P> 0.05）。1例植入失败，发生率为6.3％。结论早期后路半椎切除加短融合术可有效治疗腰vert半椎。它可以实现良好的冠状曲线矫正，骨倾斜和躯干移位改善。未发现神经系统并发症。重要的是，它可以防止继发性结构变形并潜在地节省融合水平。