Sariyilmaz Kerim, Ozkunt Okan, Karademir Gokhan, Gemalmaz Halil Can, Dikici Fatih, Domanic Unsal
Department of Orthopaedics and Traumatology, Acibadem University School of Medicine Department of Orthopaedics and Traumatology, Istanbul Medical School, Istanbul University, Istanbul, Turkey.
Medicine (Baltimore). 2018 Jan;97(2):e9581. doi: 10.1097/MD.0000000000009581.
The aim of this study is to compare the effects of high versus low implant density on correction in Lenke type 5 adolescent idiopathic scoliosis (AIS) patients. A retrospective study of 59 Lenke type 5 AIS patients treated at a single institution were divided into to 2 groups according to implant density. Implant density, preoperative, early postoperative, and last follow-up thoracolumbar/lumbar (TL/L) curves were measured. Thirty-one constructs were high and 28 constructs were low density. The groups were similar in terms of age, sex, Cobb angle, and follow-up time. Mean implant density in low density group and high density group was 75.4% and 96.6%, respectively. High versus low-density comparison showed that there is no significant difference with regard to curve correction in early postoperative and last follow-up periods. The results show that pedicle screw density being low or high, does not affect curve correction rates in the short and long term in our patients.
本研究的目的是比较高植入物密度与低植入物密度对Lenke 5型青少年特发性脊柱侧凸（AIS）患者矫正效果的影响。对在单一机构接受治疗的59例Lenke 5型AIS患者进行回顾性研究，根据植入物密度将其分为2组。测量植入物密度、术前、术后早期及末次随访时的胸腰段/腰段（TL/L）曲线。31个结构为高植入物密度，28个结构为低植入物密度。两组在年龄、性别、Cobb角和随访时间方面相似。低密度组和高密度组的平均植入物密度分别为75.4%和96.6%。高植入物密度与低植入物密度的比较显示，术后早期和末次随访时在曲线矫正方面无显著差异。结果表明，在我们的患者中，椎弓根螺钉密度高低在短期和长期内均不影响曲线矫正率。
