Huang Weimin, Chang Zhengqi, Song Ruoxian, Zhou Ke, Yu Xiuchun
Department of Orthopedics, General Hospital of Jinan Military Commanding Region, NO. 25 Shifan Road, Jinan, Shandong, 250031, People's Republic of China.
BMC Musculoskelet Disord. 2016 Feb 1;17:53. doi: 10.1186/s12891-016-0913-2.
Polyetheretherketone (PEEK) rod system is a novel pedicle-based dynamic stabilization system. This study evaluated clinical and radiographic outcomes of non-fusion surgery by PEEK rod systems for treatment of degenerative lumbar diseases with a 2-year follow-up.
From February 2012 to October 2012, 38 patients who underwent non-fusion surgery using PEEK rod systems were included in the study. Data on Oswestry Disability Index (ODI) score and Japanese Orthopaedics Association (JOA) score were collected and radiographs were obtained to evaluate disc height index (DHI) and range of motion (ROM) at each interval.
Both JOA and ODI scores significantly improved postoperatively. DHI showed a slight increase immediately after the surgery but gradually dropped below preoperative levels. Mean ROM values changed from 8.8° preoperatively to 1.8° at the 2-year follow-up point. Screw loosening occurred in one case at the 2-year follow-up.
The preliminary results indicated a significant improvement in clinical outcomes and advantageous implant safety. The non-fusion procedure using PEEK rod systems might be a viable alternative for treatment of lumbar degenerative diseases. The distraction technique needs to be improved for better postoperative DHI.
聚醚醚酮（PEEK）棒系统是一种新型的基于椎弓根的动态稳定系统。本研究通过对使用PEEK棒系统进行非融合手术治疗退行性腰椎疾病的患者进行2年随访，评估其临床和影像学结果。
2012年2月至2012年10月，38例行PEEK棒系统非融合手术的患者纳入本研究。收集Oswestry功能障碍指数（ODI）评分和日本骨科协会（JOA）评分数据，并拍摄X线片以评估各时间点的椎间盘高度指数（DHI）和活动范围（ROM）。
术后JOA和ODI评分均显著改善。DHI在术后立即略有增加，但逐渐降至术前水平以下。平均ROM值从术前的8.8°变为2年随访时的1.8°。2年随访时有1例出现螺钉松动。
初步结果表明临床结果有显著改善且植入物安全性良好。使用PEEK棒系统的非融合手术可能是治疗腰椎退行性疾病的一种可行替代方法。为了获得更好的术后DHI，需要改进撑开技术。
