Device related complications of the Coflex interspinous process implant for the lumbar spine

Device related complications of the Coflex interspinous process implant for the lumbar spine

ZANG Lei;DU Peng;HAI Yong;SU Qing-jun;LU Shi-bao;LIU Tie

【期刊名称】《中华医学杂志（英文版）》 【年(卷),期】2013(126)013

【摘要】Background Coflex,a type of interspinous process implant,can provide intervertebral dynamic stability for surgical segments and effectively relieve lumbocrural pain.However,few studies have described therapeutic strategies and the avoidance of Coflex implant complications.Methods Coflex implant complications in this study included

intraoperative

or

postoperative

spinous

process

fracture,aggravated postoperative lumbocrural pain,dislodgment and malposition.The complications were analyzed,and therapeutic strategies were applied according to the specific complication.The Visual Analogue Scale and Oswestry Disability Index scores were evaluated by using the paired-samples test from SPSS 12.0.Results Conservative treatment was provided to seven patients who experienced aggravated lumbocrural pain even though their devices remained in the correct position,and pedicle screw treatment was used as an alternative in four cases.The Visual Analogue Scale and Oswestry Disability Index scores showed evident improvement in these patients.The Visual Analogue Scale and Oswestry Disability Index scores of two patients who