Application of double-pivot extracorporeal reduction devices in internal fixation with percutaneous pedicle screw for thoracolumbar fractures
10.3760/cma.j.issn.1671-7600.2016.12.012
- VernacularTitle:双支点体外撑开器在经皮椎弓根螺钉治疗胸腰椎骨折中的应用
- Author:
Wei ZOU
;
Jie XIAO
;
Hao LONG
;
Chen WU
;
Mingxing FENG
;
Changjun ZHOU
;
Yuhui DU
- Keywords:
Thoracic vertebrae;
Lumber vertebrae;
Fracture fixation,internal;
Bone nails;
Surgical procedures,minimally invasive
- From:
Chinese Journal of Orthopaedic Trauma
2016;18(12):1075-1081
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the clinical results of self-designed double-pivot extracorporeal reduction device in internal fixation with percutaneous pedicle screws for thoracolumbar fractures.Methods From January 2014 to May 2015,a total of 41 patients with thoracolumbar fracture without neurological symptoms underwent minimally invasive fixation with percutaneous pedicle screws.Of them,22 were treated with our self-designed double-pivot extracorporeal reduction device and the other 20 with common single-pivot extracorporeal reduction device.The 2 groups were compared in terms of pre-and postoperative kyphotic angles,correction rates and anterior,middle and posterior heights of injured vertebrae to evaluate the therapeutic effects of the self-designed double-pivot extracorporeal reduction device.Results The patients were followed up for 6 to 18 months (average,12.3 months).No iatrogenic impairment of nerve root,postoperative infection,or implant failure happened.Compared with preoperation,significant improvements were observed in all the patients regarding cobb's angle,anterior,middle and posterior heights of the fractured vertebral body (P ＜ 0.05).Compared with the single-pivot group,the double-pivot group were significantly superior in the kyphotic angle,correction rate,and anterior and middle heights of the injured vertebrae(P ＜ 0.05),but there was no significant difference between the 2 groups in the recovery of posterior height of the fractured vertebral body (P ＞ 0.05).Conclusion Compared with the single-pivot reduction device,the self-designed double-pivot reduction device may be preferable in percutaneous pedicle screw fixation for thoracolumbar fractures.
