Clinical contrast of cervical pedicle screw fixation assisted by C-arm fluoroscopy or 3D navigation system.
- Author:
Wei TIAN
1
;
Ya-jun LIU
;
Bo LIU
;
Qin LI
;
Lin HU
;
Zhi-yu LI
;
Qiang YUAN
Author Information
- Publication Type:Journal Article
- MeSH: Adult; Aged; Bone Screws; Cervical Vertebrae; surgery; Female; Fluoroscopy; Fracture Fixation, Internal; methods; Humans; Imaging, Three-Dimensional; Male; Middle Aged; Surgery, Computer-Assisted; Young Adult
- From: Chinese Journal of Surgery 2006;44(20):1399-1402
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo evaluate the feasibility and accuracy of cervical (C(2)-C(7)) pedicle screw fixation assisted by C-arm fluoroscopy or 3D navigation system (CT-based navigation system or Iso-C 3D navigation system).
METHODSOne hundred and forty-five cervical pedicle screws inserted with C-arm fluoroscopy and 187 pedicle screws inserted with 3D navigation system were observed by postoperative CT or Iso-C 3D scan. The process of navigation was investigated.
RESULTSIn the 145 screws inserted with C-arm fluoroscopy, 133 screws are accurate (91.7%), and in the 187 screws inserted by 3D navigation system, 183 screws are accurate (97.9%) (chi2 = 6.705, P = 0.010), and the 4 misplaced screws occurred in the early stage of navigation system application. The process of navigation was investigated in twenty-five patients. With CT-based navigation, the mean time for registration and surface matching was 3.5 minutes; with Iso-C 3D navigation, the mean time for images collection and transfer was 6.2 minutes. The mean time for screw-marker insertion was 2 minutes.
CONCLUSIONS3D navigation system can increase accuracy of cervical pedicle screw fixation obviously.
