Accuracy of Pedicle Screw Placement in Scoliosis Surgery: A Comparison between Conventional Computed Tomography-Based and O-Arm-Based Navigation Techniques
Asian Spine Journal
;
: 331-338, 2014.
Article
in English
| WPRIM
| ID: wpr-91707
ABSTRACT
STUDY DESIGN:
Retrospective study.PURPOSE:
We compared the accuracy of O-arm-based navigation with computed tomography (CT)-based navigation in scoliotic surgery. OVERVIEW OF LITERATURE No previous reports comparing the results of O-arm-based navigation with conventional CT-based navigation in scoliotic surgery have been published.METHODS:
A total of 222 pedicle screws were implanted in 29 patients using CT-based navigation (group C) and 416 screws were implanted in 32 patients using O-arm-based navigation (group O). Postoperative CT was performed to assess the screw accuracy, using the established Neo classification (grade 0 no perforation, grade 1 perforation or =2 and or =4 mm).RESULTS:
In group C, 188 (84.7%) of the 222 pedicle screw placements were categorized as grade 0, 23 (10.4%) were grade 1, 11 (5.0%) were grade 2, and 0 were grade 3. In group O, 351 (84.4%) of the 416 pedicle screw placements were categorized as grade 0, 52 (12.5%) were grade 1, 13 (3.1%) were grade 2, and 0 were grade 3. Statistical analysis showed no significant difference in the prevalence of grade 2.3 perforations between groups C and O. The time to position one screw, including registration, was 10.9+/-3.2 minutes in group C, but was significantly decreased to 5.4+/-1.1 minutes in group O.CONCLUSIONS:
O-arm-based navigation facilitates pedicle screw insertion as accurately as conventional CT-based navigation. The use of O-arm-based navigation successfully reduced the time, demonstrating advantages in the safety and accuracy of pedicle screw placement for scoliotic surgery.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Scoliosis
/
Spine
/
Prevalence
/
Retrospective Studies
/
Classification
/
Surgery, Computer-Assisted
Type of study:
Observational study
/
Prevalence study
Limits:
Humans
Language:
English
Journal:
Asian Spine Journal
Year:
2014
Type:
Article
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