Is There a Difference in Screw Accuracy, Robot Time Per Screw, Robot Abandonment, and Radiation Exposure Between the Mazor X and the Renaissance? A Propensity-Matched Analysis of 1179 Robot-Assisted Screws.
Global Spine J
; 13(5): 1286-1292, 2023 Jun.
Article
in En
| MEDLINE
| ID: mdl-34235996
ABSTRACT
STUDY DESIGN:
Prospective single-cohort analysis.OBJECTIVES:
To compare the outcomes/complications of 2 robotic systems for spine surgery.METHODS:
Adult patients (≥18-years-old) who underwent robot-assisted spine surgery from 2016-2019 were assessed. A propensity score matching (PSM) algorithm was used to match Mazor X to Renaissance cases. Preoperative CT scan for planning and an intraoperative O-arm for screw evaluation were preformed. Outcomes included screw accuracy, robot time/screw, robot abandonment, and radiation. Screw accuracy was measured using Vitrea Core software by 2 orthopedic surgeons. Screw breach was measured according to the Gertzbein/Robbins classification.RESULTS:
After PSA, a total of 65 patients (Renaissance 22 vs. X 43) were included. Patient/operative factors were similar between robot systems (P > .05). The pedicle screw accuracy was similar between robots (Renaissance 1.1%% vs. X 1.3%, P = .786); however, the S2AI screw breach rate was significantly lower for the X (Renaissance 9.5% vs. X 1.2%, P = .025). Robot time per screw was not statistically different (Renaissance 4.6 minutes vs. X 3.9 minutes, P = .246). The X was more reliable with an abandonment rate of 2.3% vs. Renaissance22.7%, P = .007. Radiation exposure were not different between robot systems. Non-robot related complications including dural tear, loss of motor/sensory function, and blood transfusion were similar between robot systems.CONCLUSION:
This is the first comparative analyses of screw accuracy, robot time/screw, robot abandonment, and radiation exposure between the Mazor X and Renaissance systems. There are substantial improvements in the X robot, particularly in the perioperative planning processes, which likely contribute to the X's superiority in S2AI screw accuracy by nearly 8-fold and robot reliability by nearly 10-fold.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Type of study:
Observational_studies
Language:
En
Journal:
Global Spine J
Year:
2023
Document type:
Article
Affiliation country:
Estados Unidos