Аннотация:The authors conducted a retrospective and prospective analysis of the results of 350
operations using the image intensifier tube, 390 operations with O arm and 11 operations with O
arm and the Stealth-Station navigation station (Medtronic, USA).
To the 350 patients operated on using the image intensifier, 1822 screws were implanted,
on average 5.2 screws per operation. 117 (6.5%) screws were implanted incorrectly, of which a
permissible or clinically insignificant malposition of the screw was noted in 90 (4.9%) patients.
Incorrectly installed screws remaining in 27 (1.5%) patients required revision surgery.
To 390 patients operated with O arm, 2477 screws were implanted, on average 6.3 screws
during one operation. Incorrectly 33 (1.3%) screws were implanted, of which 25 screws were
acceptable malposition. Invalid malposition of 8 (0.3%) screws was eliminated during the current
operation.
Comparative studies of the total number of incorrectly implanted screws during operations
using the image intensifier tube and O arm showed that they were more often observed when
using the image intensifier tube (p <0.001) and there was no unacceptable malposition of the
screws when performing the operation under O arm, since it was diagnosed in time during current
operation and eliminated.
A total of 66 screws were implanted in 11 patients operated using O arm and the Stealth-
Station navigation station, an average of 6 screws during one operation. Inaccurate implantation
of screws was not observed in any patient.