COMPARISON OF THE USE OF PEDICLE SUBTRACTION OSTEOTOMY (PSO) IN PRIMARY AND REVISION OPERATIONS

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Abstract


Purpose of study: to evaluate clinical and roentgenologic results of the use of pedicle subtraction osteotomy (PSO) in primary and revision operations to determine the feasibility of radical spinal sagittal imbalance correction at primary surgical intervention.Patients and methods. Retrospective review of 42 patients (30 men and 12 women, mean age — 58.5 years) with rigid spinal deformities who underwent PSO was performed. Revision interventions (group R) were performed in 23 cases, primary (group P) — in 19 cases. The comparative analysis of spino-pelvic parameters and global spine balance, demographic indices, volume of intraoperative blood loss, duration of surgical intervention, complications in the late postoperative period and quality-of-life indices by SRS-22 and ODI scores was performed. Results. Minimum follow up period was 12 months. Osteotomy was more often performed at L3 level. No differences in the extent of fixation, duration of surgical intervention and degree of segmental correction were detected. The average blood loss was significantly lower in group P (p<0.05). Analysis of the late postoperative period changes in roentgenologic parameters showed statistically significant differences for the lumbar lordosis index as well as inconsistency between the lumbar lordosis and pelvic index that were better in group P. Quality of life increased significantly in both groups with the only statistically significant difference in ODI that was better in group P. Serious complications were observed in 47.8 and 38.6% of cases in group R and group P, respectively (p<0.05). Revision interventions were required in 26.1% of cases in group R and in 15.8% — in group P. Conclusion. In primary surgical interventions use of PSO technique enables to correct global spinal sagittal balance more effectively. Its use in primary interventions ensures lower volume of intraoperative blood loss as well as lower risk of pseudarthrosis formation and neurologic disorders development.


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About the authors

A. A. Panteleev

N.N. Priorov National Medical Research Center of Traumatology and Orthopaedics

Author for correspondence.
Email: apanteleyev@gmail.com

D. S. Gorbatyuk

N.N. Priorov National Medical Research Center of Traumatology and Orthopaedics

Email: info@eco-vector.com

M. L. Sazhnev

N.N. Priorov National Medical Research Center of Traumatology and Orthopaedics

Email: info@eco-vector.com

A. I. Kaz’min

N.N. Priorov National Medical Research Center of Traumatology and Orthopaedics

Email: info@eco-vector.com

V. S. Pereverzev

N.N. Priorov National Medical Research Center of Traumatology and Orthopaedics

Email: info@eco-vector.com

S. V. Kolesov

N.N. Priorov National Medical Research Center of Traumatology and Orthopaedics

Email: info@eco-vector.com

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Copyright (c) 2018 Panteleev A.A., Gorbatyuk D.S., Sazhnev M.L., Kaz’min A.I., Pereverzev V.S., Kolesov S.V.

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