open access

Vol 48, No 1 (2014)
Original research articles
Submitted: 2012-11-04
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Changes in spino-pelvic alignment after surgical treatment of isthmic spondylolisthesis

Andrzej Maciejczak, Katarzyna Jabłońska, Danuta Bączek, Piotr Barnaś, Marcin Czternastek, Piotr Dudziak, Filip Georgiew, Barbara Jagiełło-Bajer, Bogdan Litwora, Piotr Maślanka, Robert Konior, Janusz Orzech
DOI: 10.1016/j.pjnns.2013.05.001
·
Neurol Neurochir Pol 2014;48(1):21-29.

open access

Vol 48, No 1 (2014)
Original research articles
Submitted: 2012-11-04

Abstract

Background and purpose

To analyze the changes in spino-pelvic parameters after surgical treatment of lumbar isthmic spondylolisthesis.

Materials and methods

Sixty patients recruited from a group of consecutive series of 128 cases with isthmic spondylolisthesis operated on between 2002 and 2012 in the Department of Neurosurgery, Tarnow, Poland. All patients were operated on by the same surgeon (the first author). Spino-pelvic parameters: PI, SS, PT, LSA, and LL were measured manually on standing lateral view radiograms. Patients were divided according to Spinal Deformity Study Group classification which we modified for means of analysis: (A) low-grade group: subgroups with balanced pelvis and unbalanced pelvis (instead of normal and high PI subgroups), (B) high-grade group: subgroups with balanced and unbalanced pelvis.

Results

Twenty-nine patients had unbalanced pelvis before the operation. In 10 of them (34%), the procedure resulted in full correction of pelvis position meaning that they achieved balanced pelvis after the surgery. There were 6 patients with low-grade slip who had balanced pelvis preoperatively but showed unbalanced pelvis after the surgery but this loss of balanced pelvis did not affect the clinical outcome which overall was good among them. Patients with unbalanced pelvis presented changes towards restoration of spino-sacro-pelvic anatomy postoperatively: PT decreased while SS increased, although these changes were not statistically significant.

Conclusion

Further studies are needed to confirm whether surgical correction of spino-pelvic parameters results in better clinical outcome in patients with isthmic spondylolisthesis.

Abstract

Background and purpose

To analyze the changes in spino-pelvic parameters after surgical treatment of lumbar isthmic spondylolisthesis.

Materials and methods

Sixty patients recruited from a group of consecutive series of 128 cases with isthmic spondylolisthesis operated on between 2002 and 2012 in the Department of Neurosurgery, Tarnow, Poland. All patients were operated on by the same surgeon (the first author). Spino-pelvic parameters: PI, SS, PT, LSA, and LL were measured manually on standing lateral view radiograms. Patients were divided according to Spinal Deformity Study Group classification which we modified for means of analysis: (A) low-grade group: subgroups with balanced pelvis and unbalanced pelvis (instead of normal and high PI subgroups), (B) high-grade group: subgroups with balanced and unbalanced pelvis.

Results

Twenty-nine patients had unbalanced pelvis before the operation. In 10 of them (34%), the procedure resulted in full correction of pelvis position meaning that they achieved balanced pelvis after the surgery. There were 6 patients with low-grade slip who had balanced pelvis preoperatively but showed unbalanced pelvis after the surgery but this loss of balanced pelvis did not affect the clinical outcome which overall was good among them. Patients with unbalanced pelvis presented changes towards restoration of spino-sacro-pelvic anatomy postoperatively: PT decreased while SS increased, although these changes were not statistically significant.

Conclusion

Further studies are needed to confirm whether surgical correction of spino-pelvic parameters results in better clinical outcome in patients with isthmic spondylolisthesis.

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Keywords

Isthmic spondylolisthesis, Spino-pelvic balance, Sacro-pelvic parameters

About this article
Title

Changes in spino-pelvic alignment after surgical treatment of isthmic spondylolisthesis

Journal

Neurologia i Neurochirurgia Polska

Issue

Vol 48, No 1 (2014)

Pages

21-29

DOI

10.1016/j.pjnns.2013.05.001

Bibliographic record

Neurol Neurochir Pol 2014;48(1):21-29.

Keywords

Isthmic spondylolisthesis
Spino-pelvic balance
Sacro-pelvic parameters

Authors

Andrzej Maciejczak
Katarzyna Jabłońska
Danuta Bączek
Piotr Barnaś
Marcin Czternastek
Piotr Dudziak
Filip Georgiew
Barbara Jagiełło-Bajer
Bogdan Litwora
Piotr Maślanka
Robert Konior
Janusz Orzech

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