Degenerative facet joint changes in lumbar percutaneous pedicle screw fixation without fusion

Abstract Background Aim of the study was to evaluate degenerative lumbar facet-joints changes after percutaneous pedicle screw fixation (PPSF) in the treatment of lumbar fractures. Materials and methods Thirty patients underwent short PPSF without fusion. CT-scan was performed in the pre- and post-o...

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Bibliographic Details
Published in:Orthopaedics & traumatology, surgery & research surgery & research, 2015-05, Vol.101 (3), p.375-379
Main Authors: Proietti, L, Scaramuzzo, L, Schirò, G.R, Sessa, S, Tamburrelli, F.C, Cerulli, G
Format: Article
Language:English
Subjects:
Adult
Aged
Degenerative change
Female
Follow-Up Studies
Fracture Fixation, Internal
Humans
Hypertrophy
Lumbar spine
Lumbar Vertebrae - injuries
Lumbar Vertebrae - surgery
Male
Middle Aged
Orthopedics
Osteophyte - diagnostic imaging
Pedicle Screws
Percutaneous fixation
Retrospective Studies
Spinal Fractures - surgery
Surgery
Tomography, X-Ray Computed
Young Adult
Zygapophyseal Joint - diagnostic imaging
Zygapophyseal Joint - pathology
Zygapophyseal joints
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Summary:Abstract Background Aim of the study was to evaluate degenerative lumbar facet-joints changes after percutaneous pedicle screw fixation (PPSF) in the treatment of lumbar fractures. Materials and methods Thirty patients underwent short PPSF without fusion. CT-scan was performed in the pre- and post-operative time at four, eight and 12 months. The six zygapophyseal joints adjacent the fracture's level were evaluated. Results At four months patients showed no differences between pre- and post-operative joint radiographic aspect. At eight and 12 months, CT-scan demonstrated a progressive degeneration only in the middle joints respectively in 21.42% and in 76.92% of the cases. All 10 disrupted facet joints showed progressive degenerative changes at eight and 12 months. Conclusion Lumbar percutaneous fixation without fusion induces little degenerations essentially collocated in the middle joints close to fracture level at eight and 12 months. In the proximal and distal joints adjacent the screws degenerative changes can be seen only when associated to pedicle-screw encroachment. Level of evidence Level IV retrospective study.
ISSN:1877-0568
1877-0568
DOI:10.1016/j.otsr.2015.01.013