Comparison of rigid and semi-rigid instrumentation under acute load on vertebrae treated with posterior lumbar interbody fusion/transforaminal lumbar interbody fusion procedures: An experimental study.

  • Yazar/lar ÖNEN, Mehmet Reşid
    BAŞGÜL, Cemile
    YILMAZ, İlhan
    ÖZKAYA, Mustafa
    DEMİR, Teyfik
    NADERİ, Sait
  • Yayın Türü Makale
  • Yayın Tarihi 2018
  • DOI Numarası 10.1177/0954411918755416
  • Tek Biçim Adres http://hdl.handle.net/20.500.12498/3312

Rigid and semi-rigid fixations are investigated several times in order to compare their biomechanical stability. Interbody fusion techniques are also preferable for maintaining the sagittal balance by protecting the disk height. In this study, the biomechanical comparison of semi-rigid and rigid fixations with posterior lumbar interbody fusion or transforaminal lumbar interbody fusion procedures is conducted under trauma. There were four different test groups to analyze the effect of acute load on treated ovine vertebrae. First and second groups were fixed with polyetheretherketone rods and transforaminal lumbar interbody fusion and posterior lumbar interbody fusion cages, respectively. Third and fourth groups were fixed with titanium rods and posterior lumbar interbody fusion and transforaminal lumbar interbody fusion cages, respectively. The drop tests were conducted with 7 kg weight. There were six samples in each group so the drop test repeated 24 times in total. The test samples were photographed and X-rayed (laterally and anteroposteriorly) before and after drop test. Two fractures were observed on group 1. Conversely, there were no fractures observed for group 2. There were no anterior element fractures for both groups 1 and 2. However, one fracture seen on group 3 was anterior element fracture, whereas the other three were posterior element fractures. All three fractures were anterior element fractures for group 4. Treated vertebrae with polyetheretherketone rods and posterior lumbar interbody fusion cages showed the best durability to the drop tests among the groups. Semi-rigid fixation gave better results than rigid fixation according to failed segments. Posterior lumbar interbody fusion cages seem to be better option for semi-rigid fixation, however mentioned surgical disadvantages must be considered.

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Eser Adı
(dc.title)
Comparison of rigid and semi-rigid instrumentation under acute load on vertebrae treated with posterior lumbar interbody fusion/transforaminal lumbar interbody fusion procedures: An experimental study.
Yayın Türü
(dc.type)
Makale
Yazar/lar
(dc.contributor.author)
ÖNEN, Mehmet Reşid
Yazar/lar
(dc.contributor.author)
BAŞGÜL, Cemile
Yazar/lar
(dc.contributor.author)
YILMAZ, İlhan
Yazar/lar
(dc.contributor.author)
ÖZKAYA, Mustafa
Yazar/lar
(dc.contributor.author)
DEMİR, Teyfik
Yazar/lar
(dc.contributor.author)
NADERİ, Sait
DOI Numarası
(dc.identifier.doi)
10.1177/0954411918755416
Atıf Dizini
(dc.source.database)
Diğer
Atıf Dizini
(dc.source.database)
Pubmed
Yayın Tarihi
(dc.date.issued)
2018
Kayıt Giriş Tarihi
(dc.date.accessioned)
2020-08-07T13:24:20Z
Açık Erişim tarihi
(dc.date.available)
2020-08-07T13:24:20Z
Kaynak
(dc.source)
Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine
Özet
(dc.description.abstract)
Rigid and semi-rigid fixations are investigated several times in order to compare their biomechanical stability. Interbody fusion techniques are also preferable for maintaining the sagittal balance by protecting the disk height. In this study, the biomechanical comparison of semi-rigid and rigid fixations with posterior lumbar interbody fusion or transforaminal lumbar interbody fusion procedures is conducted under trauma. There were four different test groups to analyze the effect of acute load on treated ovine vertebrae. First and second groups were fixed with polyetheretherketone rods and transforaminal lumbar interbody fusion and posterior lumbar interbody fusion cages, respectively. Third and fourth groups were fixed with titanium rods and posterior lumbar interbody fusion and transforaminal lumbar interbody fusion cages, respectively. The drop tests were conducted with 7 kg weight. There were six samples in each group so the drop test repeated 24 times in total. The test samples were photographed and X-rayed (laterally and anteroposteriorly) before and after drop test. Two fractures were observed on group 1. Conversely, there were no fractures observed for group 2. There were no anterior element fractures for both groups 1 and 2. However, one fracture seen on group 3 was anterior element fracture, whereas the other three were posterior element fractures. All three fractures were anterior element fractures for group 4. Treated vertebrae with polyetheretherketone rods and posterior lumbar interbody fusion cages showed the best durability to the drop tests among the groups. Semi-rigid fixation gave better results than rigid fixation according to failed segments. Posterior lumbar interbody fusion cages seem to be better option for semi-rigid fixation, however mentioned surgical disadvantages must be considered.
Yayın Dili
(dc.language.iso)
eng
Tek Biçim Adres
(dc.identifier.uri)
http://hdl.handle.net/20.500.12498/3312
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