Tantalum implants for posterior lumbar interbody fusion: A safe method at medium-term follow-up? - 10/04/20
, Pierre Kriegel, Patrick Chatellier, Yann Breton, Mickael Ropars, Denis Huten
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Abstract |
Introduction |
Intervertebral implants increase stability and improve results in lumbar interbody fusion (LIF). The aim of the present study was to assess clinical and radiological results of posterior lumbar interbody fusion (PLIF) using a tantalum intervertebral implant without associated interbody bone graft.
Materiel and methods |
A single-center retrospective study included 52 cases of single-level PLIF, using 2 tantalum intervertebral cages, without interbody bone graft: 42 for degenerative disc disease, 10 for isthmic spondylolisthesis. Minimum follow-up was 2 years. Clinical assessment used a visual analog (pain) scale (VAS), the Oswestry Disability Index (ODI) and the Roland Morris (RM) scale. Tantalum osseointegration and intersegment mobility were assessed on static and dynamic X-ray.
Results |
Forty-nine patients were included, with a mean 55months’ follow-up (range, 25–74months). VAS, ODI and RM scores showed significant improvement at last-follow-up, at 4, 30 and 28 points respectively. There was no mechanical failure on static X-ray; all patients had less than 5° mobility on dynamic X-ray at last follow-up.
Discussion |
PLIF with tantalum intervertebral implant without interbody bone graft provided satisfactory clinical and radiological results at medium-term follow-up. The present findings showed reliable primary stability and osseointegration of the tantalum implant.
Level of evidence |
IV.
Il testo completo di questo articolo è disponibile in PDF.Keywords : Lumbar Fusion, Posterior lumbar interbody fusion (PLIF), Tantalum, Trabecular metal (TM)
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Vol 106 - N° 2
P. 269-274 - Aprile 2020 Ritorno al numero
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