Menu
Menu
19 Harley St, London, W1G 9QJ, UK
We are London's Top Spine Clinic

Biomechanical Evaluation of a Novel Autogenous Bone Interbody Fusion Cage for Posterior Lumbar Interbody Fusion in a Cadaveric Model.

Related Articles

Biomechanical Evaluation of a Novel Autogenous Bone Interbody Fusion Cage for Posterior Lumbar Interbody Fusion in a Cadaveric Model.

Spine (Phila Pa 1976). 2014 Feb 27;

Authors: Wang L, Huang H, Zhang Z, Zhang Z, Zhang L, Li J

Abstract
Study Design. A human cadaveric biomechanical study of a novel, prefabricated autogenous bone interbody fusion (ABIF) cage.Objective. To evaluate the biomechanical properties of the ABIF cage in a single-level construct with and without transpedicular screw and rod fixation.Summary of Background Data. In current practice, posterior lumbar interbody fusion (PLIF) is generally carried out using synthetic interbody spacers or corticocancellous iliac crest bone graft (ICBG) in combination with posterior instrumentation. However, questions remain concerning the use of synthetic intervertebral implants as well as the morbidity ICBG harvesting. Therefore, ABIF cage has been developed to obviate some of the challenges in conventional PLIF instrumentation and to facilitate the fusion process.Methods. Eighteen adult cadaveric lumbosacral (L3-S1) specimens were tested. Test conditions included single lumbosacral segments across (1) intact, (2) decompressed, (3) intervertebral cage alone, and (4) intervertebral cage with bilateral transpedicular fixation. Range of motion (ROM), neutral zone (NZ) and axial failure load were tested for each condition.Resluts. The ICBG, PEEK cage or ABIF cage alone exhibited a significantly lower (p<0.05) ROM and NZ compared to the decompressed spine. In comparison with the intact spine, all three test conditions without supplemental fixation was able to decrease ROM and NZ to near intact levels. When stabilized with pedicle screws, the ROM was significantly less and the NZ significantly lower (p<0.05) for each group both compared to the intact spine. In axial compression testing, the failure load of PEEK cage was the highest, with no significant difference between the ICBG and the ABIF cage.Conclusion. These data suggest the novel ABIF cage can bear the physiologic intervertebral peak load, similar to ICBG. When combined with pedicle screw and rod fixation, it exhibits similar biomechanical properties as the PEEK cage plus posterior instrumentation. Based on the biomechanical properties of ABIF cage, the prospect of these cages in clinical practice is expected.

PMID: 24583726 [PubMed – as supplied by publisher]

Share to care...

Share on facebook
Facebook
Share on twitter
Twitter
Share on pinterest
Pinterest
Share on google
Google+
Share on linkedin
LinkedIn
Share on skype
Skype

What we do...

The Harley Street Hospital

Testimonials

What is London spine unit and How it Works

The London Spine Unit was established in 2005 and has successfully treated over 5000 patients. All conditions are treated.

We treat all spinal disorders

The London Spine Unit specialises in Minimally Invasive Treatments allowing rapid recovery and return to normal function

Trusted by patients worldwide

The London Spine Unit provides the highest quality care to all patients and has VIP services for those seeking exceptional services

What our patients say about us ......