Effect of a titanium cage as a stand-alone device on biomechanical stability in the lumbosacral spine of canine cadavers

Teunissen, M.; Veen, Albert J. van der; Smit, Theo H.; Tryfonidou, Marianna A.; Meij, Björn P.

doi:10.1016/j.tvjl.2016.12.007

Cited by 14 publications

(24 citation statements)

References 17 publications

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“…Therefore, from a biomechanical standpoint, the use of a stand-alone intervertebral cage seems to be a promising alternative. 10 In conclusion, this case study showed that there was trabecular bone ingrowth and bone filling of the cage and vertebral spinal fusion achieved by distraction-fixation with an intervertebral spacer (SynCage) and PSRF in a dog with severe DLSS and foraminal stenosis. Whether this is a treatment of first choice in dogs with DLSS needs to be investigated in larger prospective case-studies.…”

Section: Discussionmentioning

confidence: 70%

“…[13][14][15][16] Distraction can be further biomechanically supported by the insertion of an intervertebral spacer like a cage which may also promote vertebral fusion which is not achieved by PSRF alone. 9,10 Vertebral fusion through the cage has been demonstrated in dogs with caudal cervical spondylomyelopathy who were treated with an instrumented intervertebral cage, 17 but has not been reported previously for the lumbosacral segment.…”

Section: Introductionmentioning

confidence: 96%

“…2,3 In case of foraminal stenosis and nerve root compression, the surgery can be expanded to include foraminotomy or distraction with, for instance, pedicle screw and rod fixation (PSRF). [7][8][9][10] Pedicle screw and rod fixation has initially been used to treat pre-existent lumbosacral instability and to prevent further subluxation of the sacrum 3,11 the safe corridors for the pedicle screws have been described in detail. 3,11,12 When PSRF is combined with distraction, it also restores the intervertebral disc and foraminal width which is beneficial in case of severe DLSS and foraminal stenosis.…”

Section: Introductionmentioning

confidence: 99%

“…3,11,12 When PSRF is combined with distraction, it also restores the intervertebral disc and foraminal width which is beneficial in case of severe DLSS and foraminal stenosis. 9,10 Other techniques of fixation at the lumbosacral level include transarticular fixation of the facet joints using pins or transarticular positional screws. [13][14][15][16] Distraction can be further biomechanically supported by the insertion of an intervertebral spacer like a cage which may also promote vertebral fusion which is not achieved by PSRF alone.…”

Section: Introductionmentioning

confidence: 99%

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Lumbosacral Fusion Using Instrumented Cage Distraction–Fixation in a Dog with Degenerative Lumbosacral Stenosis

et al. 2020

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This study aimed to assess the long-term outcome and intervertebral fusion following surgical distraction and stabilization using an intervertebral cage and pedicle screw and rod fixation (PSRF) in a dog with severe degenerative lumbosacral stenosis (DLSS).Degenerative lumbosacral stenosis is a common disorder in large breed dogs and has a multifactorial origin. Surgical treatment by dorsal laminectomy and discectomy results in decompression of neural structures, but when distraction–fixation is applied, the ultimate goal is vertebral fusion. A 4-year-old male neutered Leonberger, presented with DLSS and pre-existent chronic discospondylitis, was treated by dorsal laminectomy, partial discectomy, curettage of the end plates, distraction with an intervertebral spacer (SynCage), and PSRF. At 26 months after surgery, the Helsinki pain score and neurological Griffith score were improved; however, the dog passed away shortly thereafter due to an unrelated disorder. The lumbosacral segment became available for computed tomography (CT), micro-CT and histopathology. On CT, bone volume through the largest hole of the cage was 91.0% and for compact bone 76.1%. Micro-CT and histopathology revealed vertebral fusion. Distraction–fixation using an intervertebral spacer and PSRF was well-accepted in this dog with severe DLSS, and the dog had a good clinical outcome with long-term follow-up. CT, micro-CT and histopathology showed evidence of vertebral fusion.

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Section: Discussionmentioning

confidence: 70%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Lumbosacral Fusion Using Instrumented Cage Distraction–Fixation in a Dog with Degenerative Lumbosacral Stenosis

et al. 2020

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“…Especially in the lumbar region, surgical approaches like anterior, posterior or transforaminal lumbar intervertebral fusion using pedicle and intervertebral cages have become the standard of care for spinal fusion in humans. 2 The pedicle screw and rod fixation system 3 and the pedicle screw and rod fixation system with a titanium cage 4 were successfully tested ex vivo and applied in vivo 5,6 in the lumbosacral area of large breed dogs using the smallest pedicle screws available for humans demonstrating that the principle of pedicle screw and rod fixation system may also be used in dogs.…”

Section: Introductionmentioning

confidence: 99%

Canine Vertebral Screw and Rod Fixation System: Design and Mechanical Testing

Lewchalermwong

Suwanna

Meij

2018

Vet Comp Orthop Traumatol

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Objectives To develop the canine vertebral screw and rod fixation system (CVSRF) and to compare the biomechanical properties between CVSRF and the screw and polymethylmethacrylate (Screw-PMMA) technique for internal fixation of the vertebral column in dogs. Methods The CVSRF consisted of vertebral screws with monoaxial side-loaded head, rods and specific inner screws connecting rod to the screw head. The CVSRF prototype was made from titanium alloy and manufactured by the rapid prototype machine. Vertebrectomy models were simulated by ultra-high-molecular-weight polyethylene blocks and tested with the CVSRF system (n = 8) and the Screw-PMMA technique (n = 8). The models were developed according to the American Society for Testing and Materials (ASTM F-1717–04). The biomechanical parameters were the compressive bending yield load, the compressive bending stiffness, the compressive ultimate load and the load displacement curve. Results The mean values of the compressive bending yield load, compressive bending stiffness and compressive ultimate load of the CVSRF were significantly higher than those of the Screw-PMMA technique (p < 0.01). The load displacement curve of the CVSRF showed higher rigidity and durability than that of the Screw-PMMA technique. Clinical Significance This mechanical study indicated that the CVSRF system can be used for canine vertebral stabilization and the biomechanical properties were better than those for the Screw-PMMA device.

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Lumbosacral Stabilization

Fitzpatrick¹

2018

Locking Plates in Veterinary Orthopedics

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Effect of a titanium cage as a stand-alone device on biomechanical stability in the lumbosacral spine of canine cadavers

Cited by 14 publications

References 17 publications

Lumbosacral Fusion Using Instrumented Cage Distraction–Fixation in a Dog with Degenerative Lumbosacral Stenosis

Lumbosacral Fusion Using Instrumented Cage Distraction–Fixation in a Dog with Degenerative Lumbosacral Stenosis

Canine Vertebral Screw and Rod Fixation System: Design and Mechanical Testing

Lumbosacral Stabilization

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