Experimental comparison of constructions «spondylosyndesis-270» and «spondylosyndesis-360»


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Abstract

Objective: The purpose of our study was to compare the biomechanical properties of the «spondylosyndesis-270» and «spondylosyndesis-360» fusion methods and make a conclusion about the possibility of the clinical use of «spondylosyndesis-270».

Mаteriаls аnd Methods. Experimentаl study included three-series tests with humаn spine cаdаver specimens. The stаbility of spinаl segments with trаnspediculаr instrumentаtion wаs studied during mechаnicаl loаd similar «in vivo» conditions. We used a torsion and tensile load on cadaver discs and investigated the stability of screw fixation in both methods.

Results: the monolateral fixation with the banana-shaped cage provides a sufficiently level of stability

under compression and torsion load. However, the outcomes of the monolateral method of fusion was better. We recommend a using of spondylodesis-270 method for surgical treatment in case of degenerative lumbar spine disease.

About the authors

М. D. Abakirov

ФГУЗ ЦКБ отделение травматологии и ортопедии (вертебрологии)

Author for correspondence.
Email: renicnm@mail.ru

Д.м.н. проф., врач травматолог-ортопед

Russian Federation, г. Москва,Литовский б-р,1 А

R. М. Nourmukhametov

ФГУЗ ЦКБ отделение травматологии и ортопедии (вертебрологии)

Email: renicnm@mail.ru

врач травматолог-ортопед

Russian Federation, г. Москва,Литовский б-р,1 А

Ya. A. Borisov

кафедра травматологии и ортопедии РУДН

Email: renicnm@mail.ru

аспирант

Russian Federation, г. Москва, ул. Лобачевского,42

References

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Supplementary files

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1. JATS XML
2. Fig. 1. Preparation of samples with monolateral transpedicular fixation

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3. Fig. 2. Preparation of specimens with bilateral transpedicular fixation

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4. Fig. 3. The stage of curettage of the intervertebral disc cavity with the installation of cage according to the method of TLIF

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5. Fig. 4. Compress Sample # 2

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6. Fig. 5. Compress Sample # 3

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7. Fig. 6. Model of axial rotation

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8. Fig. 7. Installation to simulate a compression fracture of the vertebral body

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9. Fig. eight . Mechanical Testing

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10. Fig. 9. The result of axial rotation

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Copyright (c) 2018 Abakirov М.D., Nourmukhametov R.М., Borisov Y.A.

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