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Biomechanical study of space frame structure based on bone cement screw

  • Authors:
    • Jintao Xiu
    • Tao Bu
    • Yabo Yan
    • Zixiang Wu
    • Zhanhai Yin
    • Wei Lei
  • View Affiliations / Copyright

    Affiliations: Department of Orthopaedics, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi 710032, P.R. China, Medical Department, Lintong Rehabilitation Center, Xi'an, Shaanxi 710600, P.R. China, Department of Orthopaedics, The First Affiliated Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
    Copyright: © Xiu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 3650-3656
    |
    Published online on: April 9, 2020
       https://doi.org/10.3892/etm.2020.8659
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Abstract

Stability of space frame structures with bone cement screw reinforcement by biomechanical testing was analyzed. Seven complete human spine specimens with osteoporosis were selected. Three specimens were separated into 18 vertebral bodies. Nine vertebral bodies were randomly selected and bone cement screws were implanted on both sides. Bone cement was used to form a bridge at the front end of the two screws (single vertebral group A). The other nine vertebral bodies were implanted with cement screws on both sides, but the front ends of the two screws were not bridged (single vertebral group B). The remaining spine specimens were used for biomechanical testing of the overall stability of the three‑dimensional frame. The four specimens were osteotomized, and then two specimens were randomly selected. Bone cement screws were implanted on both sides of the vertebral body, and a bone cement bridge was formed at the front end of the two screws to establish a three‑dimensional frame structure (multi‑vertebral group A). The other two spine specimens were implanted with cement screws on both sides of the vertebral body, but the front ends of the two screws were not bridged (multi‑vertebral group B). A statistical difference was found between the extractive force of bridged and non‑bridged specimens. Group B showed some loosening of screws after the test. The stability of the triangle structure screw, which was formed after the bridge was established at the front end of the single‑vertebral bone cement screw, was significantly enhanced. Moreover, the stability was significantly improved after the three‑dimensional frame structure was established in the multi‑vertebral body group, providing a new method for clinical improvement of the stability and reliability of internal fixation in patients with severe osteoporosis and spinal disease.
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Copy and paste a formatted citation
Spandidos Publications style
Xiu J, Bu T, Yan Y, Wu Z, Yin Z and Lei W: Biomechanical study of space frame structure based on bone cement screw. Exp Ther Med 19: 3650-3656, 2020.
APA
Xiu, J., Bu, T., Yan, Y., Wu, Z., Yin, Z., & Lei, W. (2020). Biomechanical study of space frame structure based on bone cement screw. Experimental and Therapeutic Medicine, 19, 3650-3656. https://doi.org/10.3892/etm.2020.8659
MLA
Xiu, J., Bu, T., Yan, Y., Wu, Z., Yin, Z., Lei, W."Biomechanical study of space frame structure based on bone cement screw". Experimental and Therapeutic Medicine 19.6 (2020): 3650-3656.
Chicago
Xiu, J., Bu, T., Yan, Y., Wu, Z., Yin, Z., Lei, W."Biomechanical study of space frame structure based on bone cement screw". Experimental and Therapeutic Medicine 19, no. 6 (2020): 3650-3656. https://doi.org/10.3892/etm.2020.8659
Copy and paste a formatted citation
x
Spandidos Publications style
Xiu J, Bu T, Yan Y, Wu Z, Yin Z and Lei W: Biomechanical study of space frame structure based on bone cement screw. Exp Ther Med 19: 3650-3656, 2020.
APA
Xiu, J., Bu, T., Yan, Y., Wu, Z., Yin, Z., & Lei, W. (2020). Biomechanical study of space frame structure based on bone cement screw. Experimental and Therapeutic Medicine, 19, 3650-3656. https://doi.org/10.3892/etm.2020.8659
MLA
Xiu, J., Bu, T., Yan, Y., Wu, Z., Yin, Z., Lei, W."Biomechanical study of space frame structure based on bone cement screw". Experimental and Therapeutic Medicine 19.6 (2020): 3650-3656.
Chicago
Xiu, J., Bu, T., Yan, Y., Wu, Z., Yin, Z., Lei, W."Biomechanical study of space frame structure based on bone cement screw". Experimental and Therapeutic Medicine 19, no. 6 (2020): 3650-3656. https://doi.org/10.3892/etm.2020.8659
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