Shaolong Tang, Dan Pan, Siyuan Chen, Hengyuan Li, Zhaoming Ye
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引用次数: 0
Abstract
Objective: This study aims to evaluate the biomechanical and clinical performance of a new anti-backout TLIF device compared to a traditional device.
Methods: This study involved a rat model, with biomechanical tests including static axial compression, static and dynamic settlement, and blade-cutting torque tests. Pain behavior in rats (n = 6) and material compatibility through cell toxicity and hemolysis tests were also assessed.
Results: The modified anti-backout interbody fusion cage demonstrated a yield load of 7747.36 ± 274.96 N in static axial compression testing, significantly higher than the traditional TLIF cage's 6933.36 ± 65.00 N (p < 0.05), indicating superior load resistance. In static settlement testing, the modified cage's yield load was 1020.87 ± 13.22 N, also notably higher than the traditional cage's 939.06 ± 8.03 N (p < 0.05). In static pullout testing, the maximum pullout force of the modified cage with the blade extended reached 534.02 ± 21.24 N, exceeding the 476.97 ± 24.45 N without the blade (p < 0.05), showing advantages in maximum pullout force and stiffness. Biocompatibility tests revealed lower cytotoxicity and a hemolysis rate of less than 5% for the modified cage material, significantly better than the traditional material's 8% (p < 0.05).
Conclusion: The new anti-backout TLIF device provides enhanced stability, reduced pain, and improved material compatibility, supporting its potential for clinical application.
期刊介绍:
Journal of Investigative Surgery publishes peer-reviewed scientific articles for the advancement of surgery, to the ultimate benefit of patient care and rehabilitation. It is the only journal that encompasses the individual and collaborative efforts of scientists in human and veterinary medicine, dentistry, basic and applied sciences, engineering, and law and ethics. The journal is dedicated to the publication of outstanding articles of interest to the surgical research community.