Abstract
BackgroundAnterior cervical plate had developed continuously, and this study aimed to assess the biomechanics of a novel self-locking plate system for anterior cervical fixation designed by ourselves.MethodsTwelve anterior cervical plates (i.e., six novel plates and six DePuy plates) were subjected to a pull-out test and a fatigue test. In addition, 12 C1-T1 cervical spine specimens underwent anterior cervical corpectomy and C5 fusion using six novel plates and six DePuy plates. Pre- and postoperative range of motion, load–displacement, axial stiffness, torque, and twisting stiffness were compared.ResultsNo differences in maximum pull-out force, relative displacement, or energy absorption were observed between the DePuy plates and the novel plates (P >0.05). The novel plate system could bear an average of 5.6 × 105 times of loading, while the DePuy plate could bear 5.4 × 105 times of loading. The fatigue strengths of the new plate system and the DePuy plate were 490.75 and 485.86 MPa, respectively. No differences in fatigue life or strength were observed between the two types of plates. Cervical spine stability increased significantly after internal fixation. No differences in range of motion, load–displacement, axial stiffness, torque, or twisting stiffness were observed between the novel self-locking plate and the DePuy plate (P >0.05).ConclusionsCompared to the DePuy plate, the novel anterior cervical self-locking plate system described here has good strength and fastening ability, allowing it to provide sufficient biomechanical stability. Further clinical assessment of this system is needed.
Highlights
Cervical damage caused by trauma, deformities, degeneration, or tumor treatment is frequently reconstructed using anterior cervical plate fixation, which enhances postoperative cervical spine stability, reduces the incidence of pseudoarthrosis, and reduces cervical kyphosis [1,2]
Postoperative cervical screw collapse, pull-out, and breakage frequently occur due to osteoporosis [4,5]
The fresh adult cadaveric cervical spine specimens were obtained anonymously, and all of them were donated to Anatomy Laboratory, Shanghai Jiao Tong University School of Medicine
Summary
Cervical damage caused by trauma, deformities, degeneration, or tumor treatment is frequently reconstructed using anterior cervical plate fixation, which enhances postoperative cervical spine stability, reduces the incidence of pseudoarthrosis, and reduces cervical kyphosis [1,2]. Since the description of the anterior approach for cervical discectomy and fusion by Smith and Robinson [3] in 1958, anterior cervical procedures have become quite common with generally good clinical results. Postoperative cervical screw collapse, pull-out, and breakage frequently occur due to osteoporosis [4,5]. We designed and developed a novel anterior cervical self-. Anterior cervical plate had developed continuously, and this study aimed to assess the biomechanics of a novel self-locking plate system for anterior cervical fixation designed by ourselves
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
