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Precision Measurements and Parametric Models of Vertebral Endplates
Published on: September 17, 2019
6.8K
Morphometry evaluations of cervical osseous endplates based on three dimensional reconstructions.
Hang Feng1, Haoxi Li1, Zhaoyu Ba1
1Department of Spinal Surgery, Shanghai East Hospital, Tongji University School of Medicine, 150 JiMo Road, Shanghai, 200120, China.
International Orthopaedics
|August 10, 2018
Summary
This study quantifies cervical endplate geometry, revealing significant differences between superior and inferior endplates. These findings provide crucial morphometric data for designing improved cervical spine devices.
Area of Science:
- Biomedical Engineering
- Anatomy
- Orthopedics
Background:
- Accurate cervical endplate data is vital for designing effective cervical devices.
- Existing literature on vertebral disc geometry is limited and often unsuitable for device design.
Purpose of the Study:
- To obtain quantitative parameters of cervical endplates.
- To provide essential morphometric references for the design of cervical devices.
Main Methods:
- Utilized 19 human cervical spine cadaveric specimens.
- Employed reverse engineering for 3D reconstruction of endplate surfaces.
- Developed a measurement protocol to analyze sagittal and frontal surface curves and concavity.
Main Results:
- Cervical endplate surfaces showed a trend of gradual transverse elongation.
- Inferior endplates exhibited significantly greater concavity depths (1.88–2.13 mm) than superior endplates (0.62–0.84 mm).
- The location of maximum concavity differed between superior (post-median) and inferior (central) endplates.
Conclusions:
- The quantitative data offers guidelines for designing cervical prostheses while preserving bone stock.
- Parametric equations for cervical endplate surfaces can facilitate future research and device development.
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