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Updated: Feb 8, 2026
05:41
Rapid Mix Preparation of Bioinspired Nanoscale Hydroxyapatite for Biomedical Applications
Published on: February 23, 2017
20.0K
Osteosynthesis Using the Uncalcined and Unsintered Hydroxyapatite / Poly-L-Lactic Acid System
Hiroyuki Nakano1, Kazuya Inoue1, Tomoki Sumida1
1Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan.
Annals of Maxillofacial Surgery
|July 3, 2018
Summary
Poly-L-lactic acid mini-plates offer rapid development but face screw breakage issues. This report introduces new stainless steel temporary fixing screws with a tapping function to address this problem.
Area of Science:
- Biomaterials Science
- Orthopedic Surgery
Background:
- Poly-L-lactic acid (PLLA) mini-plate systems have advanced rapidly for bone fixation.
- A significant challenge with current PLLA systems is screw breakage, compromising device integrity and patient outcomes.
Purpose of the Study:
- To develop and present a novel temporary fixing screw design to overcome the limitations of existing PLLA mini-plate systems.
- To introduce stainless steel temporary fixing screws with enhanced features for improved performance.
Main Methods:
- Development of temporary fixing screws from stainless steel.
- Incorporation of a hexagonal head for secure handling and a tapping function within the thread part for efficient insertion.
Main Results:
- The developed screws are constructed from stainless steel, offering greater strength compared to PLLA.
- The hexagonal head design facilitates reliable manipulation during surgical procedures.
- The integrated tapping function simplifies screw placement and improves fixation stability.
Conclusions:
- The newly designed stainless steel temporary fixing screws address the critical issue of screw breakage in PLLA mini-plate systems.
- This innovation offers a promising solution for enhanced reliability and performance in orthopedic fixation devices.
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