Using three-dimensional rapid prototyping in the design and development of orthopaedic screws in standardised pull-out tests

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
Laura Jane LeslieSubodh C Deshmukh

Abstract

The majority of orthopaedic screws are designed, tested and manufactured by existing orthopaedics companies and are predominantly developed with healthy bone in mind. The timescales and costs involved in the development of a new screw design, for example, for osteoporotic bone, are high. In this study, standard wood screws were used to analyse the concept of using three-dimensional printing, or rapid prototyping, as a viable stage of development in the design of a new bone screw. Six wood screws were reverse engineered and printed in polymeric material using stereolithography. Three of the designs were also printed in Ti6Al4V using direct metal laser sintering; however, these were not of sufficient quality to test further. Both the original metal screws (metal) and polymeric rapid prototyping screws were then tested using standard pull-out tests from low-density polyurethane blocks (Sawbones). Results showed the highest pull-out strengths for screws with the longest thread length and the smallest inner diameter. Of the six screw designs tested, five showed no more than a 17% variance between the metal and rapid prototyping results. A similar pattern of results was shown between the screw designs for both the metal and rapid pro...Continue Reading

References

Jan 1, 1976·Journal of Biomechanics·S M Perren
Sep 15, 2004·The Spine Journal : Official Journal of the North American Spine Society·Serkan InceogluRobert F McLain
Dec 11, 2007·Osteoporosis International : a Journal Established As Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA·J GoldhahnB Hanson
Nov 7, 2009·Journal of Artificial Organs : the Official Journal of the Japanese Society for Artificial Organs·Hideto SaijoTsuyoshi Takato
Dec 16, 2011·Journal of Biomechanical Engineering·Zhijun WuXianjie Yang
Aug 4, 2012·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Antonio GraccoGiuseppe Siciliani

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