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The Development of Load‐bearing Bone Substitute Materials
Author(s) -
Ward Ian M.,
Bonfield William,
Ladizesky N. Hugo
Publication year - 1997
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/(sici)1097-0126(199708)43:4<333::aid-pi753>3.0.co;2-n
Subject(s) - materials science , extrusion , composite material , load bearing , ductility (earth science) , compaction , polyethylene , fabrication , creep , medicine , alternative medicine , pathology
Three molecular orientation technologies—hydrostatic extrusion, fibre drawing and fibre compaction—have been used to produce a range of hydroxyapatite/polyethylene (HA/PE) bone substitute composites with stiffnesses in the range of 10GPa to 20GPa and strengths of up to 110MPa, matching the mechanical properties of cortical bone. In addition, the materials have excellent ductility together with favourable bioactivity imparted by the incorporation of hydroxyapatite. These new results raise the possibility of extending the present low‐load medical applications of HA/PE composites to the fabrication of skeletal implants subjected to large physiological loads, such as total hip joint replacement. © 1997 SCI