๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

The effect of movement on the bonding of porous metal to bone

โœ Scribed by Cameron, Hugh U. ;Pilliar, Robert M. ;Macnab, Ian

Publisher
John Wiley and Sons
Year
1973
Tongue
English
Weight
506 KB
Volume
7
Category
Article
ISSN
0021-9304

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โœฆ Synopsis

Abstract

An attempt has been made to define the conditions with respect to movement under which porous metal will bond to bone. It has already been shown that bone will grow into the pore of porous Vitallium under static conditions and under conditions of micromovement, as when stressed by the pull of a tendon. An experiment is described in which porous Vitallium staples were inserted across an unstable osteotomy site. No bonding occurred indicating that bone ingrowth will not occur in the presence of movement of this order of magnitude.

The implication of this observation in the design of porous coated endoprostheses is that some form of initial mechanical fixation is required, and this fixation must remain rigid for four months to allow bone ingrowth.

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