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Journal of Bone and Joint Surgery, 1971;53:963-977.
© 1971 by The Journal of Bone and Joint Surgery, Inc

Surgical Implants

THE ROLE OF SURFACE POROSITY IN FIXATION TO BONE AND ACRYLIC

R. PETER WELSH M.B., CH.B.1, ROBERT M. PILLIAR PH.D.2, and IAN MACNAB F.R.C.S., F.R.C.S.(C)1

1 Wellesley Hospital, Toronto, Ontario, Canada
2 Department of Metallurgy, Ontario Research Foundation, Sheridan Park, Ontario, Canada

An attempt has been made to measure the bonding capability of bone with implanted materials which have open pores on their surfaces. The results of experimental work in dogs with ceramics, Vitallium with satin surface, and a new type of porous surface finish for Vitallium implants is presented. Firm bonding of bones with the porous-surfaced metal was established by the active infiltration of the porous structure by new bone.

Bonding of the metal with methylmethacrylate cement was also greatly enhanced by this porous surface. Some suggestions have been made as to the possible surgical use of such material.


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