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Interpositional Materials for Feline Stifle Implant Arthroplasty
Author(s) -
POWERS DENNIS L,
MAZANTI LAURA E.
Publication year - 1986
Publication title -
veterinary surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 79
eISSN - 1532-950X
pISSN - 0161-3499
DOI - 10.1111/j.1532-950x.1986.tb00232.x
Subject(s) - medicine , prosthesis , silicone rubber , implant , silicone , cartilage , arthroplasty , surgery , dentistry , biomedical engineering , anatomy , materials science , composite material
Xenogenic cartilage grafts and Dacron were tested as interpositional materials between osteotomy surfaces and a silicone rubber prosthesis to protect it from wear, fragmentation, and eventual failure. The histologic appearance of healing adjacent to interpositional materials was compared to that of unprotected silicone prostheses. Prosthetic wear and lipid uptake were quantitated using extraction and gravimetric techniques. Both interpositional materials were found to reduce prosthetic wear and the accompanying tissue reaction to the silicone wear products compared to unprotected prostheses. Both interpositional materials were equally effective in providing a thick interface. Interpositional cartilage was being replaced by fibrous tissue, whereas macrophages and giant cells were unable to degrade the Dacron, and therefore persisted in the pores of the material. However, the advantages of using Dacron outweighed those of fresh xenogenic cartilage.