Tissue reactions to titanium endoprostheses. Autopsy studies in four cases

Four cementless prosthetic hip implants of Ti-6Al-4V-alloy with and without longitudinal grooves and Al2O2 ceramic ball heads, with implant periods of 3, 4, 5, and 10 months, were sectioned and examined histologically in undecalcified thin ground sections. Especially on the medial and lateral sides...

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Bibliographic Details
Published inThe Journal of arthroplasty Vol. 1; no. 3; pp. 183 - 195
Main Authors Lintner, F, Zweymüller, K, Brand, G
Format Journal Article
LanguageEnglish
Published United States 1986
Subjects
Aged
Biocompatible Materials
Female
Femur - pathology
Hip Prosthesis
Humans
Middle Aged
Osteogenesis
Prosthesis Design
Time Factors
Titanium
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Summary:Four cementless prosthetic hip implants of Ti-6Al-4V-alloy with and without longitudinal grooves and Al2O2 ceramic ball heads, with implant periods of 3, 4, 5, and 10 months, were sectioned and examined histologically in undecalcified thin ground sections. Especially on the medial and lateral sides of the prostheses, there was direct bone-to-metal contact without interposed connective tissue, spreading to the dorsal and ventral areas of the prosthesis shaft, which was considered osseointegration. This is based mainly on the technique of implantation with primary stability in the cortical bone by press-fit and on the bioinertness of the titanium alloy. Ungrooved prosthesis areas seem to favor bone growth at the shaft. The secondary bone ring, occurring on the dorsal and ventral areas of the prosthesis, with evidence of further bone remodeling with the passage of time, indicates that osseointegration is a dynamic process that continues to improve prosthetic stability.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0883-5403
DOI:10.1016/S0883-5403(86)80029-8