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Results of histological grading on 100 cases of hip prosthesis failure
A Pizzoferrato1, G Ciapetti, L Savarino
1Centre for Biocompatibility Research on Implant Materials, Instituto Ortopedico Rizzoli, Bologna, Italy.
Biomaterials
|July 1, 1988
Abstract:
One hundred cases of hip prosthesis failure were classified on the basis of the different types of tissue reaction occurring around alloplastic material. The results revealed infectious phlogosis in 32% of the cases, phlogosis due to wear in 42%, phlogosis due to allergy in 1% and mixed phlogosis in 25%. The distribution of the type and degree of intensity of the phlogosis, in relation to the duration of the implant, is also highlighted. This new grading technique yields reproducible results.