title: Results of histological grading on 100 cases of hip prosthesis failure.
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.
authors.affiliation: Centre for Biocompatibility Research on Implant Materials, Instituto Ortopedico Rizzoli, Bologna, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Pizzoferrato
authors.forename: G
authors.initials: G
authors.lastname: Ciapetti
authors.forename: L
authors.initials: L
authors.lastname: Savarino
authors.forename: S
authors.initials: S
authors.lastname: Stea
authors.forename: C
authors.initials: C
authors.lastname: Tarabusi
mesh_terms: D001672:Biocompatible Materials; D004868:Equipment Failure; D006621:Hip Joint / Q000473:pathology; D006622:Hip Prosthesis; D006801:Humans; D007249:Inflammation; D011095:Polyethylenes; D011475:Prosthesis Failure
chemical_list: D001672:Biocompatible Materials; D011095:Polyethylenes