title: Theories of wear and loosening in hip prostheses. Wear-induced loosening vs loosening-induced wear--a review.
abstract: The observation of perioprosthetic granulomas containing wear debris around apparently well-fixed as well as around loose-fitting prosthetic components has led to the development of the hypothesis of wear-induced loosening. However, the hypothesis of wear-induced loosening can neither explain the rapid early prosthetic migration detected by roentgen stereophotogrammetry nor the epidemiology of clinical failure without supplementary ad hoc-assumptions. By contrast, apart from explaining the rapid early prosthetic migration detected by roentgen stereophotogrammetry, the theory of early loosening can explain the development of wear granulomas as well as to a great extent the epidemiology of clinical failure.
authors.affiliation: Department of Orthopedics, Uppsala University Hospital, Sweden.
authors.forename: B
authors.initials: B
authors.lastname: Mjöberg
mesh_terms: D001672:Biocompatible Materials; D001843:Bone Cements / Q000009:adverse effects; D006622:Hip Prosthesis; D006801:Humans; D011474:Prosthesis Design; D011475:Prosthesis Failure
chemical_list: D001672:Biocompatible Materials; D001843:Bone Cements