title: Adverse tissue reactions in modular exchangeable neck implants: a report of two cases.
abstract: Dual-modular femoral stems with exchangeable necks theoretically allow optimization of hip joint biomechanics via selective restoration of femoral anteversion, offset, and limb length. A potential disadvantage is the possible generation of metal ions and debris by fretting and crevice corrosion at the additional stem-neck interface. We present 2 cases of early-onset adverse inflammatory tissue reactions as a result of accelerated corrosion at the stem-neck interface of a dual-modular implant, requiring subsequent revision of well-fixed components.
authors.affiliation: Department of Orthopaedic Surgery, New England Baptist Hospital, Boston, MA 02120, USA.
authors.forename: S Douglas
authors.initials: SD
authors.lastname: Werner
authors.forename: James V
authors.initials: JV
authors.lastname: Bono
authors.forename: Sumon
authors.initials: S
authors.lastname: Nandi
authors.forename: Daniel M
authors.initials: DM
authors.lastname: Ward
authors.forename: Carl T
authors.initials: CT
authors.lastname: Talmo
mesh_terms: D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D001672:Biocompatible Materials; D003343:Corrosion; D005260:Female; D006621:Hip Joint; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D007249:Inflammation / Q000209:etiology*; D007592:Joint Diseases / Q000601:surgery*; D008297:Male; D008670:Metals; D008875:Middle Aged; D011474:Prosthesis Design / Q000009:adverse effects*; D011475:Prosthesis Failure; D012086:Reoperation
chemical_list: D001672:Biocompatible Materials; D008670:Metals