title: Fracture of the femoral stem of the Ring TCH hip prosthesis.
abstract: We report the clinical and operative details of seven cases of fracture of the femoral stem of the Ring TiMESH cementless hip prosthesis (two were cemented and five uncemented). Six fractures occurred in the proximal one-third of the stem and one at mid-stem. The failures are attributed mainly to two defects in stem design, the narrowness of the anteroposterior dimensions and the depth of the recess for the titanium mesh pads. Great difficulty was experienced in removing the osseo-integrated distal fragments of the broken stems.
authors.affiliation: Black Notley Hospital, Braintree, England.
authors.forename: L F
authors.initials: LF
authors.lastname: Wilson
authors.forename: J F
authors.initials: JF
authors.lastname: Nolan
authors.forename: M B
authors.initials: MB
authors.lastname: Heywood-Waddington
mesh_terms: D001696:Biomechanical Phenomena; D001843:Bone Cements / Q000627:therapeutic use; D006621:Hip Joint / Q000000981:diagnostic imaging; D006622:Hip Prosthesis / Q000706:statistics & numerical data; D006801:Humans; D015994:Incidence; D008422:Materials Testing; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011859:Radiography; D013997:Time Factors; D014025:Titanium
chemical_list: D001843:Bone Cements; D014025:Titanium