title: The C-stem in clinical practice: fifteen-year follow-up of a triple tapered polished cemented stem.
abstract: The triple tapered polished cemented stem, C-Stem, introduced in 1993 was based on the original Charnley concept of the "flat back" polished stem. We present our continuing experience with the C-Stem in 621 consecutive primary arthroplasties implanted into 575 patients between 1993 and 1997. Four hundred and eighteen arthroplasties had a clinical and radiological follow-up past 10 years with a mean follow-up of 13 years (10-15). There were no revisions for stem loosening but 2 stems were revised for fracture - both with a defective cement mantle proximally. The stem design and the surgical technique support the original Charnley concept of limited stem subsidence within the cement mantle and the encouraging results continue to stand as a credit to Sir John Charnley's original philosophy.
authors.affiliation: John Charnley Research Institute, Wrightington Hospital, WN6 9EP Wigan, UK.
authors.forename: Bodo
authors.initials: B
authors.lastname: Purbach
authors.forename: Peter R
authors.initials: PR
authors.lastname: Kay
authors.forename: Paul D
authors.initials: PD
authors.lastname: Siney
authors.forename: Patricia A
authors.initials: PA
authors.lastname: Fleming
authors.forename: B Michael
authors.initials: BM
authors.lastname: Wroblewski
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D001843:Bone Cements; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging / Q000601:surgery*; D005500:Follow-Up Studies; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000601:surgery; D006622:Hip Prosthesis / Q000145:classification*; D006801:Humans; D015994:Incidence; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000601:surgery*; D057068:Periprosthetic Fractures / Q000453:epidemiology / Q000601:surgery; D011474:Prosthesis Design; D011859:Radiography; D012086:Reoperation; D012189:Retrospective Studies; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D001843:Bone Cements
keywords: C-Stem; Charnley concept; polished cemented stem; triple tapered stem