title: A 5-8 year retrospective follow-up of the C-stem AMT femoral component: patient reported outcomes and survivorship analysis.
abstract: We report midterm functional, radiographic and survivorship data for the cemented, triple taper C-stem AMT femoral component from a consecutive cohort of 415 hip arthroplasties in 386 patients at a non-developer centre. Follow-up ranges were from 60 to 99 months, with a mean of 76 months. 32 hips were lost to follow-up. The median OHS was 40, median SF-12 mental component score (MCS) was 50, and median SF-12 physical component score (PCS) was 39. At 99 months follow up, stem survivorship is 96.9% (95% confidence interval (CI) 82.5-99.5), and construct survivorship is 96.0% (95% CI 84.2-99.0). Adverse events such as calcar fracture, greater trochanter fracture and dislocation were rare at <1%. There have been no revisions for aseptic loosening.
authors.affiliation: University of Bristol Musculoskeletal Research Unit, AOC (Lower Level), Southmead Hospital, Westbury-on-Trym, Bristol, UK.
authors.forename: James R
authors.initials: JR
authors.lastname: Berstock
authors.affiliation: University of Bristol Musculoskeletal Research Unit, AOC (Lower Level), Southmead Hospital, Westbury-on-Trym, Bristol, UK.
authors.forename: Michael R
authors.initials: MR
authors.lastname: Whitehouse
authors.affiliation: University of Bristol Musculoskeletal Research Unit, AOC (Lower Level), Southmead Hospital, Westbury-on-Trym, Bristol, UK.
authors.forename: Danielle C
authors.initials: DC
authors.lastname: Piper
authors.affiliation: University of Bristol Musculoskeletal Research Unit, AOC (Lower Level), Southmead Hospital, Westbury-on-Trym, Bristol, UK.
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Eastaugh-Waring
authors.affiliation: University of Bristol Musculoskeletal Research Unit, AOC (Lower Level), Southmead Hospital, Westbury-on-Trym, Bristol, UK.
authors.forename: Ashley W
authors.initials: AW
authors.lastname: Blom
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects* / Q000401:mortality; D001843:Bone Cements / Q000627:therapeutic use; D005260:Female; D005265:Femoral Neck Fractures / Q000401:mortality* / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000401:mortality* / Q000601:surgery*; D063868:Patient Outcome Assessment; D015995:Prevalence; D011475:Prosthesis Failure; D012086:Reoperation; D012189:Retrospective Studies; D015996:Survival Rate
chemical_list: D001843:Bone Cements
keywords: arthroplasty; bone cement; hip; replacement; survival rate; treatment outcome