title: Consistent new bone formation in 95 revisions: average 9-year follow-up.
abstract: This study evaluates the use of Wagner cementless stem for femurs with marked loss of proximal bone stock. Ninety-five hips in 89 patients were revised with a Wagner stem and prospectively studied. The indications were as follows: aseptic loosening for 84 hips, periprosthetic fracture for 5, Girdlestone for 3, mechanical loosening for 2 and recurrent dislocation for 1. The mean follow-up was 108 months (range, 84-180 months; SD, 13.5). There was only 1 re-revision, 2 months after surgery, and the survival rate at 9 years was 98.5%. The mean Merle d'Aubigné score improved from 8.8 to 16.1 (P<0.001). There were 15 (15.8%) intraoperative fractures, 5 (5.3%) dislocations, 2 (2.1%) thrombosis, and 2 (2.1%) sciatic neuropraxia. Significant bone formation occurred around the Wagner stem in 97% of the hips in these cases. No radiolucency or loosening had been diagnosed at the last follow-up.
authors.affiliation: Department of Orthopedics, University Hospital of Ioannina, Department of Orthopedics, Greece.
authors.forename: George
authors.initials: G
authors.lastname: Mantelos
authors.forename: Panagiotis
authors.initials: P
authors.lastname: Koulouvaris
authors.forename: Hlias
authors.initials: H
authors.lastname: Kotsovolos
authors.forename: Theodoros
authors.initials: T
authors.lastname: Xenakis
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation* / Q000706:statistics & numerical data*; D005260:Female; D005500:Follow-Up Studies; D006115:Greece / Q000453:epidemiology; D006622:Hip Prosthesis / Q000706:statistics & numerical data*; D006801:Humans; D007593:Joint Instability / Q000453:epidemiology* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D017063:Outcome Assessment, Health Care; D015995:Prevalence; D011475:Prosthesis Failure; D012086:Reoperation / Q000706:statistics & numerical data; D016896:Treatment Outcome