title: High short-term loosening rates with the Wagner Standard Cup.
abstract: The stability of prosthetic fixation is to a large extent dependent on component design. The purpose of this study is to analyze the short-term radiological results obtained with the Wagner Standard Cup in primary hip arthroplasty. An assessment was made of one hundred primary hip arthroplasties. The radiological evaluation revealed bone ingrowth in 37 of cases, fibrous integration in 49 and loosening in 14. In summary, osseointegration of the Wagner Standard Cup was unsuccessful in a high percentage of cases. This finding, which was unrelated to the type of stem or bearing surface used, bore a statistically significant relation (P<0.05) with an observed poor bone coverage of the acetabular component. Although insufficient bone coverage could arguably be attributable to a poor surgical technique, we would tend to agree with other authors that it is rather likely to result from a flawed implant design that impedes osseointegration.
authors: Orthopaedic Department, Hospital Universitario Parc Taulí, Sabadell 08208, Barcelona, Spain.
authors: Vanesa
authors: V
authors: Ros
authors: Marta
authors: M
authors: Martínez Alvarez
authors: Salvador
authors: S
authors: Fernández
authors: Ramon
authors: R
authors: Girvent
authors: Alejandro
authors: A
authors: Carballo
authors: Gabriel
authors: G
authors: Gili
authors: Pere
authors: P
authors: Torner
mesh_terms: D000077:Acetabulum / Q000601:surgery*; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip; D005260:Female; D006621:Hip Joint / Q000601:surgery*; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D007592:Joint Diseases / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D016348:Osseointegration; D011474:Prosthesis Design / Q000009:adverse effects*; D011475:Prosthesis Failure
keywords: Wagner Standard Cup; osteointegration; periprosthetic radiolucencies; primary and secondary stability; total hip arthroplasty