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 arthropla...

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Bibliographic Details
Published in:The Journal of arthroplasty 2014, Vol.29 (1), p.172-175
Main Authors: Ros, Vanesa, MD, Martínez Alvarez, Marta, MD, Fernández, Salvador, MD, Girvent, Ramon, MD, Carballo, Alejandro, PhD, Gili, Gabriel, PhD, Torner, Pere, PhD
Format: Article
Language:English
Subjects:
Acetabulum - surgery
Adult
Aged
Aged, 80 and over
Arthroplasty, Replacement, Hip
Female
Hip Joint - surgery
Hip Prosthesis - adverse effects
Humans
Joint Diseases - surgery
Male
Middle Aged
Orthopedics
Osseointegration
osteointegration
periprosthetic radiolucencies
primary and secondary stability
Prosthesis Design - adverse effects
Prosthesis Failure
total hip arthroplasty
Wagner Standard Cup
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Summary: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.
ISSN:0883-5403
1532-8406
DOI:10.1016/j.arth.2013.03.025