A 10-year minimum follow-up of hydroxyapatite-coated threaded cups: clinical, radiographic and survivorship analyses with comparison to the literature

We evaluated the clinical, radiographic, and survivorship outcomes in a series of 418 threaded hydroxyapatite-coated acetabular cups (Arc2f; Osteonics, Allendale, NJ) implanted in a consecutive series of 384 patients undergoing primary total hip arthroplasty. In all cases, the cup was screwed into t...

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Bibliographic Details
Published in:The Journal of arthroplasty 2003-02, Vol.18 (2), p.140-148
Main Authors: Epinette, Jean-Alain, Manley, Michael T, D'Antonio, James A, Edidin, Avram A, Capello, William N
Format: Article
Language:English
Subjects:
Acetabulum
Adult
Aged
Aged, 80 and over
Arthroplasty, Replacement, Hip - methods
Biocompatible Materials - therapeutic use
Durapatite - therapeutic use
Female
Follow-Up Studies
Hip Prosthesis
Humans
Male
Middle Aged
Retrospective Studies
Treatment Outcome
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Summary:We evaluated the clinical, radiographic, and survivorship outcomes in a series of 418 threaded hydroxyapatite-coated acetabular cups (Arc2f; Osteonics, Allendale, NJ) implanted in a consecutive series of 384 patients undergoing primary total hip arthroplasty. In all cases, the cup was screwed into the prepared acetabulum. Bone screws were used to provide secondary fixation. At a minimum 10-year follow-up, 304 cups were available for analysis. The cumulative survivorship (mechanical failure as endpoint) at that time was 99.43% +/- 0.0104. Two hundred seventy-six hips were available for full clinical and radiographic review at or after the tenth anniversary. No unstable implants were noted; all implant fixation interfaces were classified as "stable bone ingrown," and the cup migration rate was zero. Based on the survivorship achieved with this implant, our results compare favorably with survivorship reported for the best cemented and cementless acetabular implant designs.
ISSN:0883-5403
1532-8406
DOI:10.1054/arth.2003.50039