Polyethylene Exchange in a Second-Generation Cementless Acetabular Component

Abstract Some have suggested that isolated polyethylene exchange in a well-fixed Harris-Galante II acetabular component (Zimmer, Warsaw, Ind) necessitates cementing the liner or complete revision because the locking mechanism is suboptimal. We reviewed 29 hip revisions during which the polyethylene...

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Bibliographic Details
Published in:The Journal of arthroplasty 2009-09, Vol.24 (6), p.69-72
Main Authors: Archibeck, Michael J., MD, Junick, Daniel W., MD, Cummins, Tamara, RT(R)(ARRT), Carothers, Joshua, MD, White, Richard E., MD
Format: Article
Language:English
Subjects:
Acetabulum
Adult
Aged
Aged, 80 and over
Arthroplasty, Replacement, Hip - instrumentation
Arthroplasty, Replacement, Hip - methods
cementless acetabular component
Female
Follow-Up Studies
Harris-Galante
Hip Joint - diagnostic imaging
Hip Joint - surgery
Hip Prosthesis
Humans
Male
Middle Aged
Orthopedics
Polyethylene
Prosthesis Design
Prosthesis Failure
Radiography
Reoperation
Retrospective Studies
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Summary:Abstract Some have suggested that isolated polyethylene exchange in a well-fixed Harris-Galante II acetabular component (Zimmer, Warsaw, Ind) necessitates cementing the liner or complete revision because the locking mechanism is suboptimal. We reviewed 29 hip revisions during which the polyethylene was exchanged using the native locking mechanism. Mean follow-up was 5.1 years (2-13 years). Of the 29 patients, one had a disengagement of the revision polyethylene at 2.5 years. At the time of this patient's original revision, one of the tines was fractured, but a direct exchange was performed. There were 4 other revisions (one for loosening and 3 for instability). There were no other complications attributable to the direct polyethylene exchange and no further reoperations. This series suggests that polyethylene exchange with the Harris-Galante II prosthesis can be performed safely using the native locking mechanism in the absence of fractured tines.
ISSN:0883-5403
1532-8406
DOI:10.1016/j.arth.2009.05.004