Catastrophic failure of tripolar constrained liners due to backside wear: a novel failure mode.
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ABSTRACT:
SUBMITTER: Jones CW
PROVIDER: S-EPMC6123236 | biostudies-literature | 2018 Sep
REPOSITORIES: biostudies-literature
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Catastrophic failure of tripolar constrained liners due to backside wear: a novel failure mode.
Jones Christopher W CW Malahias Michael-Alexander MA Baral Elexis E Wright Timothy T Sculco Thomas P TP Sculco Peter K PK
Arthroplasty today 20180518 3
Constrained acetabular liners have been developed for patients who are at high risk for dislocation or who are undergoing revision surgery for recurrent dislocations. We report on 2 cases of failure of tripolar constrained liners due to severe backside polyethylene wear after dissociation of the outer polyethylene liner without dislocation, a mode of failure not previously reported. The backside of the inserts suffered severe polyethylene deformation, wear, and scratching due to dissociation fro ...[more]
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