Trunnion Failure in Revision Total Knee Arthroplasty.
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ABSTRACT: In revision total knee arthroplasty, joint kinematics must be maintained amid bone and ligamentous insufficiency. Current modular designs address defects while allowing for intraoperative prosthesis customization through a variety of stem extensions and constraints. Additional constraint improves knee stability while increasing stress at the implant-host interface and modular junction of the implant. This renders the prosthetic stem-condyle junction more prone to fatigue failure. We report 2 cases of prosthetic stem-condyle junction failure in in a varus-valgus constrained revision total knee arthroplasty.
SUBMITTER: Chihab S
PROVIDER: S-EPMC8167321 | biostudies-literature |
REPOSITORIES: biostudies-literature
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