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Dissociation of the tibial component in total knee replacements
P F Davis1, J R Bocell, H S Tullos
1Division of Orthopedic Surgery, Baylor College of Medicine, Houston, Texas 77030.
Clinical Orthopaedics and Related Research
|November 11, 1991
Abstract:
Dissociation of the polyethylene component from its metal backing in total knee arthroplasty is a recognized problem regarding the patella. Two cases of dissociation of the metal-backed tibial component from its polyethylene articulating surface presented symptoms of prosthesis failure: persistent pain, swelling, sensations of instability, and gait difficulty. Investigations ruled out prosthesis malalignment, loosening, and sepsis. Precise diagnosis of dissociation of the tibial component was made by diagnostic arthroscopy.