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Dislocation of the polyethylene inlay due to anterior tibial slope in revision total knee arthroplasty.
Journal article

Dislocation of the polyethylene inlay due to anterior tibial slope in revision total knee arthroplasty.

  • Waelchli B Department of Orthopaedic Surgery, University of Zurich, Balgrist, 8008 Zurich, Switzerland.
  • Romero J
  • 2001-10-31
Published in:
  • Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA. - 2001
Arthroplasty, Replacement, Knee
Humans
Knee Prosthesis
Male
Middle Aged
Polyethylene
Prosthesis Failure
Tibia
English We report a case of dislocation of the polyethylene inlay in revision total knee arthroplasty. Eight days after revision arthroplasty due to a previous infection, the polyethylene inlay of a PCL- retaining cemented total knee arthroplasty dislocated at about 80 degrees of flexion on the CPM machine. Lateral X-ray examination revealed an anterior slope of the tibial cut of 5 degrees. Correction of the tibial slope to a posterior tibial slope of 7 degrees reduced the forces on the posterior aspect of the inlay and no redislocation occurred. The mechanisms causing tibial inlays to dislocate in TKA are analyzed and discussed.
Language
  • English
Open access status
closed
Identifiers
Persistent URL
https://folia.unifr.ch/global/documents/210554
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