Comparative analisys of changes in knee strain transfer flow in total and unicompartmental cemented prostheses: a trial in ten human cadavers

• Autor(es):

  Pécora, José Ricardo;

  Rezende, Márcia Uchôa de;

  Hernandez, Arnaldo José;

  Amatuzzi, Marco Martins;

  Pereira, César Augusto Martins;

  Leivas, Tomaz Puga.

• Fonte:

  Acta Ortopédica Brasileira; volume 11, número 3, páginas 133-144. Agosto 2003.

• Assuntos:

  Arthroplasty;

  Replacement;

  knee;

  knee Prosthesis;

  femur.

• Resumo:

  Load transfer changes on cemented total and unicompartmental knee prosthesis. Experimental study on ten human cadavers. The authors compare the load transfer changes on the distal femur and proximal tibia due to cemented total and unicompartmental knee prosthesis under compressive load-bearing on ten human cadavers employing strain gauges and a Kratos 5002 stress-testing system. The conclusions were: 1) The Total knee prosthesis does not alter the load transfer on the distal femur; 2) The unicompartmental knee prosthesis increases the compression load on the femoral medial cortex and increases the strain tension loads on the femoral lateral cortex; 3) The tibial components (partial medial and total) increase the compression strain tension on the postero-medial cortex of the tibia.

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