The influence of lateral release on patello-femoral joint loading in knee arthroplasty

✍ Scribed by A. Wackerhagen; F. Bodem; Ch. Hopf; E. Palme

• Publisher: Springer
• Year: 1992
• Tongue: English
• Weight: 501 KB
• Volume: 16
• Category: Article
• ISSN: 0341-2695
• DOI: 10.1007/bf00182978

✦ Synopsis

Eight fresh, cadaveric knees have been fitted with four different total knee cemented prostheses. Loading forces at the bone implant fixation interface of the patella component have been measured in a knee joint testing rig by four miniaturized force transducers, before and after a lateral release of the patellar retinaculum. The lateral release resulted in a significant local force reduction in the lateral and~or proximal quadrant of the patella resection plane depending on the knee flexion angle, quadriceps tensile force direction, and the patellar prosthesis design.

R~sum~. Les forces de compression au niveau de l'interface entre os et m6daillon rotulien ont 6td mesurges en quatre points precis it l'aide d'un appareil it tester le genou, avant et aprOs section de l'aileron rotulien externe. Une arthropIastie standard du genou a 6t6 rdalis6e sur 8 articulations cadav6riques frafches en utilisant quatre diff6rents modules d'implants. La section de l'aileron rotulien externe entrafne une diminution significative des forces exercdes sur les quadrants externe et/ou proximal du