title: The influence of lateral release on patello-femoral joint loading in knee arthroplasty. An experimental in vitro study.
abstract: 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.
authors.affiliation: Department of Orthopaedic Surgery, University of Mainz, Federal Republic of Germany.
authors.forename: A
authors.initials: A
authors.lastname: Wackerhagen
authors.forename: F
authors.initials: F
authors.lastname: Bodem
authors.forename: C
authors.initials: C
authors.lastname: Hopf
authors.forename: E
authors.initials: E
authors.lastname: Palme
mesh_terms: D006801:Humans; D066298:In Vitro Techniques; D007719:Knee Joint / Q000502:physiology*; D007720:Knee Prosthesis; D008023:Ligaments, Articular / Q000502:physiology; D010329:Patella / Q000601:surgery*; D011474:Prosthesis Design; D014159:Transducers; D016474:Weight-Bearing