6533b7d7fe1ef96bd1268ee9

RESEARCH PRODUCT

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

Ch. HopfA. WackerhagenF. BodemE. Palme

subject

musculoskeletal diseasesKnee Jointmedicine.medical_treatmentTransducersIn Vitro TechniquesKnee JointProsthesis DesignProsthesisWeight-BearingCadaverHumansMedicineOrthopedics and Sports MedicineFixation (histology)OrthodonticsLateral releasebusiness.industryPatellamusculoskeletal systemArthroplastyLigaments ArticularSurgeryPatellaKnee ProsthesisbusinessCadaveric spasmhuman activities

description

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.

https://doi.org/10.1007/bf00182978