Biomaterial Database

Patellar contact forces with and without patellar resurfacing in total knee arthroplasty. 1999

R Singerman, and S M Gabriel, and C B Maheshwer, and J W Kennedy

Department of Orthopaedics, Case Western Reserve University, Cleveland, Ohio 44106, USA.

Patellar contact forces were measured in 7 fresh-frozen cadaver knees during continuous flexion-extension cycling for the normal knee and after total knee arthroplasty without and with patellar resurfacing using 2 prosthesis systems with different designs for the femoral and patellar components. Analysis of variance with specimen as a repeated measure was used to examine the effect of contact surface. When compared to normal knees, total knee arthroplasty without patellar resurfacing resulted in no change in patellar contact forces. The magnitude of the inferosuperior patellar shear force increased significantly after patellar replacement with an oval, biconcave patellar component and increased further after replacement with an oval, domed patellar component. There were no significant changes in the mediolateral and anteroposterior contact force components after patellar replacement.

UI	MeSH Term	Description	Entries
D010329	Patella	The flat, triangular bone situated at the anterior part of the KNEE.	Knee Cap,Kneecap,Knee Caps,Kneecaps,Patellas
D002102	Cadaver	A dead body, usually a human body.	Corpse,Cadavers,Corpses
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001696	Biomechanical Phenomena	The properties, processes, and behavior of biological systems under the action of mechanical forces.	Biomechanics,Kinematics,Biomechanic Phenomena,Mechanobiological Phenomena,Biomechanic,Biomechanic Phenomenas,Phenomena, Biomechanic,Phenomena, Biomechanical,Phenomena, Mechanobiological,Phenomenas, Biomechanic
D018482	Muscle, Skeletal	A subtype of striated muscle, attached by TENDONS to the SKELETON. Skeletal muscles are innervated and their movement can be consciously controlled. They are also called voluntary muscles.	Anterior Tibial Muscle,Gastrocnemius Muscle,Muscle, Voluntary,Plantaris Muscle,Skeletal Muscle,Soleus Muscle,Muscle, Anterior Tibial,Muscle, Gastrocnemius,Muscle, Plantaris,Muscle, Soleus,Muscles, Skeletal,Muscles, Voluntary,Skeletal Muscles,Tibial Muscle, Anterior,Voluntary Muscle,Voluntary Muscles
D019645	Arthroplasty, Replacement, Knee	Replacement of the knee joint.	Knee Replacement, Total,Arthroplasties, Knee Replacement,Arthroplasties, Replacement, Knee,Arthroplasty, Knee Replacement,Arthroplasty, Replacement, Partial Knee,Knee Arthroplasty,Knee Arthroplasty, Total,Knee Replacement Arthroplasties,Knee Replacement Arthroplasty,Partial Knee Arthroplasty,Partial Knee Replacement,Replacement Arthroplasties, Knee,Replacement Arthroplasty, Knee,Replacement, Total Knee,Total Knee Replacement,Unicompartmental Knee Arthroplasty,Unicompartmental Knee Replacement,Unicondylar Knee Arthroplasty,Unicondylar Knee Replacement,Arthroplasty, Knee,Arthroplasty, Partial Knee,Arthroplasty, Total Knee,Arthroplasty, Unicompartmental Knee,Arthroplasty, Unicondylar Knee,Knee Arthroplasty, Partial,Knee Arthroplasty, Unicompartmental,Knee Arthroplasty, Unicondylar,Knee Replacement, Partial,Knee Replacement, Unicompartmental,Knee Replacement, Unicondylar,Total Knee Arthroplasty