1996-11-01

The Effects of Subfracture Impact Loading on the Patellofemoral Joint in a Rabbit Model 962422

This study showed that subfracture impact loading to a joint creates stresses in cartilage and bone which can initiate a chronic osteoarthrosis. The magnitude and location of the impact induced stresses are dependent on the orientation and the intensity of loading. Impact loading produced lesions on retro-patellar cartilage and their depths increased as the thickness of subchondral bone increased with time post-impact. Mechanical tests of cartilage indicated significant softening twelve months post-impact. These alterations are similar to those documented clinically as early OA. In vitro impacts of isolated limbs, together with mathematical models, showed that high mean stress generated during impact may help protect joint tissues from acute injury. This study and others are being used to develop stress-based tissue failure criteria for predicting an osteoarthrosis following subfracture impact loading.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Dynamic Analysis of ELR Retractor Spoolout

2001-01-3312

View Details

JOURNAL ARTICLE

A Bayesian Approach to Cross-Validation in Pedestrian Accident Reconstruction

2011-01-0290

View Details

TECHNICAL PAPER

Development of Pole Impact Testing at Multiple Vehicle Side Locations As Applied to the Ford Taurus Structural Platform

2006-01-0062

View Details

X