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Study identifies potential fix for damaged knees
Date:7/9/2009

Investigators from Hospital for Special Surgery have shown that a biodegradable scaffold or plug can be used to treat patients with damaged knee cartilage. The study is unique in that it used serial magnetic resonance imaging (MRI) and newer quantitative T2 mapping to examine how the plug incorporated itself into the knee. The research, abstract 8372, will be presented during the annual meeting of the American Orthopedic Society for Sports Medicine, June 9-12, in Keystone, Colo.

"The data has been encouraging to support further evaluation of this synthetic scaffold as a cartilage repair technique," said Asheesh Bedi, M.D., a fellow in sports medicine and shoulder surgery at Hospital for Special Surgery who was involved with the study. Dr. Bedi performed analysis of MRI scans of patients primarily treated by Riley Williams, M.D., director of the Institute for Cartilage Repair at Hospital for Special Surgery. "The Trufit plug has been designed to have mechanical properties that are similar to cartilage and bone," Dr. Bedi said.

Damage to so-called articular cartilage can occur in various ways, ranging from direct trauma in a motor vehicle accident to a noncontact, pivoting event on the soccer field. "Articular cartilage lacks the intrinsic properties of healingyou are essentially born with the articular cartilage that you have," Dr. Bedi said. Left untreated, these injuries can increase loads placed on the remaining intact cartilage and increase the risk of progression to degenerative arthritis. One way to treat patients with symptomatic chondral lesions is an OATS procedure, in which cartilage is transferred from one portion of the knee to treat another. Because this is a "robbing Peter to pay Paul" situation, researchers at Hospital for Special Surgery set out to examine whether they could use a biodegradable plug, the Trufit CB plug, to fill the donor site. The goal was to monitor how the plug incorporated itself into the knee and to evalua
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Contact: Phyllis Fisher
fisherp@hss.edu
212-606-1197
Hospital for Special Surgery
Source:Eurekalert

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