Linked Life Data

12202009

Source:http://linkedlifedata.com/resource/pubmed/id/12202009

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2002-8-30
pubmed:abstractText
Large full-thickness defects of articular cartilage remain a major challenge to orthopedic surgeons because of unsatisfactory results of current therapy. Many methods, such as chondrectomy, drilling, cartilage scraping, arthroplasty, transplantation of chondrocytes, periosteum, perichondrium, as well as cartilage and bone, have been tried to repair articular cartilage defects. However, the results are far from satisfactory. In this study, we applied a tissue-engineering approach to the repair of articular cartilage defects of knee joints in a porcine model. Using isolated autologous chondrocytes, polyglycolic acid (PGA), and Pluronic, we have successfully in vivo-engineered hyaline cartilage and repaired articular cartilage defects. The surface of the repaired defects appeared smooth at 24 weeks postrepair. Histological examination demonstrated a typical hyaline cartilage structure with ideal interface healing between the engineered cartilage and the adjacent normal cartilage and underlying cancellous bone. In addition, glycosaminoglycan (GAG) levels in the engineered cartilage reached 80% of that found in native cartilage at 24 weeks postrepair. Biomechanical analysis at 24 weeks demonstrated that the biomechanical properties of the tissue-engineered cartilage were improved compared with those at an earlier stage. Thus, the results of this study may provide insight into the clinical repair of articular cartilage defects.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1076-3279
pubmed:author
pubmed:issnType
Print
pubmed:volume
8
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
709-21
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Repairing large porcine full-thickness defects of articular cartilage using autologous chondrocyte-engineered cartilage.
pubmed:affiliation
Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai, People's Republic of China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't