Avaliação histológica e imunohistoquímica da ATM de ratos wistar adultos após meniscectomia unilateral com enxerto de cartilagem auricular autógena. / Histological and imunohistochemical evaluations of the TMJ in adult wistar rats after unilateral meniscectomy with autogenous auricular cartilage graft.
AUTOR(ES)
Dorival Terra Martini
DATA DE PUBLICAÇÃO
2008
RESUMO
The morphological features of the temporomandibular joint (TMJ) of rats were studied after meniscectomy in the left side of the joint. The specimens were submitted or not to an interpositional auricular cartilage graft. The animals formed the following groups: GI (meniscectomy); GII (meniscectomy and graft); GIII (sham). The post-operative periods (10, 30 days) and the side allowed to form the subgroups. The articular surface of the TMJ exhibited organized layers (GIII, GId, GIId groups) where the type I collagen fibers arranged in regular nets prevailed. Morphological changes as erosion of the articular surface with large subchondral cysts in the subjacent bone were verified (GIe, GIIe). The condyles surface of GII was regular and structurally preserved under the graft. The type I collagen fibers constituted the articular and chondroblastic layers in the GIe and GIIe animals where the type III collagen fibers were predominant in the prechondroblastic layer. Wide vascular spaces were evident in the bilaminar zone of the GI and GII animals.
ASSUNTO(S)
cartilagem meniscectomia articulação temporomandibular autogenous graft meniscectomy enxerto autógeno cartilage brdu temporomandibular joint ultra-estrutura ultrastructure brdu
Documentos Relacionados
- Morfometria testicular em ratos wistar adultos tratados com paracetamol (acetaminofeno)
- Antibodies to collagens in sera from patients receiving bovine cartilage graft.
- Cilia graft.
- Histological survey of the saphenous vein before its use as autologous aortocoronary bypass graft.
- Alterations in the articular cartilage of the femoral head of Wistar runner rats as a function of age
