The effects of high molecular weight hyaluronic acid (Hylan G-F 20) on experimentally induced temporomandibular joint osteoartrosis: part II


Duygu G., Guler N., Cam B., Kurkcu M.

INTERNATIONAL JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY, cilt.40, ss.1406-1413, 2011 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 40 Konu: 12
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.ijom.2011.07.909
  • Dergi Adı: INTERNATIONAL JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY
  • Sayfa Sayısı: ss.1406-1413

Özet

The aim of this study was to determine the efficacy of Hylan G-F 20 on experimentally induced osteoarthritic changes in rabbit temporomandibular joint (TMJ). A 3 mg/ml concentration of sodium mono iodoacetate (MIA) had been injected into both joints of 24 rabbits to create osteoartrosis. The study group was injected with Hylan G-F 20 in one joint and saline in the contralateral joint as a control (once a week for 3 weeks). Histological changes in articular cartilage, osteochondral junction, chondrocyte appearance and subchondral bone were determined at 4, 6, and 8 weeks. Regarding cartilage, there was a statistically significant difference between the two groups at 4 weeks. Degenerative bony changes to subchondral bone were significantly higher in the controls. No statistical difference was found in the study group at 6 weeks. A positive correlation was found between osteochondral junction and subchondral bone in the study group at 8 weeks. The changes in chondrocyte appearance were significantly decreased in the study group at all follow-up times. Intra-articular injection of Hylan G-F 20 decreased cartilage changes in early stage TMJ osteoartrosis and clustering of chondrocytes showed the chondroprotective effects of Hylan G-F 20 caused by hypertrophic responses.