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Updated: Jul 30, 2026
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Matrix-assisted Autologous Chondrocyte Transplantation for Remodeling and Repair of Chondral Defects in a Rabbit Model
Published on: May 21, 2013
Arthroscopic mosaic arthroplasty in the equine third carpal bone
1Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Ontario, Canada N1G 2W1.
Veterinary Surgery : VS
|May 8, 2001
Summary
Autogenous osteochondral grafts transferred to a new site in horses showed good bony integration but significant cartilage degeneration. Proteoglycan loss suggests grafts did not adapt to the new biomechanical environment, limiting long-term success.
Area of Science:
- Orthopedic surgery
- Equine medicine
- Regenerative medicine
Background:
- Osteochondral defects are common in equine athletes.
- Autogenous grafts are a potential treatment, but their survival and function in heterotopic sites require investigation.
Purpose of the Study:
- To evaluate the survival and function of autogenous heterotopic osteochondral grafts in horses.
- To assess graft integration and cartilage integrity at a common injury site.
Main Methods:
- Osteochondral grafts were harvested arthroscopically from the femur and transplanted to the third carpal bone in horses.
- Histologic, histomorphometric, and biochemical analyses were performed 9 months post-transplantation.
Main Results:
- Grafts showed bony integration with the recipient site.
- Histologic evidence of cartilage degeneration was observed in 6 grafts.
- Significant loss of proteoglycans from transplanted cartilage was detected biochemically.
Conclusions:
- Heterotopic osteochondral graft transfer is technically feasible in horses.
- Graft failure may be due to injury during harvesting/implantation or inability to remodel to the new biomechanical environment.
- Long-term success requires matching donor and recipient sites for cartilage properties and biomechanical demands.
