title: Mosaic arthroplasty of the medial femoral condyle in horses - An experimental study.
abstract: One Arabian and 5 Hungarian half-bred horses were used to study the macroscopic and microscopic survival of autologous osteochondral grafts in the weight-bearing surface of the medial femoral condyle (MFC). Grafts were harvested from the cranial surface of the medial femoral trochlea (MFT) under arthroscopic control. Three of them were transplanted into the weight-bearing surface of the contralateral MFC using an arthrotomy approach. Three months later this transplantation procedure was repeated on the opposite stifle joints in the same animals, but at that time transplantation was performed arthroscopically. Follow-up arthroscopy was carried out 12 months after the first operations, and biopsies were taken from both the recipient and the donor sites for histological examination. During follow-up arthroscopy, the transplanted areas looked congruent and smooth. Microscopically, the characteristics of hyaline cartilage were present in 5 out of the 10 biopsies examined; however, in the other half of biopsies glycosaminoglycan (GAG) loss and change in the architecture of the transplanted cartilage was observed. In a 16-year-old horse, all grafts broke during harvesting, and thus transplantation was not performed. No radiological signs of osteoarthritic changes were detected 9 to 12 months after the operations in the donor and recipient joints. Clinically, no lameness or effusion was present three months after the transplantations.
authors: Szent István University Large Animal Clinic, Faculty of Veterinary Science Üllő Hungary University of Bern ISME, Equine Hospital, Vetsuisse Faculty Länggass-Strasse 124 3012 Bern Switzerland.
authors: Gábor
authors: G
authors: Bodó
authors: Uzsoki Hospital, Orthopaedics and Trauma Department Budapest Hungary.
authors: Gábor
authors: G
authors: Vásárhelyi
authors: Uzsoki Hospital, Orthopaedics and Trauma Department Budapest Hungary.
authors: László
authors: L
authors: Hangody
authors: Faculty of Medicine Department of Anatomy, Histology and Embryology Debrecen Hungary.
authors: László
authors: L
authors: Módis
keywords: Mosaicplasty; cartilage; horse; joint; resurfacing; stifle