Fig. 5From: Effects of oral treatment with chondroitin sulfate and glucosamine in an experimental model of metacarpophalangeal osteoarthritis in horsesOsteoarthritis induction by arthroscopy and macroscopic joint examination. A Schematic demonstration of the location of the grooves (#) made in the cartilage tissue of the third metacarpal condyles to induce osteoarthritis at T0 [21]. B Arthroscopic image showing the position of the arthroscopic drill to make the grooves. C Arthroscopic image showing the final aspect of the lesions in the medial condyle at T0Back to article page