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Table 3 Number and percentage of horses, with specific OC(D) in different joints, obtained from pre-purchase radiographs of 1,231 Dutch Warmblood horses.

From: Incidence of osteochondrosis (dissecans) in Dutch warmblood horses presented for pre-purchase examination

Horses OC(D), (%) n = 1,231 Horses with OCD Horses with OC Total number of horses with OC(D)
Joints    
Tarsocrural (TC) 167 (13.6%) 30 (2.4%) 197 (16%)
Bilateral TC 27 (2.2%) 53 (4.3%) 80 (6.5%)
Distal intermediate ridge tibia (DIRT) TC 118 (9.6%) - 118 (9.6%)
Bilateral DIRT TC 53 (4.3%) - 53 (4.3%)
Medial malleolus TC 11 (0.9%) - 11 (0.9%)
Medial trochlear ridge TC 25 (1.9%) 12(1%) 37 (2.9%)
Lateral trochlear ridge TC 13 (1.1%) 18 (1.4%) 31 (2.5%)
Femoropatellar (FP) 121 (6.8%) 37 (3%) 158 (9.8%)
Bilateral FP 10 (0.8%) 29 (2.4%) 39 (3.2%)
Lateral trochlear ridge of femur FP 53 (4.3%) 23 (1.9%) 76 (6.2%)
Patella FP 38 (3.1%) 7 (0.6%) 45 (3.7%)
Medial trochlear ridge FP 27 (2%) 4 (0.3%) 31 (2.3%)
Trochlear groove FP 13 (1%) 3 (0.2%) 16 (1.2%)
Metacarpophalangeal (MCP) 49(4%) 26(2.1) 75(6.1%)
Bilateral MCP 12 (1%) 12 (1%) 24 (2%)
Dorsal margin P1 MCP 31 (2.5%) 15 (1.2%) 46 (3.7%)
Palmar margin P1 MCP 5 (0.4%) - 5 (0.4%)
Dorsal sagittal ridge MCP 13 (1.1%) 11 (0.9%) 24 (2%)
Metatarsophalangeal (MTP) 96 (7.9%) 9 (0.7%) 105 (8.6%)
Bilateral MTP 88 (7.2%) 9 (0.7%) 97 (7.9%)
Dorsal margin P1 MTP 45 (3.7%) 8 (0.6%) 53 (4.3%)
Plantar margin P1 MTP 39 (3.2%) - 39 (3.2%)
Dorsal sagittal ridge MTP 12 (1%) 1 (0.1%) 13 (1.1%)
Proximal interphalangeal (PIP) 5 (0.4%) - 5 (0.4%)
Distal interphalangeal (DIP) 16 (1.3%) - 16 (1.3%)
Bilateral DIP 5 (0.4%) - 5 (0.4%)
Total 443 (36%) 102 (8.3%) 545 (44.3%)