Advanced Sesamoiditis

In contrast to those seen in Figure 46, the changes illustrated in Figure 47 are far more severely osteolytic and proliferative. These are certainly serious changes in the proximal sesamoid bones, however, the purpose for which the horse is to be used will determine whether he can cope with these types of changes. Inasmuch as many horses used as hunters and jumpers are obtained from the race track, the changes in the proximal sesamoid bones thus far described are frequently present as a result of the previous stress of racing. It has been my experience that these same types of changes will not significantly interfere with the performance of many hunters and jumpers. The prognosis for future usefulness must be based on the clinical appearance of the horse and its current work history (6 months of continuous work). The clinically sound individual that has been in work will have a much better prognosis for future soundness as a hunter or jumper even in the face of advanced sesamoid changes indicative of degenerative joint disease.