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2Principles

Apex fracture of the proximal sesamoid bone - removal

Arthroscopic portal

The animal is positioned on the surgery table either in dorsal recumbence or in lateral recumbency with the injured proximal sesamoid bone up.

Dorsal recumbency allows the insertion of the arthroscope from the contralateral palmar pouch to facilitate better visualization and an unfretted region for instrument insertion and manipulation during fragment removal.

In lateral recumbency the arthroscope is inserted through the proximal most aspect of the palmar pouch, whereas the instruments are inserted through a separate incision at the level of the fracture plane.