Summary
This study describes the appearance of ‘joint mice’ in the sheath of the deep digital
flexor muscle tendon (DDFT) due to osteochondritis dissecans (OCD) lesions in the
talocrural joint of 12 dogs. Surgical excision of all free fragments in the DDFT sheath
was performed in five dogs, and their clinical progression was documented. The excision
of free fragments from the DDFT sheath, but not arthro-tomy, proved clinically beneficial
despite the presence of degenerative joint disease. The anatomical communication between
the talocrural joint and the DDFT sheath and its dimensions are further illustrated
with the use of contrast media and dissection of cadaver limbs.
Keywords
OCD - joint mice - deep digital flexor muscle - talocrural joint - dog