Clinical Findings
Foal 1: Physical examination revealed pyrexia (39.6°C). Static examination revealed marked effusion of both tibiotarsal and LFTJs, including the subextensorius recess (SER). The foal showed a non-weight-bearing left hindlimb (LH) lameness (American Association of Equine Practitioners (AAEP) grade 5/5).
Foal 2: Physical examination revealed pyrexia (39.7°C). Static examination revealed marked joint effusion of the radio- and inter-carpal, tibiotarsal, and femoropatellar joints, bilaterally, as well as both LFTJs. The foal was lame on all four limbs at walk, with the LH being the lamest limb (AAEP grade 4/5).
Foal 3: Physical examination revealed pyrexia (39.9°C). Static examination revealed heat, swelling and pain on palpation over the lateral right (R) stifle and tibia, with moderate effusion of the SER. A right hindlimb (RH) lameness was seen at a walk (AAEP grade 4/5).