Ultrasonography (US) of LFTJ on admission
Foal 1: Marked effusion of the left (L) LFTJ and SER was seen with hyperechoic synovial fluid and fibrin formation (Figures 2 a & b). The LM was abnormal in shape, protruding beyond the level of the tibial/femoral condyles, with a horizontal hypoechoic line running through it (Figures 2 a & b).
Foal 2: Moderate effusion of the L LFTJ and SER was seen, with fibrin formation in the caudal pouch and surrounding the LM (Figure 1 a). The synovium and joint capsule were thickened. The LM was abnormal in shape, protruding beyond the level of the tibial/femoral condyles, with a hypoechoic region within it (Figure 1 a).
Foal 3: Marked effusion of the R LFTJ and SER was seen, with fibrin accumulation at the distal aspect of the SER. The LM was largely protruding beyond the level of the tibial/femoral condyles, with a heterogenous appearance and a hypoechoic line running through it.