Is Foundering and Laminitis the Same Thing?

The terms "laminitis" and "founder" are used interchangeably. However, founder usually refers to a chronic (long-term) condition associated with rotation of the coffin bone, whereas acute laminitis refers to symptoms associated with a sudden initial attack, including pain and inflammation of the laminae.

What does it mean for a horse to founder?

Laminitis (also termed founder) is inflammation of the laminae of the foot – the soft tissue structures that attach the coffin or pedal bone of the foot to the hoof wall. The inflammation and damage to the laminae causes extreme pain and leads to instability of the coffin bone in the hoof.

Can a founder cause laminitis?

Laminitis can be triggered by repeated concussion on hard ground (road founder), grain overload, a retained placenta, hormonal imbalance (Cushing's syndrome), certain drugs (corticosteroids), obesity, and lush grass.