Laminitis is a serious and very painful condition in horses. It involves lesions developing in the keratogenic membrane (chorion), particularly the laminae, and has an initial rapid evolution before becoming chronic. The short and long term consequences for the horse are often very serious and can require the owner to make some difficult choices. The causes are diverse and variable: individual predisposition, hormonal imbalance, over-rich food, foaling, overloading to compensate for pain in another limb... Early treatment is essential. A specific biomechanical solution can be used as part of the treatment for acute laminitis to provide relief to the horse by redistributing the contact between the wall, sole and frog thereby limiting the aggravation of the chorionic lesions.