Legg–Calvé–Perthes

egg–Calvé–Perthes disease (LCPD) is a non-inflammatory, degenerative orthopedic disorder characterized by avascular necrosis (loss of blood supply) to the femoral head
As blood flow to the capital femoral epiphysis becomes compromised, the bone undergoes ischemic necrosis, collapse, and eventual deformation, leading to joint incongruity, pain, and lameness

LCPD is common in small-breed dogs, but it is rare in cats, with only sporadic cases reported.

Although it is very rare in cats when it occurs, it typically affects young, growing cats (under 2 years old) and may be unilateral or occasionally bilateral