Changes

*Defect in cartilage growth (i.e. '''dyschondroplasia''')

*Defect in cartilage growth (i.e. '''dyschondroplasia''')

*In growing animals: large breeds of dogs (4-8 months), pigs (5-7 months) and horses (weeks - 2 years)

*In growing animals: large breeds of dogs (4-8 months), pigs (5-7 months) and horses (weeks - 2 years)

*Involves both the [[Bones - normal#Physis (Growth plate)|growth plate]] and the immature [[Joints - Anatomy & Physiology#Articular cartilage|joint cartilage]]

*Involves both the [[Bones - Anatomy & Physiology|growth plate]] and the immature [[Joints - Anatomy & Physiology#Articular cartilage|joint cartilage]]

*Multifactorial:  

*Multifactorial:  

**Trauma

**Trauma

**Not associated with retention of cartilage

**Not associated with retention of cartilage

**Separation of epiphysis from the metaphysis

**Separation of epiphysis from the metaphysis

**Likely to be due to trauma to degenerated [[Bones - normal#Physis (Growth plate)|growth plate]]  

**Likely to be due to trauma to degenerated [[Bones - Anatomy & Physiology|growth plate]]  

**Possibly the basis of ununited anconeal process and ununited coronoid process in dogs

**Possibly the basis of ununited anconeal process and ununited coronoid process in dogs