Changes

**Nutritional  

**Nutritional  

*Essentially idiopathic  

*Essentially idiopathic  

*Failure of [[Bones - normal#Bone development|endochondral ossification]]

*Failure of [[Bones and Cartilage - Anatomy & Physiology|endochondral ossification]]

*Lesions bilateral in 70% of cases but lameness often unilateral, sometimes no clinical signs

*Lesions bilateral in 70% of cases but lameness often unilateral, sometimes no clinical signs

*Some authors consider this condition more generalised, in which case e.g. [[Joints Developmental - Pathology#Elbow dysplasia|ununited anconeal process]] would be part of osteochondrosis syndrome

*Some authors consider this condition more generalised, in which case e.g. [[Joints Developmental - Pathology#Elbow dysplasia|ununited anconeal process]] would be part of osteochondrosis syndrome

***May interfere with joint function

***May interfere with joint function

**Lysis → bone cysts

**Lysis → bone cysts

**Focal disruption of [[Bones - normal#Bone development|endochondral ossification]]

**Focal disruption of [[Bones and Cartilage - Anatomy & Physiology|endochondral ossification]]

**-> Angular limb deformities and [[Joints Degenerative - Pathology#Degenerative joint disease (DJD)|degenerative joint disease]]

**-> Angular limb deformities and [[Joints Degenerative - Pathology#Degenerative joint disease (DJD)|degenerative joint disease]]

**May be present together with '''synovitis'''

**May be present together with '''synovitis'''

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

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

===Arthrogryposis===

===Arthrogryposis===