Changes

*Pathogenesis:

*Pathogenesis:

**Joint laxity / acetabular dysplasia

**Joint laxity / acetabular dysplasia

**-> Flattened femoral head +/- mild or severe periarticular [[Musculoskeletal terminology|osteophyte]] formation

**-> Flattened femoral head +/- mild or severe periarticular [[Musculoskeletal Terminology - Pathology|osteophyte]] formation

**-> Thickening of femoral head + degeneration of [[Joints - normal#Articular cartilage|articular cartilage]]

**-> Thickening of femoral head + degeneration of [[Joints - normal#Articular cartilage|articular cartilage]]

**[[Musculoskeletal terminology|Eburnation]]

**[[Musculoskeletal Terminology - Pathology|Eburnation]]

*Predisposes to [[Joints Degenerative - Pathology#Degenerative joint disease (DJD)|DJD]]

*Predisposes to [[Joints Degenerative - Pathology#Degenerative joint disease (DJD)|DJD]]

*Round ligament of femoral head may rupture -> luxation

*Round ligament of femoral head may rupture -> luxation

**Normally, they unite between 4-6 months of life

**Normally, they unite between 4-6 months of life

*May partially or totally separate from each other

*May partially or totally separate from each other

*Intra-articular irritation -> [[Joints Degenerative - Pathology#Degenerative joint disease (DJD)|DJD]] with [[Musculoskeletal terminology|osteophyte]] formation within the joint

*Intra-articular irritation -> [[Joints Degenerative - Pathology#Degenerative joint disease (DJD)|DJD]] with [[Musculoskeletal Terminology - Pathology|osteophyte]] formation within the joint