Table 1 Etiology of cam and pincer lesions

Primary

Idiopathic

Idiopathic

Secondary

• Developmental

• Developmental

 • Coxa vara

 • Coxa profunda

 • Perthes disease

 • Protrusio acetabuli

 • SCFE

• Traumatic

• Traumatic

 • Post-traumatic deformity of acetabulum

 • Malunited femoral neck fracture

• Iatrogenic

• Iatrogenic

 • Overcorrection of hip dysplasia

 • Femoral head osteotomy