Abstract:    Children and adolescents are increasingly suffering from articular cartilage and osteochondral deficiencies Traumatic incidents often result in damage to the joint surfaces,Surgery is indicated in young patients when conservative measures fail.The operative techniques for articular cartilage injuries traditionally performed in adults may be performed in children,while an individualized approach must be tailored according to patient and defect characteristics.Autologous chondrocyte transplantation has good biological potential,especially for large cartilage defects on the joint surface.In recent years,emerging PRP and tissue engineering technologies have not been reported in children and adolescents.Clear guidelines for defect dimensionassociated techniques have not been reported.Knee joint dimensions must be considered and correlated with respect to the cartilage defect size.In addition,the damage of the subchondral bone can not be ignored.Articular cartilage repair techniques appear to be safe in this cohort of patients,and no differences in complication rates have been reported when compared with adult patients.

Key words: Children and adolescents are increasingly suffering from articular cartilage and osteochondral deficiencies Traumatic incidents often result in damage to the joint surfaces,Surgery is indicated in young patients when conservative measures fail.The operative techniques for articular cartilage injuries traditionally performed in adults may be performed in children,while an individualized approach must be tailored according to patient and defect characteristics.Autologous chondrocyte transplantation has good biological potential,especially for large cartilage defects on the joint surface.In recent years,emerging PRP and tissue engineering technologies have not been reported in children and adolescents.Clear guidelines for defect dimensionassociated techniques have not been reported.Knee joint dimensions must be considered and correlated with respect to the cartilage defect size.In addition,the damage of the subchondral bone can not be ignored.Articular cartilage repair techniques appear to be safe in this cohort of patients,and no differences in complication rates have been reported when compared with adult patients.