[Osteotomy as access: iliac spine and iliac crest]

Autologous bone transplants are still the gold standard for defect filling materials and no other material has such a high biological potential. Proven surgical techniques for harvesting cancellous and cortical autografts in the pelvis, the problems and complications are described. The second part of the paper explains the safe handling of osteotomy of the superior anterior iliac spine for pelvic osteotomy and tumor surgery.