Ganz periacetabular osteotomy (PAO) is a joint-preserving surgical technique performed in young and active patients to correct structural deformities caused by developmental dysplasia of the hip. The procedure aims to improve femoral head coverage, thereby optimizing load distribution across the hip joint and preventing the progression of osteoarthritis. Using the modified Smith-Petersen approach, the acetabulum is reoriented while preserving the posterior column, acetabular blood supply, and hip abductor muscles. Periacetabular osteotomy has demonstrated long-term success in carefully selected patients with preserved cartilage, congruent joints, and adequate range of motion. Therefore, it is considered a valuable alternative to total hip arthroplasty in patients with correctable deformities.