Volume 2 of this comprehensive and state-of-the-art text on pediatric orthopedic deformities focuses on conditions of the lower extremity. Developmental disorders of the hip – developmental dysplasia of the hip (DDH), Legg-Calvé-Perthes disease (LCP), coxa vara including slipped capital femoral epiphysis (SCFE), and femoroacetabular impingement (FAI) – the knee, the ankle and foot, as well as rotational and angular deformities of the lower limb are discussed in detail. Presentation for each deformity includes: definition, detailed review of the pathoanatomy, experimental biological investigations (where applicable), natural history, review of the evolution of diagnostic and treatment techniques, results achieved with the various approaches, and current management approaches with detailed descriptions of surgical technique. Extensive illustrations, figures and photos provide clear visual depictions of the range of deformity for the various disorders, underlying histopathology, imaging findings and treatment approaches. Multiple tables provide concentrated information, especially for the treatment options based on the severity of the particular disorder and deformity. Based on a solid understanding of the underlying pathobiology of deformities of the developing musculoskeletal system, this second volume of Pediatric Orthopedic Deformities provides a penetrating, in-depth presentation on the lower extremity for pediatric orthopedic surgeons, adult orthopedic surgeons seeking a deeper understanding of how deformities developed, and all clinicians caring for pediatric patients with developmental deformities.