1Steppacher SD,Tannast M,Ganz R,et al. Mean 20 -year follow- up of bernese periaeetabular osteotomy[J]. Clin Orthop Relat Res, 2008,466(7) : 1663.
2Amstutx HC, Antoniades JT, Le Duf MJ. Ressults of metal -on- emtal hybrid hip resurfacing for crowe type I and II developmental dysplasia[J]. J Bone Joint Surg Am,2007,89(2):339.
3McCarthy JJ, Scoles P, MacEwen G. Developmental dysplasia of the hip (DDH) [J] . Current Orthopaedics, 2005, 19 (3) : 223.
4Carol D, Karen R. Developmental dysplasia of the hip [ J] . Lancet, 2007, 369 (9572): 1541.
5Inan M, Korkusuz F. Developmental dysplasia of the hip : editorial com- ment [J] . Clin Orthop Relat Res, 2008, 466 (4) : 761.
6Graf R. Guide to sonography of the infant hip [ A] . Sonographic asses- ment of hip maturity using a sonometric scale [ C ] . Suttgart Thieme, 1987 : 65 - 67.
