Birmingham臀部重塑系统是由Smith & Nephew公司(Memphis, TN, USA)的整型外科重建分部制造的，是一种光滑的铬钴球型套筒关节连接装置，能够保留患者自然骨骼结构和稳定性，全金属移植物覆盖关节表面，更象一个牙齿帽状结构而不是一个臀部移植物。这就减少了术后脱臼和下肢长度不准确的危险，因为臀部重塑系统是全金属移植物，因此比传统使用金属球和塑料槽状结构的产品更加持久耐用。该产品已经获得了美国食品药品管理局的批准。

　　Hip Resurfacing Better for Active Patients
 
　　Hip resurfacing, a new alternative for total hip replacement, offers an innovative option for patients suffering from hip pain who do not want to give up their active lifestyle.

　　The Birmingham hip-resurfacing system, manufactured by the Orthopaedic Reconstruction Division of Smith & Nephew (Memphis, TN, USA) is a smooth chrome-cobalt ball-and-socket joint that preserves more of the patient s natural bone structures and stability, covering the joint s surfaces with an all-metal implant that more closely resembles a tooth cap than a hip implant. This approach reduces post-operative risks of dislocation and inaccurate leg length, and because the hip resurfacing system is an all-metal implant, it has the potential to last longer than traditional hip implants that use a metal ball and a plastic socket. The system has been approved by the U.S. Food and Drug Administration (FDA).