The S-ROM stem: versatility of stem/sleeve combinations and head options.

The S-ROM stem (DePuy Orthopaedics Inc., Warsaw, Ind) is a modular cementless hip implant that has a modular proximal sleeve that mates with a fluted stem. Various sleeves, stem lengths, diameters, proximal body types, and heads can be configured into 10,398 combinations. Independence of the sleeve and stem version permits correction of excessive anteversion found in types of dysplasia and the retroversion deformities found in revision total hip arthroplasty (THA). The fluted distal segment provides stability if a corrective osteotomy is required. The stem is a versatile tool in primary or onversion hip arthroplasty with unusual deformity and in revision THA.