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- W2245026698 abstract "The goals of revision arthroplasty of the hip are to relieve pain and to improve function. These goals can be accomplished by insertion of a new implant with stable fixation of the interface and restoration (or at least near restoration) of the anatomy.Stable fixation may be achieved with use of components inserted either with cement12,55 or without cement11,32. However, marked osteolysis caused by wear debris, abrasion, or inflammation may make this task extremely difficult14,19-21,29,33,38,44,46.If there is no loss of bone stock, the anatomy may be restored by simply inserting a new implant. If there is loss of bone stock on either the acetabular or the femoral side, however, the deficit should be categorized as either contained or uncontained and should be dealt with accordingly.Contained, or cavitary, defects are more easily dealt with because the skeleton, while weakened, is basically intact. A contained defect of the acetabulum is one in which the anterior and posterior columns and the peripheral supporting bone for the acetabular component are intact. A pelvis with a contained defect can support an implant with a little help. This help may be biological (in the form of a bone graft) or it may involve modification of the implant. Impaction grafting with use of morseled bone is a biological alternative53. Large cups and asymmetrical cups that are designed to make contact with host bone, with no or minimum use of morseled bone, are examples of modified implants that may be used to treat a cavitary defect56.Uncontained, or segmental, defects are more of a challenge. Small and even moderate defects can be dealt with by placing the implant against …" @default.
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- W2245026698 date "1998-03-01" @default.
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- W2245026698 title "Instructional Course Lectures, The American Academy of Orthopaedic Surgeons - Revision Arthroplasty of the Acetabulum in Association with Loss of Bone Stock*†" @default.
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- W2245026698 doi "https://doi.org/10.2106/00004623-199803000-00019" @default.
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