Isolated Acetabular Liner Exchange
| Autor: | John M Keggi, Kristaps J. Keggi, Robert Kennon, Lee E. Rubin |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Reoperation
musculoskeletal diseases Osteolysis Arthroplasty Replacement Hip medicine.medical_treatment Dentistry Bone grafting Prosthesis Design Bearing surface medicine Humans Orthopedics and Sports Medicine Cementation Physical Therapy Modalities Acetabular liner Bone Transplantation business.industry Mechanical failure Treatment options Acetabulum equipment and supplies medicine.disease Arthroplasty Prosthesis Failure Equipment Failure Analysis Acetabular component Polyethylene Surgery Hip Prosthesis business |
| Zdroj: | Journal of the American Academy of Orthopaedic Surgeons. 16:243-248 |
| ISSN: | 1067-151X |
| Popis: | During the past two decades, most total hip arthroplasties were performed with metal or ceramic heads on conventional polyethylene, an articulation associated with wear and limited life expectancy. Wear is associated with acetabular osteolysis. Isolated liner exchange has become a common surgical intervention when the acetabular component remains well-fixed. The purpose of isolated liner exchange is to prevent loosening of the components secondary to osteolysis and catastrophic mechanical failure caused by bearing wear-through. Treatment options for polyethylene wear include observation (in the asymptomatic hip), liner exchange, and more extensive revision procedures. Patients frequently present with asymptomatic but substantial polyethylene wear with or without associated osteolysis, the treatment of which is controversial. Other areas of debate include complete acetabular component removal to allow bone grafting and placement of an improved bearing surface, reuse of modular mechanisms, cementation into well-fixed shells, and whether to use periacetabular bone grafting. |
| Databáze: | OpenAIRE |
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