Long-term behaviour of the Charnley offset-bore acetabular cup
| Autor: | Evangelos A. Magnissalis, Theologos T Ioannidis, Nikolas Zacharakis, George Eliades, George Hartofilakidis |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
musculoskeletal diseases
Adult medicine.medical_specialty Radiodensity medicine.medical_treatment Arthroplasty Replacement Hip Total hip replacement Dentistry Prosthesis Design Prosthesis Medicine Hip Dislocation Humans Orthopedics and Sports Medicine Revision rate Aged business.industry Follow up studies Acetabulum Middle Aged equipment and supplies Arthroplasty Surgery Treatment Outcome Orthopedic surgery Female Hip Prosthesis business Follow-Up Studies |
| Zdroj: | The Journal of bone and joint surgery. British volume. 80(1) |
| ISSN: | 0301-620X |
| Popis: | We report the long-term radiological results of 58 total hip arthroplasties (THA) using the Charnley offset-bore acetabular socket. Wear was measured at four sites and radiolucent lines and possible migration were recorded. Four cups were retrieved at revision and were examined using light microscopy, SEM and X-ray microanalysis. At a mean follow-up of seven years the mean wear in the DeLee and Charnley zone I was 0.4 mm and in zone II 0.26 mm. The wear rate was 0.06 and 0.04 mm/year, respectively. Progression of radiolucent lines was seen in five cases (8.6%). Three sockets (5.2%) were revised because of aseptic migration at a mean follow-up of 9.8 years and one socket for infection at two years. The offset-bore acetabular cup had excellent wear behaviour and a low migration and revision rate. We recommend that it should be considered in THA since the use of small cups is increasing, particularly in revision cases. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|