Aseptic loosening of the patellar component at the cement–implant interface
| Autor: | S. P. White, M. C. Forster, A.G. Dudhniwala, N.K. Rath |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
musculoskeletal diseases
medicine.medical_specialty Radiography medicine.medical_treatment Aseptic loosening Osteoarthritis Prosthesis Design New onset Humans Medicine Orthopedics and Sports Medicine Femur Arthroplasty Replacement Knee Cementation Orthodontics business.industry Middle Aged Osteoarthritis Knee equipment and supplies musculoskeletal system medicine.disease Arthroplasty Prosthesis Failure Surgery surgical procedures operative Knee pain Female Implant medicine.symptom Knee Prosthesis business human activities |
| Zdroj: | The Knee. 19:823-826 |
| ISSN: | 0968-0160 |
| DOI: | 10.1016/j.knee.2011.08.006 |
| Popis: | We present four cases of aseptic loosening at the implant-cement interface following patellar resurfacing. All patients initially had good results, but then presented with onset of a new anterior knee pain. The radiographs including flexed lateral and skyline view of the knee were normal in all the cases. After carefully ruling out infection, aseptic loosening at the cement-implant interface was diagnosed on further investigation. Aseptic loosening of the patellar button at the implant-cement interface can be difficult to diagnose with standard knee radiographs. During flexed lateral radiograph of the knee and the skyline view radiograph of the patellofemoral joint, the patella is compressed on the femur and thereby reducing the loose patellar button. This phenomenon has not been previously described. Patients presenting with new onset of knee pain after an initial good results following patellar resurfacing require further investigation to exclude loosening at the cement-implant interface as plain radiographs can be misleading. |
| Databáze: | OpenAIRE |
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