Metal ions levels measurements for early total hip replacement malfunction diagnosis with 'plasma-sprayed ceramic' bearings couple
| Autor: | D. Schiopu, Henri Migaud, N. Krantz, Julien Girard, M. Soenen |
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| Rok vydání: | 2010 |
| Předmět: |
Ceramic bearing
medicine.medical_specialty Bearing (mechanical) Friction business.industry medicine.medical_treatment Metal ions in aqueous solution Total hip replacement Ceramic Prosthesis Chromium atom law.invention Surgery law Plasma sprayed Bearing surface medicine Total hip prosthesis Metal ions level Orthopedics and Sports Medicine business |
| Zdroj: | Orthopaedics & Traumatology: Surgery & Research. 96(1):75-79 |
| ISSN: | 1877-0568 |
| DOI: | 10.1016/j.otsr.2009.09.014 |
| Popis: | Summary Diagnosis of total hip arthroplasty malfunction is usually based on clinical and radiographic findings, while metal ion blood levels monitoring is generally recommended for metal-on-metal bearings hip replacements. However, these measurements may be very useful in detecting anomalies in other bearing surfaces such as plasma sprayed ceramic bearings. We report on the case of a patient with a painful cementless ceramic-on-ceramic total hip prosthesis (Plasmaceram™) for which metal ions blood levels suggested revision surgery in the absence of any demonstrable radiographic anomaly. The high Cobalt and moderate Chromium ion levels in blood suggested a mechanical dysfunction of the bearing couple which revealed to be a severe cam effect requiring revision surgery of both components. Measurement of metal ion blood levels may play a substantial role in the assessment of a total hip prosthesis mechanism when using another bearing surface than metal-on-metal for which this measurement is usually recommended. |
| Databáze: | OpenAIRE |
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