Concentración de metales séricos (titanio, cromo y cobalto) en el seguimiento de las artroplastias totales de cadera
- V. Seijas Martínez-Echevarría
- R. Jáñez Carrera
- J.L. López Colón
- Tomás Ángel Sanz Gómez
- A. Vergara
- B.A. Cornet Flores
- Carmen Hernando de Larramendi Martínez
ISSN: 1888-6116
Any de publicació: 2012
Volum: 23
Número: 4
Pàgines: 223-227
Tipus: Article
Altres publicacions en: Trauma
Resum
Objective: To analyze the degradation of the metal products contained in hip prosthesis alloys. Patients and method: Atomic absorption measurements were made of the titanium, chromium and cobalt concentrations in the blood of 58 patients with total hip replacement implants made of titanium, chromium and cobalt alloys with or without cementing. The evolution of the serum metal concentrations was assessed based on measurements obtained preoperatively and 6 and 12 months after surgery. Results: A significant increase in serum levels was noted after the start of joint mobilization, though without clinical repercussions. The percentile 95 values of the metal concentration distributions were 27 ìg/l for titanium, 1 ìg/l in the case of chromium, and 1.7 ìg/l for cobalt. Conclusion: The rise in serum metal concentrations could be indicative of poor implant function or excessive wear that in turn could lead to local or disseminated toxicity.