Severe periprosthetic osteolytic lesions after the Ankle Evolutive System total ankle replacement

Autor: Tero Vahlberg, E. Sipola, Ia Kohonen, K. Alanen, Hannu Tiusanen, Helka Koivu
Rok vydání: 2009
Předmět:
Zdroj: The Journal of Bone and Joint Surgery. British volume. :907-914
ISSN: 2044-5377
0301-620X
DOI: 10.1302/0301-620x.91b7.22434
Popis: Between 2002 and 2008, 130 consecutive ankles were replaced with an hydroxyapatite (HA) and titanium-HA-coated Ankle Evolutive System total ankle prosthesis. Plain radiographs were analysed by two independent observers. Osteolytic lesions were classified by their size and location, with cavities > 10 mm in diameter considered to be ‘marked’. CT scanning was undertaken in all patients with marked osteolysis seen on the plain radiographs. Osteolytic lesions were seen on the plain films in 48 (37%) and marked lesions in 27 (21%) ankles. The risk for osteolysis was found to be 3.1 (95% confidence interval 1.6 to 5.9) times higher with implants with Ti-HA porous coating. Care should be taken with ankle arthroplasty until more is known about the reasons for these severe osteolyses.
Databáze: OpenAIRE