Osteolytic cysts with total ankle replacement: Frequency and causes?
Résumé
In this issue, the article 'Etiopathogeneis of osteolytic cysts associated with total ankle arthroplasty, a histological study' by R. van Wijngaarden et al. reported histologic analysis of 32 cyst samples from 22 reoperated TAAs (14 CCI®, 6 Buechel-Pappas®, 1 Salto®, 1 AES® TARs). Having found PE particles in all samples, and metal particles in 16 cysts, the authors concluded that polyethylene particles are not the primary cause of osteolytic cyst. These conclusions are in agreement with Koivu's study and with our histological study, not cited in the article referred to here.