The aim of this study was to assess the incidence of intraoperative failure of the FasT-fix (Smith & Nephew, Andover, USA) device for all-inside meniscal repair and to investigate any underlying factors. Searching retrospectively the hospital databases and patient files, we collected 78 cases, totalling 61 successes and 17 failures. Of a total of 190 FasT-fix anchors, 22 failed (a calculated incidence of 11.6%), either by anchorage slippage through the capsule during tightening or by failure of anchor deployment.