Removal of non-palpable Implanon® with the aid of a hook-wire marker.

The original inserter of the contraceptive implant, Implanon®, resulted in very deep insertion in some cases, sometimes in close proximity to neurovascular structures. This occasionally resulted in removal complications. We successfully adopted a hook-wire marker method used in breast tumor surgery to safely and simply remove these deep-lying, non-palpable implants.