“…In agreement with our results, Vogt et al (2021) and Iliadis et al (2021a) also reported corrosion after metallurgical analysis of retrieved STRYDE nails. While reports of implant failures in limb-lengthening nails are rare (Frost et al 2021), the related magnetically controlled spinal growing rod devices (MAGEC, NuVasive, San Diego, CA, USA) have been highly investigated in recent years (Tang et al 2019, Akbarnia and Mundis 2019, Agarwal et al 2020, Tsirikos and Roberts 2020, Wei et al 2020, Rushton et al 2021. In these spinal implants, wear debris causing metallosis, i.e., discoloration of the surrounding soft tissue, originally drew surgeons' attention to the matter.…”