OBJECTIVES: To provide a comprehensive literature review on the various bone-conduction devices (BCDs) available, including bone-anchored hearing aids (BAHAs). METHODS: A comprehensive search strategy was defined to perform a literature review of the data available to date on the different types of marketed BCDs for hearing rehabilitation in patients presenting with conductive hearing loss (CHL), mixed hearing loss (MHL), or single-side deafness (SSD). A search was conducted on December 22^nd, 2015 on the PubMed, EMBASE and Google Scholar databases. Search criteria included patients presenting with CHL, MHL or SSD, and implanted with percutaneous (pBCI) or transcutaneous (tBCI) bone conduction implants. Non-systematic reviews, case reports and clinical studies on <5 patients were excluded. The literature analysis specifically examined the type of implantation (pBCI vs. tBCI), the principle of operation (active device, i.e. direct drive to the skull bone vs. passive device, i.e. skin drive), or by indication. RESULTS: