Role of innovative 3D printing models in the management of hepatobiliary malignancies.

Three-dimensional (3D) printing has recently emerged as a new technique in various liver-related surgical fields. There are currently only a few systematic reviews that summarize the evidence of its impact. In order to construct a systematic literature review of the applications and effects of 3D printing in liver surgery， we searched the PubMed， Embase and ScienceDirect databases for relevant titles， according to the PRISMA statement guidelines. We retrieved 162 titles， of which 32 met the inclusion criteria and are reported. The leading application of 3D printing in liver surgery is for preoperative planning. 3D printing techniques seem to be beneficial for preoperative planning and educational tools， despite their cost and time requirements， but this conclusion must be confirmed by additional randomized controlled trials.