109 The Impact of Extended Reality on Surgery: A Scoping Review

Abstract

Abstract Aim Extended reality (XR) is a spectrum of technologies encompassing augmented reality (AR), virtual reality (VR), augmented virtuality (AV), mixed reality (MR). This scoping review maps out current utilisation and future prospects of XR-assisted surgery. Method A systematic search of PubMed, Scopus, Embase was performed. Primary studies describing surgical procedures on human subjects, dentistry, anaesthetic procedures for surgery were included. Non-surgical, rehabilitation, bedside, veterinary procedures, robotic surgery were excluded. Studies were classified into preoperative planning, intraoperative navigation/guidance, patient pain, patient anxiety, surgical training, surgeon confidence. Results 213 studies were included for analysis. Thirty-six studies on pre-operative planning noted VR improved surgeon's understanding of anatomical sites, leading to reduced operating time and surgical trauma. Fifty-nine studies on intra-operative planning noted AR headsets highlight ‘negative structures’, reducing chance of accidental incision. Fourteen studies on patients’ pain found VR-induced meditative state resulted in less analgesics for patient comfort. Twelve studies on patient anxiety found VR failed to change patients’ physiological parameters such as arterial blood pressure, cortisol levels, heart rate. Sixty-eight studies explored surgical training, with VR being most cost-effective. Thirteen studies documented increased surgeon confidence. Conclusions XR-assisted surgery's growth is fuelled by hardware and software innovations. Training and pre-operative planning are mostly achieved by VR; intraoperative guidance is mostly supplemented with AR. The other sections of XR spectrum, AV and MR, are underexplored. Working time restrictions during surgical training, COVID-19's impact on limiting physical presence and increasing complexity of surgical procedures means that XR-assisted surgery may assume a greater role in coming decades.