Characteristics of included videos:
After search and application of inclusion and exclusion criteria, a total of 90 YouTube videos were included for analysis. The characteristics of the videos are summarized in Table 2. The most common source was from an academic institution (37.8%) followed by private physicians (35.6%) and patient uploaded content (21.1%). The most common content type was patient education (31.1%), followed by intraoperative videos (28.9%), patient experience videos (23.3%) and finally health care practitioner videos (16.7%). Of the 90 videos that were found, 18 videos were reviewed by all three reviewers and these videos were used to assess the inter-rater reliability and Fleiss-Kappa statistic.