accuracy and quality of educational videos for elbow physical examination: a search from the earliest year until october 2018

Background : medical students and residents rely increasingly on web - based education . online videos provide unique opportunities to share knowledge . the objective of this study was to investigate the accuracy and quality of instructional videos on the physical examination of the elbow and identify factors influencing educational usefulness . methods : on october 7 , 2018 , a search on youtube , vumedi , orthobullets , and g9md was performed . videos were rated for accuracy and quality by two independent authors using a modified version of a validated scoring system for the nervous and cardiopulmonary system . inter - rater reliability was analysed . results : the 126 included videos were uploaded between june 2007 and february 2018 . twenty - three videos were indicated as useful for educational purposes . accuracy , quality and overall scores were significantly higher for videos from specialized platforms ( vumedi , orthobullets , g6md ) compared to youtube . video accuracy and quality varied widely and were not correlated . number of days online , views , and likes showed no or weak correlation with accuracy and quality . for the overall score , our assessment tool showed excellent inter - rater reliability . conclusion : there is considerable variation in accuracy and quality of currently available online videos on the physical examination of the elbow . we identified 23 educationally useful videos and provided an assessment method for the quality of educational videos . in educational settings , this method may help students to assess video reliability and aid educators in the development of high - quality instructional online content .