“…A total of 27 studies described different fracture localizations (two RCTs, seven prospective and 18 retrospective studies, 6,425 fractures) [21,22,25,28,29,32,. Four only defined "upper" and "lower" extremity [21,25,42,61], but the rest actually mentioned two or more specific bones. First, upper extremity fractures were compared to lower extremity fractures [21,22,28,29,32,[41][42][43][44][45][46][47][48][49][50][51][52][53].…”