“…The characteristics of the studies included are shown in Table 1. There were 5 RCTs [14,20,21,25,28] (level of evidence: 2b) [29]; 8 retrospective studies [15,16,18,19,22,24,26,27] and 2 prospective studies (level of evidence: 2b-3b) [17,23]. As for surgical procedures, 10 studies compared SSLF with ASC [15,16,18,[20][21][22][23][24][25]28] [14,17,19,26], and 1 compared ASC, LSC, and SSLF [27].…”