“…Surface land-marked methods without any use of guidance were used in 32 studies. Of these, the indirect surface land-marked approach was reported in 20 studies 20,36,[39][40][41][42][43][44]50,[53][54][55]57,65,68,69,72,[74][75][76] and the direct suprascapular notch surface land-marked approach was reported in 10 studies. 27,29,30,35,38,51,56,[59][60][61] In one study, the direct spinoglenoid notch method was used 45 and in one study, a combination of both the direct suprascapular notch and indirect method was used.…”