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Table 2 Characteristic of AOC associated parameters according to STSL and SSN types

From: New parameters describing morphological variations in the suprascapular notch region as potential predictors of suprascapular nerve entrapment

Parameters of area reduction STSL SSN type
Fan-type Band-type IA IB IC II IIIA IIIB IIIC IV V
Number 56 44 2 1 2 11 6 13 59 3 3
amSSN [mm] Mean 31.5 28.2 34.1 47 35.1 28.65 30.18 33.05 29.19 36.5 19.23
SD 5.95 5.65 4.1 - 0.85 5.64 5.42 7.7 4.89 1.8 7.64
p 0.0061 0.0028
AOCSTSL [%] Mean 55.5 58.3 59.7 60.4 59.2 55.3 61.1 52.2 56.7 67.1 64.5
SD 7.9 11.9 21.4 - 2.2 10.8 10.4 8.7 10.1 1.6 1.7
p 0.1797 0.0746
AOCACSL [%]* Mean 4.4 4.6 7.5 6.4 8.6 8.6 8.3 5.2 3.4 - -
SD 7.7 5.9 6.3 - 4.2 7.1 10.9 5.5 6.8 - -
p 0.8707 0.1491
AOC [%] Mean 59.9 62.9 67.3 66.8 67.8 63.9 69.5 57.4 60.1 67.1 64.5
SD 11.6 12.6 27.7 - 2.0 13.9 18.2 11.1 11.8 1.6 1.7
p 0.2331 0.0059
  1. *When ACSL present.
  2. No differences in post-hoc test.