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Table 3 Preoperative structural outcome in three groups

From: Risk factors for retear of large/massive rotator cuff tears after arthroscopic surgery: an analysis of tearing patterns

  Group AS (N = 59) Group PS (N = 21) Group API: (N = 22)
Oizumi classification
 Grade O 19 (32.2%) 6(28.6%) 3 (13.6%)
 Grade I 30 (50.8%) 7 (33.3%) 8 (36.4%)
 Grade II 8 (13.6%) 7 (33.3%) 4(18.2%)
 Grade III 2 (3.4%) 1 (4.8%) 5 (22.7%)
 Grade IV 0 (0%) 0 (0%) 2 (9.1%)
Retraction (mm) 29.1 ± 6.2 31.2 ± 10.4 37.1 ± 8.7
Width (mm) 34.7 ± 6.0 37.2 ± 10.4 45.0 + 9.8
Muscle atrophy (%)
 SSC 246.5 ± 83.5 220.3 ± 67.4 252.1 ± 82.4
 SSP 76.2 ± 19.8 78.9 ± 18.6 71.3 ± 16
 ISP/TM 220.4 ± 51.9 183.4 ± 38.5 187.4 ± 54.8
Fatty degeneration (%)
 SSC 5.35 ± 8.25 3.5 ± 5 20 6.0 ± 7.23
 SSP 7.84 ± 10.24 11.42 ± 10.15 12.2 ± 9.7
 ISP/IM 3.35 ± 4.92 8.52 ± 9.23 6.05 ± 5.2
Goutallier classification SSC
 Stage 0 24 (40.7%) 9 (42.9%) 6 (27.3%)
 Stage 1 26 (44.1%) 8 (38.1%) 5 (22.7%)
 Stage 2 7 (11.9%) 4 (19.0%) 9 (40.9%)
 Stage 3 2 (3.4%) 0 (0%) 1 (4.5%)
 Stage 4 0 (0%) 0 (0%) 1 (4.5%)
Goutallier classification SSP
 Stage 0 13 (22%) 2 (9.5%) 2 (9.0%)
 Stage 1 16 (27.1%) 5 (23.8%) 5 (22.7%)
 Stage 2 21 (35.6%) 11 (52.4%) 10 (45.5%)
 Stage 3 7 (11.9%) 2 (9.5%) 1 (4.5%)
 Stage 4 2 (3.4%) 1 (4.8%) 4 (18.2%)
Goutallier classification ISP/TM
 Stage 0 28 (47.5%) 5 (22.7%) 5 (22.7%)
 Stage 1 26 (44.1%) 6 (27.3) 9 (40.9%)
 Stage 2 3 (5.0%) 7 (31.8%) 5 (22.7%)
 Stage 3 2 (3.4%) 3 (13.6%) 1 (4.5%)
 Stage 4 0 (0%) 0 (0%) 2 (9.0%)
GFDI 1.02 ± 0.62 1.36 + 0.5 1.29 ± 0.5
  1. SSC subscapularis, SSP supraspinatus, ISP/TM infraspinatus/teres minor, GFDI global fatty degeneration index