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Table 4 Postoperative retear (SUGAYA’s classification)

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

SUGAYA Group AS (N = 59) Group PS (N = 21) Group APE (N = 22) Total
Type I 28 (45.8%) 8 (38%) 6 (27.3%)  
Type II 13 (22%) 2 (9.5%) 3 (13.6%)  
Type III 8 (13.6%) 2 (9.5%) 6 (27.3%)  
Type IV 8 (13.6%) 4 (19%) 3 (13.6%) 15
Type V 2 (3.4%) 5 (23.8%) 4 (18.2%) 11
Retear 10 (16.9%) 9 (42.9%) 7 (31.8%) 26 (25.5%)