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Table 1 Preoperative characteristics and treatment of patients presenting with simple anal fistula

From: Surgery for fistula-in-ano in a specialist colorectal unit: a critical appraisal

   Second surgery Overall
NUMBER 77 (31%)   
FISTULA CLASSIFICATION    
Inter-sphincteric 57 (23%)   
Mid/low trans-sphincteric 20 (8%)   
PRINCIPAL SURGERY    
Single staged fistulotomy 77 (31%) 8 85 (34%)
Postoperative Wexner score