The Importance of Lateral Internal Sphincterotomy Incision: Parallel or Vertical

Incision Type for Lateral Internal Sphincterotomy

The purpose of this study is to determine effective incision type for the treatment of chronic anal fissures.

The lateral internal sphincterotomy (LIS) technique is considered the optimal surgical treatment for chronic anal fissures (CAFs); however, questions remain regarding the best technique. The present study investigated whether the type of anoderm incision (vertical or parallel to the anus) affected wound healing, wound-related complications, incontinence and recurrence rates in CAF patients undergoing open LIS.

Inclusion Criteria:

• Patients undergoing open lateral internal sphincterotomy for chronic anal fissure

Exclusion Criteria:

• Younger than 18 and older than 65 years of age, patients who had undergone no previous medical treatment, patients with a history of perianal interventions, patients with inflammatory bowel disease, diabetic patients, patients on steroids and immunosuppressives, patients with collagen tissue diseases, mentally retarded patients and patients with malignant disorders.