PURPOSE: Dynamic graciloplasty can improve continence in patients with severe refractory fecal incontinence, but associated morbidity is high. The purpose of this study was to identify complications associated with dynamic graciloplasty and to characterize their treatment and impact on patient outcome. METHODS: In 121 patients enrolled in a prospective trial of 20 centers and eligible for safety analysis, all complications of dynamic graciloplasty were recorded at the time of their occurrence and followed up until resolution. Severe treatment-related complications were defined as those requiring hospitalization or surgical intervention. RESULTS: In 93 patients, 211 complications occurred. Of these, 89 (42 percent) in 61 patients were classi...