The development of an intestinal volvulus after an appendectomy is an exceptional and extremely serious complication. A 12-year-old female patient underwent surgery for uncomplicated acute appendicitis. The surgery and postoperative period were uneventful. Two and a half months later, she presented with an acute abdomen. Radiological studies confirmed a midgut volvulus and identified a free surgical staple close to it. A midgut volvulus secondary to a bridle in the mesenteric root was identified during surgery. Adhesiolysis and manual detorsion were performed, with adequate recovery of intestinal tissue perfusion. The free staple was not found during surgery. The patient evolved favorably and is asymptomatic and under follow-up. Although it is difficult to demonstrate a causal association, several post-appendectomy intestinal volvulus reported cases (including ours) seem related to free surgical staples in the peritoneal cavity acting as a mesenteric or intestinal anchor point. Thorough cavity cleaning after surgery, avoiding free staples, is essential to prevent this complication. A targeted computed tomography review can help identify free staples in the abdominal cavity.