Primary outcome measure
hernia
RECURRENCE
An Patients will be assessed for the primary endpoint at 12 and 24 months after the trial intervention. At these dates, patients will be examined by a clinician blinded for the trial intervention and by a radiologic examination performed by a blinded assessor. Radiologic exams allowed for assessment in the trial are for example sonography, computed tomography (CT) or magnetic resonance imaging (MRI) scans. To reduce radiation exposure, sonography is the preferred imaging method. No radiation-associated imaging should be initiated solely for the purpose of the P.E.L.I.O.N trial. However, results of radiation-associated imaging like CT scans that are performed for other indications (e.g. oncological follow-up) can be used in the trial. In this case, an additional ultrasound of the abdominal wall is not necessary. In case of conflicting results between clinical and radiologic exams, the radiologic imaging is decisive to increase sensitivity [Possible outcomes of clinical and radiological hernia assessment and outcome decisions in the P.E.L.I.O.N. trialFor patients who are unable or unwilling to attend the follow-up visits, a telephone follow-up is incorporated. As the patient-reported outcome questionnaire developed by Tastaldi et al. (Hernia Recurrence Inventory, HRI) was modified and will be used in all patients [