[Classification of inguinal hernias].

Classification of inguinal hernia is a necessary prerequisite for a reliable analysis of different methods of repair. The underlying categorization is done intraoperatively based on the localization ('M' medial, 'L' lateral, 'F' femoral) and transverse diameter (I = < 1.5 cm, II = 1.5-3.0 cm, III = > 3.0 cm) of the hernial orifice. In cases of combined hernias the diameters of both fascial defects is added up, the hernia is classified according to the part of major importance for the development of recurrences, the medial defect, with the index 'c'. The classification can be applied to open as well as laparoscopic approaches. The diameters of the tip of the index finger or the length of branch of endoscopic scissors (1.5 cm), respectively, serve as standards for measurement.