Prophylaxis and treatment of acute and chronic postoperative inguinal pain (CPIP)—association of pain with compression neuropathy(†)

Can open inguinal hernia repair (OIHR) and tailored neurectomy (TN) be effective for prophylaxis of chronic postoperative inguinal hernia repair (CPIP) (I) and treatment of CPIP (II)? Patients with symptomatic primary inguinal hernia (I group 1) and secondary hernia with CPIP (II, groups 2–5) were investigated for postoperative complications and nerve damage. About, 98% of patients with OIHR with TN reported preoperative pain (I group 1, n = 388, recurrence rate 1%). There were 73 cases (II) of CPIP after laparoscopic inguinal hernia repair (LIHR) (group 2, n = 22), OIHR (group 3, n = 37), LIHR followed by OIHR/LIHR (group 4, n = 5) and OIHR followed by LIHR/OIHR (group 5, n = 9). The results were as follows: preoperative pain: 33–100%, recurrence rate 0–11% (II, groups 2–5), nerve damage 92–100% and persistent CPIP: n = 1 after trocar perforation of inguinal nerve elsewhere. OIHR is effective to avoid CPIP with compression neuropathy. This is the largest series of histological nerve damage in CPIP.