Three-dimensional modelling as a novel interactive tool for preoperative planning for complex perianal fistulas in Crohn's disease.

Aim: The aim of this study is to demonstrate the added value of three-dimensional (3D) reconstruction models and artificial intelligence for preoperative planning in complex perianal Crohn's disease. MRI is the gold standard for diagnosis of complex perianal fistulas and abscess due to its high sensitivity, but it lacks high specificity values. This creates the need for better diagnostic models such as 3D image processing and reconstruction (3D-IPR) with artificial intelligence (AI) algorithms.

Application of 3D-reconstruction and artificial intelligence for complete mesocolic excision and D3 lymphadenectomy in colon cancer.

Mathematical algorithms 3D-reconstruction techniques and artificial intelligence are a current line of innovation in colorectal surgical oncology. The objective of this study is to show the initial experience of a 3D image processing and reconstruction system to perform complete mesocolic excision and D3-lymphadenectomy in colon cancer. It is applied to a splenic flexure neoplasm and in a right colon cancer with suspected retroperitoneal infiltration.

Moving the concept associated to laparoscopic intracorporeal rectus aponeuroplasty (LIRA) to lateral hernia.

The surgical repair of lateral hernias is considered a challenge. Laparoscopic intracorporeal rectus aponeuroplasty (LIRA) has been described as a minimally invasive technique for primary incisional ventral hernias of the midline, especially for M2 to M4 ventral hernias but the indications of the concept associated to LIRA are beginning to expand to other complex locations. The aim of this video is to show the surgical steps for lateral hernias where the concept associated to LIRA is followed to repair this type of hernias.

Expanding indication of laparoscopic intracorporeal rectus aponeuroplasty (LIRA) to suprapubic area: LIRA & TAPE.

Laparoscopic intracorporeal rectus aponeuroplasty (LIRA) is a minimally invasive technique described to repair M2-M4 primary and incisional hernias. Defects below this area (M5 - Suprapubic area) could be treated using the concept associated to LIRA, expanding the indication of this technique in combination with a transabdominal partially extraperitoneal (TAPE) repair. The aim of this video is to show the surgical steps in the combination of LIRA & TAPE for M2-M5 ventral hernias.