Closing laparoscopic port sites involves two key decisions: whether the fascial layer needs suturing (based on trocar size), and which skin closure technique to use. The European and American Hernia Societies recommend suturing the fascial defect for any trocar site 10 mm or larger, with special attention to umbilical sites and single-incision ports. Smaller 5 mm sites generally need only skin closure.
Which Port Sites Need Fascial Closure
The 10 mm threshold is the critical dividing line. In a prospective study using both clinical exam and ultrasound, only 1 out of 18 port-site hernias (5.5%) occurred at a 5 mm trocar site. The other 94.5% developed at 10 mm sites. Older studies reported trocar-site hernia rates around 0.8 to 2.9%, but more rigorous follow-up with ultrasound screening has found rates closer to 6 to 7%, suggesting many hernias were previously missed.
Umbilical port sites carry the highest risk regardless of trocar size, because the natural weakness of the umbilical ring makes hernia formation more likely. If you’re placing a small trocar, positioning it away from the umbilicus reduces this risk. For any incision 10 mm or larger, close the fascia with a deep suture in addition to whatever skin closure method you choose.
Fascial Closure Technique
Closing fascia through a small skin incision is one of the more frustrating steps in laparoscopic surgery. The defect sits at the bottom of a narrow wound, and blind suturing carries a real risk of incomplete closure or inadvertent injury to bowel or other intraperitoneal structures. This has driven the development of dozens of specialized approaches. One review catalogued 29 distinct methods for fascial closure, grouped into three categories: techniques requiring visualization from inside the abdomen (needing two additional ports), techniques using extracorporeal assistance (one additional port), and techniques performed without any additional ports.
The most straightforward approach is direct hand-sutured closure. After removing the trocar, use Army-Navy or small Richardson retractors to expose the fascial edges. Grasp each side of the fascial defect with Kocher clamps to bring the edges into view. Place a figure-of-eight or simple interrupted suture through the full thickness of the fascia on both sides. An absorbable monofilament suture works well here, as it provides adequate holding strength during healing without requiring later removal.
When direct visualization is difficult, a transcutaneous needle-passer technique can help. Several commercial devices (such as the Carter-Thomason needle-point suture passer) allow you to drive a suture through the fascia on one side of the defect, retrieve it intraperitoneally, and pass it back through the opposite fascial edge. This can be done under laparoscopic visualization through a remaining port, which reduces the risk of catching bowel in the closure. The tradeoff is that most of these devices add cost and operative time.
Skin Closure Options
For port-site skin, subcuticular suturing with absorbable material has become the most common approach. A 4-0 monofilament delayed absorbable suture is a standard choice. Monofilament material is preferred over braided suture in the superficial dermis because it produces less foreign body reaction and lower infection risk when left in place to dissolve.
To perform a running subcuticular closure, insert your needle parallel to the incision line about 2 to 5 mm from one apex of the wound, passing through the epidermis and exiting into the wound interior just medial to the apex. Then take horizontal bites through the dermis on alternating sides of the wound, keeping each pass at a uniform depth and parallel to the skin surface. Each entry point on one side should line up with the exit point on the opposite side. Keep your bites small enough to avoid strangulating tissue, and maintain consistent distance from the wound edge on both sides.
For 5 mm port sites that don’t need fascial repair, a single transcutaneous suture or even adhesive strips can be sufficient. Studies comparing absorbable and nonabsorbable sutures for port-site skin closure have found no meaningful differences in wound infection, dehiscence, or scar quality. The practical advantage of absorbable sutures is eliminating the need for a suture removal visit.
Local Anesthetic at the Port Site
Infiltrating local anesthetic at the port site before or after closure reduces early postoperative pain. A common approach is injecting 0.25% bupivacaine using a 22-gauge needle into the preperitoneal layers at the incision site after trocar removal. For a standard port site, roughly 5 to 10 mL per site is typical, with the total dose adjusted to stay within safe limits based on patient weight. Injecting through all the tissue layers (peritoneum, fascia, subcutaneous tissue) provides more complete coverage than superficial infiltration alone.
Aftercare and Healing Timeline
Cover each closed port site with a sterile adhesive dressing. The bandage stays in place for 24 hours, after which the patient can remove it and shower normally. If you’ve placed adhesive strips (Steri-Strips) or skin glue (Dermabond) over the closure, these peel off on their own within 7 to 10 days. If they’re still adherent after 10 days, they can be gently removed.
Patients should avoid submerging the sites in water (baths, pools) for one to two weeks to reduce infection risk. After showering, patting the area dry with a clean towel is sufficient. No additional bandaging is needed once the initial 24-hour dressing comes off. Absorbable skin sutures dissolve on their own and don’t require a removal appointment.
Preventing Port-Site Hernias
Beyond proper fascial closure, a few technical choices during the procedure itself affect hernia risk. Enlarging a port site to extract a specimen without closing the fascial extension is a common setup for later hernia formation. If you need to extend a 5 mm site to 10 mm or larger for specimen retrieval, that site now needs fascial closure.
Trocar placement matters too. The umbilicus is the most common location for port-site hernias because of the inherent fascial weakness there. When possible, placing the 10 mm or 12 mm camera port slightly off-midline, or using a smaller optic at the umbilicus and reserving the larger trocar for a lateral site, can reduce risk. Lateral port sites have stronger, multilayered abdominal wall musculature that resists herniation more effectively than the midline.
Patient factors also play a role. Obesity, diabetes, and any condition that impairs wound healing increase trocar-site hernia risk. In higher-risk patients, some surgeons close even 5 mm fascial defects at the umbilicus as a precaution, though formal guidelines stop short of making this a universal recommendation.