The use of curved vs. straight instruments in single port access surgery, on standardized box trainer tasks

BACKGROUND: Single-port access (SPA) surgery is a novel surgical technique to create nearly "scarless" surgery. SPA surgery appears to be safe and feasible, but the exposure and handling of tissue may not be optimal. Therefore, the performance of SPA surgery with different instruments used and conventional laparoscopy is compared. METHODS: Fifteen participants (>50 laparoscopic procedures) performed three basic tasks (translocation, clip & cut, and tissue dissection, based on the fundamentals of laparoscopic surgery) in the box trainer in laparoscopy and SPA settings with both (conventional) crossed and curved instruments. All participants completed a questionnaire, which asked their opinion on the use of instruments and preference. RESULTS: Translocation was performed significantly faster in both laparoscopy and SPA crossed than SPA curved (means, 130.3 and 137.7 vs. 170.7 sec; p < 0.001 and p = 0.005). The errors also were less in laparoscopy and SPA crossed (means, 0.9 and 1.2 vs. 1.6), but not significant. The time to complete the dissection was almost equal between laparoscopy and SPA curved settings, but took longer for SPA crossed, although not significantly (148.1 and 150.8 vs. 179.5 sec). The errors only differed significantly between laparoscopy and SPA crossed (means, 0.5 vs. 1.27; p = 0.044). Fourteen participants still favored conventional laparoscopy and one SPA curved. They also thought SPA curved was better than crossed (means, 3.6 vs. 2.47; p = 0.003) and that exposure is superior in curved (means, 3.4 vs. 2.27; p = 0.002). CONCLUSIONS: Although conventional laparoscopy may appear most effective for proper dissection and exposure of tissue, single-port access surgery shows potential. Especially in the tissue dissection task, there is no significant difference in time or errors between conventional laparoscopy and SPA surgery, using specially designed curved instruments. Although the participants favor conventional laparoscopy, this could evolve to a more accepting mind when SPA surgery becomes more available and used in the clinical setting

European association for endoscopic surgery (EAES) consensus statement on single-incision endoscopic surgery

Laparoscopic surgery changed the management of numerous surgical conditions. It was associated with many advantages over open surgery, such as decreased postoperative pain, faster recovery, shorter hospital stay and excellent cosmesis. Since two decades single-incision endoscopic surgery (SIES) was introduced to the surgical community. SIES could possibly result in even better postoperative outcomes than multi-port laparoscopic surgery, especially concerning cosmetic outcomes and pain. However, the single-incision surgical procedure is associated with quite some challenges.This article is freely available via Open Access, click on the Publisher's URL to access the full-text.Publishe

Feasibility of single-port laparoscopy

The aim of this thesis was to examine the feasibility of single-port laparoscopy, in which surgeons use a single access port. All surgical instruments are inserted through this port. The use of specially-designed double-bended instruments was studied. The study results show that these instruments appear to provide benefits when performing precise tasks using a box trainer. Subjects without laparoscopic experience are able to learn the single-port technique just as quickly and accurately as subjects with laparoscopic experience. A survey of 205 randomly-chosen participants shows that there is much enthusiasm for the single-port technique, which can be used more quickly and accurately in robotic laparoscopy. A review on postoperative complications following single-port laparoscopic gallbladder surgery shows that this technique is not associated with an increased risk of complications compared to traditional laparoscopy

A dural craniocervical fistula in a patient with progressive cervical myelopathy

A 47-year-old male patient with a dural craniocervical fistula is presented. One year after a car accident the man was admitted to the emergency department with severe nausea and progressive paralysis of the lower legs. MRI examination of the brain and cervical spine discovered cervical myelopathy and tortuous blood vessels anterior to the pons and cervical medulla. Angiography was performed to provide the final diagnosis of craniocervical fistula. An embolization of the fistula was performed, and all of the patient's complaints disappeared within three days