Basic Laparoscopic Skills Training Is Equally Effective Using 2D Compared to 3D Visualization: A Randomized Controlled Trial

Three-dimensional vision versus two-dimensional vision on laparoscopic performance of trainee surgeons: a systematic review and meta-analysis

Laparoscopic surgery underwent great improvements during the last few years. This review aims to compare the performance of Trainee Surgeons using 2D versus 3D/4 K laparoscopy. A systematic review of the literature was done on Pubmed, Embase, Cochrane's Library and Scopus. The following words and key phrases have been searched: "Two-dimensional vision", "Three-dimensional vision", "2D and 3D laparoscopy", "Trainee surgeons". This systematic review was reported according to the PRISMA statement 2020. PROSPERO registration No. CRD42022328045. Twenty-two randomized controlled trials (RCTs) and two observational studies were included in the systematic review. Two trials were carried out in a clinical setting, and twenty-two trials were performed in a simulated setting. In studies involving the use of a box trainer, the number of errors in the 2D laparoscopic group was significantly higher than in the 3D laparoscopic group during the performance of FLS skill tasks: peg transfer (MD: -0.82; 95% CI - 1.17 to - 0.47; p < 0.00001), cutting (MD: - 1.09; 95% CI - 1.50 to - 0.69 p < 0.00001), suturing (MD: - 0.48; 95% CI - 0.83 to - 0.13 p = 0.007), However, in clinical studies, there was no significant difference in the time taken for laparoscopic total hysterectomy (MD: 8.71; 95% CI - 13.55 to 30.98; p = 0.44) and vaginal cuff closure (MD: 2.00; 95% CI - 0.72 to - 4.72; p = 0.15) between 2D group and 3D group. 3D laparoscopy facilitates learning for novice surgeons and shows improvements in their laparoscopic performance.

The Future in Standards of Care for Gynecologic Laparoscopic Surgery to Improve Training and Education

Standards of care offer doctors and patients the confidence that an established quality, evidence-based, care is provided, and represent a tool for optimal responding to the population’s needs. It is expected that they will increasingly express a multimodal relationship with gynecologic laparoscopy. Laparoscopy is, now, a standard procedure in operative gynecology, standards are embedded in many laparoscopic procedures, standardization of the skills/competency assessment has been progressively developed, and the proof of competency in laparoscopy may become a standard of care. A continuous development of surgical education includes standard equipment (that may bring value for future advance), standardized training, testing (and performance) assessment, educational process and outcome monitoring/evaluation, patients’ care, and protection, etc. Standards of care and training have a reciprocally sustaining relationship, as training is an essential component of standards of care while care is provided at higher standards after a structured training and as credentialing/certification reunites the two. It is envisaged that through development and implementation, the European wide standards of care in laparoscopic surgery (in close harmonization with personalized medicine) would lead to effective delivery of better clinical services and provide excellent training and education.

Assessment of 2D and 3D imaging for patients undergoing laparoscopic bariatric surgery

&lt;b&gt;Aim:&lt;/b&gt; The aim of this study is to compare the association of 2D and 3D imagery with technical performance and operative time during laparoscopic surgery. &lt;/br&gt;&lt;/br&gt; &lt;b&gt; Material and methods:&lt;/b&gt; A systematic review of the literature was conducted through an online search in databases such as PubMed, Cochrane, Embase and CNKI in order to identify articles published in English and Chinese from 2010 to 2020 that compared the clinical results of 2D and 3D laparoscopic gastric bypass surgery. &lt;/br&gt;&lt;/br&gt; &lt;b&gt; Results:&lt;/b&gt; A total of 50 articles were included in the qualitative analysis. Out of these, 5 articles that met the inclusion criteria were selected for analysis, according to which 3D laparoscopic surgery had a shorter surgery time than 2D laparoscopic surgery. &lt;/br&gt;&lt;/br&gt; &lt;b&gt;Conclusions:&lt;/b&gt; Compared with a 2D laparoscopic system, a 3D laparoscopic system can significantly reduce the operative time and errors and can increase the comfort of the surgeons performing laparoscopic gastric bypass surgery.

Clinical Experiences of 3-Dimensional Biportal Endoscopic Spine Surgery for Lumbar Degenerative Disease

BACKGROUND

The lack of stereoscopic vision in endoscopic spine surgery may lead to a risk of neural or vascular injury during endoscopic surgery. Three-dimensional (3D) endoscopy has not yet been attempted in the field of spinal endoscopic surgery.

OBJECTIVE

To present the technique, clinical efficacy, and safety of the 3D biportal endoscopic approach for the treatment of lumbar degenerative disease.

METHODS

We attempted 3D biportal endoscopic surgery for lumbar degenerative disease in a series of patients. Clinical outcomes and complications were evaluated postoperatively using a short questionnaire about 3D biportal endoscopic spine surgery that solicited respondents' opinions on the advantages and disadvantages of 3D biportal endoscopic surgery compared to the conventional 2D biportal endoscopic approach.

RESULTS

We performed 3D biportal endoscopic spine surgery in 38 patients with lumbar degenerative disease. Optimal neural decompression was revealed by postoperative magnetic resonance imaging in all enrolled patients. The 3D endoscopic vision clearly demonstrated the surgical anatomy starting with the exposure of ligamentum flavum, dura, and nerve root, and 3D endoscopy precisely depicted pathologic lesions such as bony osteophytes and ruptured disc herniation. There were no major complications including neural injury or durotomy.

CONCLUSION

The 3D endoscope may be able to distinguish between normal structures and lesions. The stereognosis and depth sensation of 3D biportal endoscopic spinal surgery might have a favorable impact on the safety of patients during endoscopic spine surgery.

Merged virtual reality teaching of the fundamentals of laparoscopic surgery: a randomized controlled trial

Background

The COVID-19 pandemic challenges our ability to provide surgical education, as our ability to gather and train together has been restricted due to safety concerns. However, the importance of quality surgical education has remained. High-fidelity simulation platforms have been developed that merge virtual reality video streams to allow for remote instruction and collaboration. This study sought to validate the use of a merged virtual reality (MVR) platform for the instruction and assessment of the fundamentals of laparoscopic surgery (FLS) skills.

Methods

This was a prospective randomized controlled non-inferiority study. Thirty participants were randomized between three groups: The standard group received in-person instruction and expert feedback, the experimental group received identical training via the MVR platform, and the control group practiced on their own, but received no feedback. All participants were pre-tested for baseline performance at the beginning of the study. Change in performance was evaluated immediately after training and one month later for retention. Ordinary one-way analysis of variance was used to evaluate the effects of time, group, and time-on-group.

Results

The pre-test confirmed baseline homogeneity between the groups. MVR was non-inferior to standard in-person training for total FLS times on either the post-test (p = 0.632) or the retention test (p = 0.829). Performance was also identical between MVR and standard training groups for each of the individual FLS tasks. Each group improved significantly in nearly all tasks after practice; however, the standard and MVR training groups both improved significantly more than controls for the ligating loop, extracorporeal suturing, intracorporeal suturing, and total FLS task training but did not reach statistical significance for peg transfer and pattern cut tasks.

Conclusion

This randomized, controlled trial has demonstrated the use of an MVR platform as non-inferior to in-person instruction for the FLS program, forming the foundation for future work on remote instruction and collaboration.

Supplementary Information

The online version contains supplementary material available at 10.1007/s00464-021-08939-4.

Innovations in Urologic Surgical Training

PURPOSE OF REVIEW

This review aims to summarize innovations in urologic surgical training in the past 5 years.

RECENT FINDINGS

Many assessment tools have been developed to objectively evaluate surgical skills and provide structured feedback to urologic trainees. A variety of simulation modalities (i.e., virtual/augmented reality, dry-lab, animal, and cadaver) have been utilized to facilitate the acquisition of surgical skills outside the high-stakes operating room environment. Three-dimensional printing has been used to create high-fidelity, immersive dry-lab models at a reasonable cost. Non-technical skills such as teamwork and decision-making have gained more attention. Structured surgical video review has been shown to improve surgical skills not only for trainees but also for qualified surgeons. Research and development in urologic surgical training has been active in the past 5 years. Despite these advances, there is still an unfulfilled need for a standardized surgical training program covering both technical and non-technical skills.

Three-dimensional laparoscopic Roux-en-Y gastric bypass with totally hand-sewn anastomoses for morbid obesity. A single center experience

PURPOSE

To assess the impact of three-dimensional (3D) vision use on operative time (OT) in laparoscopic Roux-en-Y gastric bypass (LRYGB) with hand-sewn anastomoses.

METHODS

We analyzed a prospectively collected database of patients who underwent LRYGB. We included all patients operated on with either 2D or 3D vision. Demographics and clinical characteristics, operative time, hospital stay and 30-day postoperative complications were collected for all patients and analyzed.

RESULTS

During the study time, out of 143 patients who underwent LRYGB for morbid obesity, 111 were considered eligible. Seventy-eight patients were operated with 2D vision and 33 patients with 3D vision. Demographics and clinical characteristics were not different among groups. Mean OT was 203±51 and 167±32 minutes in the 2D and 3D groups respectively (p<0.001). Multivariate analyses showed that increasing age and BMI were independently related to prolonged OT, while 3D vision (OR 6.675, 95% CI 2.380-24.752, p<0.001) was strongly associated with shorter OT.

CONCLUSIONS

The use of 3D vision in LRYGB significantly reduced the OT, though intra- and postoperative complication rates and the length of hospital stay were not affected. Despite its limitations, our study supports the value of 3D vision laparoscopy in bariatric surgery.