Robotic Sacral Colpopexy Using Autologous Fascia Lata Compared with Mesh

2D and 3D microstructural analysis of the iliotibial tract

The fascial system has gained recognition for its integral role in connecting skin, superficial and deep fasciae, and underlying muscles. However, consensus on its microstructure depending on its topography remains elusive as well as its implications in clinical practices, such as reconstructive surgery and physiotherapy techniques. This study focuses on the iliotibial tract (ITT) implicated in the iliotibial band syndrome. The goal is to describe microstructural characteristics using classical 2D histology and cryogenic contrast-enhanced microcomputed tomography (cryo-CECT) such as the total thickness, number of layers, layer thickness, fibre orientation and tortuosity, according to the specific topography. The total thickness of the ITT varied across topographic regions, with the superior part being on average thicker but non-significantly different from the other regions. The inferior part showed heterogeneity, with the anterior region (AI) being the thinnest and the posterior one (PI) the thickest. The ITT exhibited 1-3 layers, with no significant differences among regions. Most commonly, it consisted of two layers, except for the antero-superior (AS) and antero-middle (AM) regions, which sometimes had only one layer. The posterior regions frequently had 2 or 3 layers, with the PI region having the highest mean (2.7 layers). The intermediate layer was the thickest one, varying from the AI region (0.368 mm ± 0.114) to the PI region (0.640 mm ± 0.305). The superficial layer showed regional variability, with the AS region being the thinnest. The deep layer appeared thinner than the superficial one. Fibre orientation analysis indicated that the intermediate layer mainly consisted of oblique longitudinal fibres, orientated downward and forward, while the superficial and deep layers had transversal or oblique transversal fibres. Cryo-CECT 3D observations confirmed these findings, revealing distinct orientations for different layers. Fibre tortuosity exhibited differences based on orientation. Transversal fibres (>65°) were significantly less tortuous than longitudinal fibres (<25°) and oblique intermediate fibres (25°-65°), aligning with 3D plot observations. This quantitative study highlights various microstructural characteristics of the ITT, offering insights into its regional variations. The analysis accuracy is increased due to the novel technology of cryo-CECT which emerges as a valuable tool for precise assessment of 3D fibre orientation and tortuosity. These findings contribute to a deeper understanding of the ITT structure, useful in clinical practices, such as reconstructive surgery and physiotherapy, and future research endeavours.

To mesh or not mesh "apical prolapse," that is the question!

AIMS

The management of pelvic organ prolapse (POP) involves both nonsurgical and surgical management. Views on best surgical approach for apical prolapse is an evolving field based on recent evidence and events related to transvaginal mesh.

METHODS

At the 97th Annual Meeting of the North Central Section of the American Urological Association (Scottsdale, AZ, USA), this topic was discussed and debated. The following article summarizes the concepts presented that day as well as the interactive debate with three perspectives on apical prolapse surgeries. The authors were asked to support their approach in various scenarios including: extremes of age, prior hysterectomy and intact uterus, desire to avoid mesh, sexual activity, and presence of comorbidities.

RESULTS

Surgical approaches for POP have evolved and is a popular topic for debate, particularly when discussing apical prolapse. Transvaginal native tissue repairs remain the mainstay of POP surgeries; however, transabdominal approaches continue to evolve. Use of interposition material, such as synthetic polypropylene mesh, is the standard when performing an abdominal sacrocolpopexy, however, use of autologous fascia can be considered. Small series have demonstrated the safety and efficacy of autologous fascia-based repairs; however, larger studies with longer follow-up are needed.

CONCLUSIONS

There are a variety of surgical strategies to repair POP. Ultimate decision making on specific surgeries should be determined by patient preference and goals after appropriate counseling on all options.

Harvest of large fascia lata autograft: Outcomes in 108 patients

PURPOSE

Due to the reclassification of transvaginal mesh as a high-risk device, there has been renewed interest in the use of fascia lata in pelvic floor reconstruction. Here we report our experience in 108 patients who underwent large fascia lata harvest for pelvic organ prolapse (POP) repair. Our primary objective was to highlight the postoperative morbidity of the large fascia lata harvest in patients who underwent POP repair using fascia lata autograft.

METHODS

Surgery involved harvesting a fascia lata graft through a small lateral upper thigh incision and was used for either autologous transvaginal POP repair or autologous sacrocolpopexy. To prevent seroma, a temporary Jackson-Pratt drain was intraoperatively placed and a mild compression wrap was applied to the area for 4-6 weeks postoperatively. Patient demographics were obtained preoperatively, while physical exam findings and postoperative outcomes related to the fascia lata harvest were collected at sequential follow up visits.

RESULTS

One-hundred eight patients underwent 111 large fascia lata harvests for either transvaginal or abdominal/robotic POP repair from July 2016 to January 2022. Mean follow-up was 19.6 months (range: 1-65) with 38 patients having 24 months or more of follow-up. Mean Visual Analog Pain (VAP) score was 1 (range: 0-10). Sixteen patients developed asymptomatic thigh bulges, 16 patients developed harvest site seromas (of which 14 resolved), and 59 patients experienced mild, non-bothersome paresthesia near the incision.

CONCLUSION

Large fascia lata harvest offers a robust autograft for transvaginal or transabdominal POP repair with minimal morbidity. Harvest site complications are minor and typically resolve with expectant management. This technique can be safely utilized in patients who desire graft-augmented repair of POP without the use of synthetic mesh, allograft, or xenograft.

Comparison between fascia lata and rectus fascia in treatment of pelvic organ prolapse: a systematic review

OBJECTIVES

The purpose of this systematic review is to present and compare results from studies that have been using autologous tissue for POP repair.

METHODS

Systematic review was done according to the Cochrane Handbook for Systematic Reviews. We aimed to retrieve reports of published and ongoing studies on the efficacy and safety of autologous tissue in vaginal vault prolapse repair. The databases searched were MEDLINE (PubMed interface), Scopus, Cohrane Central Register of Controlled Trials (CENTRAL) and ClinicalTrials.gov.

RESULTS

The success rate varied among studies. In fascia-lata group success rate reports varied from 83 to a 100%, with a median follow-up from 12 to 52 months among studies. Rectus fascia reported success rates from 87 to a 100% with a follow-up of 12 months to longest of 98 months.

CONCLUSION

Autologous tissues show satisfying outcomes in terms of safety and efficacy. Sacrocolpopexy procedure with fascia lata has better outcome in term of treatment of prolapse. Harvesting place on lateral side of buttock has more complications in comparison with rectus fascia but size of the graft can be wider in fascia-lata group.

Cosmetic and functional impact of fascia lata harvest for use in surgery for stress urinary incontinence

INTRODUCTION

There has been increased interest in using autologous tissues since the Food and Drug Administration banned transvaginal mesh for pelvic organ prolapse in 2019. Our study aims to assess patients' perspective of functional and cosmetic impact on the fascia lata harvest site in patients undergoing fascia lata harvest for the treatment of stress urinary incontinence (SUI).

METHODS

This is a prospective survey study of a retrospective cohort of patients who underwent a fascia lata pubovaginal sling between 2017 and 2022. Participants completed a survey regarding the functional and cosmetic outcomes of the harvest site.

RESULTS

Seventy-two patients met the inclusion criteria. Twenty-nine patients completed the survey for a completion rate of 40.3%. For functional symptoms, 24.1% (7/29) of patients reported leg discomfort, 10.3% (3/29) reported leg weakness, 10.3% (3/29) reported a bulge, 17.2% (5/29) reported scar pain, 14.8% (4/27) reported scar numbness, and 17.2% (5/29) reported paresthesia at the scar. For cosmetic outcomes, 72.4% (21/29) reported an excellent or good scar appearance. On the PGI-I, 75.9% (22/29) reported their condition as very much better (48.3%, 14/29) or much better (27.6%, 8/29).

CONCLUSIONS

The majority of patients reported being satisfied with the functional and cosmetic outcomes of their harvest site as well as satisfied with the improvement in their SUI. Less than 25% of patients report harvest site symptoms, including leg weakness, scar bulging, scar pain, scar numbness, or paresthesia in the scar. This is important in the context of appropriate preoperative discussion and counseling regarding fascia lata harvest.

Robot-assisted laparoscopic pelvic floor surgery: Review

Minimally invasive surgical techniques have become more common in pelvic floor reconstructive urogynaecological surgery, specifically, robotic-assisted pelvic floor surgery. Female pelvic floor anatomy is complex, and some repairs require highly experienced surgical skills that can be gained more easily using robotic-assisted surgery. A common application of the robotic platform in urogynaecological surgeries includes sacrocolpopexy, which has become the gold standard approach in the last decade for the correction of apical prolapse. Additional procedures include sacrohysteropexy, sacrocervicopexy, fistula repair, and complex procedures involving the bladder and other pelvic organs. Despite its increasing use and clear benefit in our field, data in the literature and, in particular, randomised controlled trials are sparse. This review provides an update, incorporating recently published literature and our personal experience in that field.

A comparative analysis of the HUGOTM robot-assisted surgery system and the Da Vinci® Xi surgical system for robot-assisted sacrocolpopexy for pelvic organ prolapse treatment

BACKGROUND

We aimed to compare the outcomes of Robot-assisted sacrocolpopexy (RASC) performed using the novel HUGOTM Robot-Assisted Surgery (RAS) System with the Da Vinci® Xi surgical system.

METHODS

Data from 38 women undergoing RASC for a ≥ 2-grade pelvic organ prolapse were collected (2021-2023).

RESULTS

Overall, 23 (60.5%) and 15 (39.5%) procedures were performed using the DaVinci® Xi and the HUGOTM RAS system, respectively. The median total operative time was 123 (IQR:106.5-140.5) minutes for the DaVinci® Xi versus 120 (IQR:120-146) minutes for the HUGOTM RAS cases (p = 0.5). No conversion to open/laparoscopic surgery, perioperative complications, or system failures occurred. No differences were recorded according to day of catheter removal and length of stay.

CONCLUSIONS

This study represents the first worldwide comparison of RASC executed using the HUGOTM RAS versus the Da Vinci® Xi System. Our data suggest that RASC might be performed with both robotic platforms with similar perioperative outcomes.

Clinical, anatomical and perioperative outcomes of abdominal sacral colpopexy using autologous fascia: A systematic review of the literature

OBJECTIVES

Although sacral colpopexy is considered the gold standard for the treatment of advanced apical prolapse, several warnings and restrictions has been delivered to urogynecological surgeons in order to avoid the implants of prosthetics meshes. The purpose of this systematic review is to investigate the role of sacral colpopexy performed with autologous tissue in literature.

METHODS

a systematic review according to PRISMA guidelines was performed in June 2022 through the Medline, Web of Science and Scopus databases. Quality assessment of each article was performed according to Critical Appraisal tool of Oxford center for EBM, LoE according to SORT standards, ROBINS-I tool for methodological assessment in non-randomized trials. From 236 screened records, 7 articles were considered eligible for this systematic review.

RESULTS

Collected data showed objective cure rate ranging from 94.7% to 100% in medium term follow up. Subjective cure rate was specifically investigated in 2 studies with high satisfaction rates. Complication rate ranged from 0 to 36.8%, with 90.1% graded ≤2 according to Clavien-Dindo classification.

CONCLUSIONS

sacral colpopexy with autologous fascia shows satisfying outcomes in terms of safety and efficacy and may be taken in account in particular clinical situations.

What credentials are required for robotic-assisted surgery in reconstructive and functional urology?

Introduction

The increasing popularity of robotic assisted surgery (RAS) as it is implemented in to sub specialities poses many challenges to ensuring standards in quality and safety. The area of Reconstructive and Functional Urology (RFU) has a wide range and largely complex heterogeneous procedures. In recent years RFU has started to incorporate RAS as the primary method to undertake these procedures due to improved vision, dexterity, and access to deep cavities. To ensure patient safety majority of institutions maintain minimal requirements to operate using RAS however across specialities and institutions these greatly vary.

Methods

A narrative review of all the relevant papers known to the author was conducted.

Results

Specific challenges facing RFU is the inability to rely on case numbers as a surrogate means to measure competency as well the ongoing consideration of how to differentiate between surgeons with robotic training and those with the clinical experience specific to RFU.

Conclusion

This review explores current models of training and credentialling and assess how it can be adapted to suggest a standardised guideline for RFU to ensure the highest standards of patient care.

A New Osteogenic Membrane to Enhance Bone Healing: At the Crossroads between the Periosteum, the Induced Membrane, and the Diamond Concept

The lack of viability of massive bone allografts for critical-size bone defect treatment remains a challenge in orthopedic surgery. The literature has reviewed the advantages of a multi-combined treatment with the synergy of an osteoconductive extracellular matrix (ECM), osteogenic stem cells, and growth factors (GFs). Questions are still open about the need for ECM components, the influence of the decellularization process on the latter, the related potential loss of function, and the necessity of using pre-differentiated cells. In order to fill in this gap, a bone allograft surrounded by an osteogenic membrane made of a decellularized collagen matrix from human fascia lata and seeded with periosteal mesenchymal stem cells (PMSCs) was analyzed in terms of de-/recellularization, osteogenic properties, PMSC self-differentiation, and angiogenic potential. While the decellularization processes altered the ECM content differently, the main GF content was decreased in soft tissues but relatively increased in hard bone tissues. The spontaneous osteogenic differentiation was necessarily obtained through contact with a mineralized bone matrix. Trying to deepen the knowledge on the complex matrix-cell interplay could further propel these tissue engineering concepts and lead us to provide the biological elements that allow bone integration in vivo.

Periosteum and fascia lata: Are they so different?

Introduction: The human fascia lata (HFL) is used widely in reconstructive surgery in indications other than fracture repair. The goal of this study was to compare microscopic, molecular, and mechanical properties of HFL and periosteum (HP) from a bone tissue engineering perspective.

Material and Methods: Cadaveric HP and HFL (N = 4 each) microscopic morphology was characterized using histology and immunohistochemistry (IHC), and the extracellular matrix (ECM) ultrastructure assessed by means of scanning electron microscopy (SEM). DNA, collagen, elastin, glycosaminoglycans, major histocompatibility complex Type 1, and bone morphogenetic protein (BMP) contents were quantified. HP (N = 6) and HFL (N = 11) were submitted to stretch tests.

Results: Histology and IHC highlighted similarities (Type I collagen fibers and two-layer organization) but also differences (fiber thickness and compaction and cell type) between both tissues, as confirmed using SEM. The collagen content was statistically higher in HFL than HP (735 vs. 160.2 μg/mg dry weight, respectively, p &lt; 0.0001). On the contrary, DNA content was lower in HFL than HP (404.75 vs. 1,102.2 μg/mg dry weight, respectively, p = 0.0032), as was the immunogenic potential (p = 0.0033). BMP-2 and BMP-7 contents did not differ between both tissues (p = 0.132 and p = 0.699, respectively). HFL supported a significantly higher tension stress than HP.

Conclusion: HP and HFL display morphological differences, despite their similar molecular ECM components. The stronger stretching resistance of HFL can specifically be explained by its higher collagen content. However, HFL contains many fewer cells and is less immunogenic than HP, as latter is rich in periosteal stem cells. In conclusion, HFL is likely suitable to replace HP architecture to confer a guide for bone consolidation, with an absence of osteogenicity. This study could pave the way to a bio-engineered periosteum built from HFL.

Total Autologous Fascia Lata Sacrocolpopexy for Treatment of Pelvic Organ Prolapse: Experience in Thirty-Four Patients

OBJECTIVE

To develop a technique for open/robotic sacrocolpopexy using autologous fascia lata autograft. We report our experience in our first thirty-four patients.

METHODS

The operation utilizes a 4-5-cm x 15-18-cm piece of fascia lata harvested through a 3-4-inch lateral upper thigh incision. The graft is configured into a traditional Y-shaped configuration using CV-2 Goretex sutures and is used to perform sacrocolpopexy. Patients were followed by history and physical, POP-Q scores, and symptoms related to thigh harvest including visual analog pain (VAP) scores. Treatment failure was defined as symptomatic pelvic organ prolapse (POP) involving apical descent.

RESULTS

Autologous fascia lata sacrocolpopexy was performed on 34 patients with a mean age of 62. Mean follow-up was 13 months (range 2-42). Thirteen cases were open sacrocolpopexies, and 21 were robotic. Concurrent procedures included hysterectomy (9), vaginal mesh excision (7), bowel resection and rectopexy (5), and autologous sling (5). POP symptoms resolved in all 34 patients, and there were no treatment failures. The overwhelming majority of harvest site issues were minor and managed expectantly. Mean VAP score at the harvest site was 0.4 (range 0-3). Three patients developed non-bothersome thigh bulges. One patient developed a harvest site seroma. 12 patients reported mild, non-bothersome harvest site paresthesias. No thromboembolic events occurred.

CONCLUSIONS

Autologous fascia lata sacrocolpopexy is an efficacious treatment for patients who desire non-mesh POP repair. Most harvest site issues are minor and typically resolve with expectant management alone. Continued follow-up of this series is ongoing to determine long-term success of this operation.

Robotic sacrocolpopexy in pelvic organ prolapse: a review of current literature

PURPOSE OF REVIEW

Recently, robotic sacrocolpopexy has become the gold standard for treating genital prolapse. Despite this, there is still much interest in this procedure, and many questions remain unanswered. This review focuses on the most critical articles on this issue that have been published in the last 2 years.

RECENT FINDINGS

A summary of 23 articles is provided. There were no differences in total postoperative complications, postoperative stress incontinence, mesh erosion, and the success of the two surgical techniques in long-term investigations. Obesity modestly increases robotic approach difficulty and does not raise the mesh erosion rate or prolapse recurrence rate. Ultra-light and preprepared meshes with alternative fixation techniques can be applied with these procedures. Another emerging trend is alternative robotic approaches and the use of single-port surgery.

SUMMARY

For women with pelvic organ prolapse, especially the elderly and obese, robotic sacrocolpopexy is well tolerated and effective. Despite highly restricted and heterogeneous data, recent investigations have included single incision methods and new mesh/fixation materials. Randomized trials with large sample size and excellent quality are necessary before the practical implementation of new techniques.