Laparoscopic Total Extraperitoneal Repair Research Articles

EP.TH.961Meta-analysis of Spinal Anaesthesia Versus General Anaesthesia During Laparoscopic Total Extraperitoneal Repair of Inguinal Hernia

Abstract Objectives To evaluate comparative outcomes of spinal anaesthesia (SA) and general anaesthesia (GA) during laparoscopic total extraperitoneal (TEP) repair of inguinal hernia. Methods We systematically searched MEDLINE; EMBASE; CINAHL; CENTRAL, and bibliographic reference lists. Post-operative pain assessed by visual analogue scale (VAS), individual and overall perioperative morbidity, procedure time and time taken to normal activities, were the outcome parameters. Combined overall effect sizes were calculated using fixed-effect or random-effects models. Results We identified 5 studies enrolling 1,518 patients (2,134 hernia) evaluating outcomes of laparoscopic TEP repair under SA (n = 1,277 patients, 1,877 hernia) or GA (n = 241 patients, 257 hernia). SA was associated with significantly lower post-operative pain assessed by VAS at 12 hours (MD: - 0.32, P < 0.0001) and shorter time to normal activities (MD: -0.30, P = 0.002) compared to GA. However, it significantly increased risk of urinary retention (OR:4.02, P = 0.01), hypotension (OR:3.97, P = 0.004), headache (OR:7.65, P = 0.003), and procedure time (MD: 3.82, P = 0.004) There was no significant difference in VAS at 24 hours (MD:0.06, P = 0.34), seroma (OR:1.54, P = 0.26), wound infection (OR:1.03, P = 0.94), and vomiting (OR:0.84, P = 0.66) between two groups. There was a non-significant decrease in overall morbidity in favour GA (OR:1.84, P = 0.17) which became significant following sensitivity analysis (OR:2.59, P = 0.01). Conclusions Although TEP inguinal hernia repair under SA may reduce pain in early postoperative period, it seems to be associated with increased postoperative morbidity and longer procedure time. It may be an appropriate anaesthetic modality in selected patients who are considered high risk for GA. Higher level of evidence is needed.

Comparison of the impact of open and laparoscopic inguinal hernia operations on male sexual function and pain during sexual activity

In the current study, we aimed to compare sexual function and pain during the sexual activity of men who underwent surgery with the open or laparoscopic total extraperitoneal hernia repair techniques. Patients were randomised into two groups according to the technique used during the operation: the Lichtenstein hernia repair open technique (n=63) and the laparoscopic total extraperitoneal repair technique (n=57). In both groups, postoperative sexual function score was significantly improved compared with the preoperative period (p<.001 for both), but the change was higher in the laparoscopy group (6.8±3.7) compared with the open group (4.3±4.4) (p<.001). In both groups, postoperative pain during sexual activity score was significantly decreased compared with the preoperative period (p=.001 for the open group and p<.001 for the laparoscopy group), with the amount of decrease being higher in the laparoscopy group (1.8±0.9) compared with the other (1.1±1.4) (p=.002). This study showed that both hernia repair techniques had a positive impact on sexual function and pain during sexual activity. The improvement in sexual parameters and pain during sexual intercourse was better in the laparoscopy group.

Assessment of early outcome in laparoscopic totally extraperitoneal inguinal hernia repair using lightweight mesh

Background: Laparoscopic surgery is dominating in the field of hernia. The search for the ideal prosthetic biomaterial has been a longstanding issue with debate over simple versus composite biomaterial and lightweight versus heavyweight meshes. This study was done to evaluate the early outcome of lightweight mesh in laparoscopic totally extraperitoneal (TEP) repair.Methods: This prospective observational study was done for a period of 16 months. On the basis of selection criteria patient underwent laparoscopic TEP repair using light weight mesh, early outcomes were evaluated in terms of immediate postoperative pain (analysed via visual analog scale) and chronic groin pain (analysed by visual analogue scale and graded according to Cunningham), patients were also evaluated for operation time, intraoperative bleeding, seroma, stiffness or numbness around groin, or any other complications.Results: There was no intraoperative bleeding among any of the patients. Immediate post-operative pain assessed by visual analogue scale 20% scored one in the visual analogue scale in post-operative day 1. None of the patients were having any complications (like stiffness or numbness in groin or thigh and any other complication) during post-surgery follow up. Only one patient reported mild chronic groin pain at the end of 3 months after surgery.Conclusions: The short term results of laparoscopic TEP repair for inguinal hernia using light weight mesh are quite encouraging. We can conclude that light weigh mesh is fulfilling important role in successful hernia repair as it is associated with very less morbidity.

Laparoscopic totally extraperitoneal hernia repair performed by surgical trainees: overcoming the learning curve.

Surgical trainees struggle to obtain experience in laparoscopic inguinal hernia repair (LIHR) due to a perceived steep learning curve. The purpose of this study was to compare outcomes in totally extraperitoneal (TEP) repair performed by surgical consultants and trainees under supervision as part of a standardised training regimen to assess the safety of residency training in this technique. A retrospective review of patients managed by TEP repair by either a consultant or a supervised trainee was performed. Demographic, perioperative and postoperative data were collected and compared. All trainees underwent a standardised approach to teaching TEP repair. Trainees performed 133 procedures and consultants performed 121 procedures. Estimated blood loss was minimal in both cohorts. A significant difference was noted in mean operating time between consultants and trainees (33 vs. 50 min). However, it was also observed that the trainee mean operating time reduced significantly with experience (from 61 to 42 min). No statistically significant difference was demonstrated in postoperative complications, recurrence rate or length of stay. All trainees achieved the ability to complete a laparoscopic TEP repair under unscrubbed consultant supervision during a 1-year placement. With senior supervision and in the presence of a structured training regimen, trainees can safely and effectively perform LIHR, progressing to performing the procedure under unscrubbed consultant supervision. This is valuable information that can serve to inform the structure and direction of surgical training programmes as the ability to offer LIHR is increasingly becoming an expectation of consultant surgeons.

Determination of the efficacy of ultrasound-guided bilateral transversus abdominis plane (US-TAP) block in laparoscopic total extraperitoneal (TEP) repair of unilateral hernia surgeries: A randomized controlled trial.

Background and Aims:Bilateral ultrasound-guided transversus abdominis plane (US-TAP) block has been successfully used to provide analgesia for most lower abdominal procedures. Our aim was to determine the efficacy of US-TAP block with levobupivacaine in laparoscopic total extraperitoneal (TEP) repair of unilateral hernia surgeries under general anaesthesia (GA) as compared to no block.Material and Methods:It is prospective randomised controlled study done in a tertiary care centre in South-East Asia. After obtaining Institute Ethics Committee approval and consent, 60 patients of ASA I-II aged between 18 to 80 years were randomized into two groups.After receiving GA, Group TAP - received bilateral US-TAP block with levobupivacaine 0.25% 0.3ml kg-1 on either side whereas, the control group did not receive any block.The time taken to first request for rescue analgesic (T Rescue) by the patient and the Numeric Rating Scale (NRS) at that time point were noted and tramadol 50mg i.v. was administered, followed by 50mg i.m. PRN for 24 h from the time of extubation. The 24 h analgesic requirement was noted in mg kg-1.Results:Results were analysed using SPSS 16 and P < 0.05 was considered significant. T Rescue was significantly longer in the TAP Group (P = 0.02) with lower NRS at time points 24 h (P = 0.02) and 12 h (P = 0.004). Postoperative nausea and vomiting were significantly less in TAP Group (P < 0.001).Conclusion:Bilateral US-TAP block provided better analgesia and side effect profile as compared to no block when administered in laparoscopic TEP repair of hernia surgeries.

Outcome of Laparoscopic Total Extra Peritoneal Versus Lichtenstein Repair For Treatment of Inguinal Hernia: A Randomized Control Trial

&#x0D; &#x0D; &#x0D; &#x0D; OBJECTIVES: &#x0D; To compare the outcome of laparoscopic total extra peritoneal (TEP) repair versus Lichtenstein repair (LR) of inguinal hernia in terms of post-operative pain, hematoma, seroma, wound infection and early recurrence.&#x0D; METHODOLOGY:&#x0D; This randomized control trial was conducted at Surgical Unit III, General Hospital Lahore, Pakistan during the period June 2017 to May 2018. Male patients aged up to 50 years diagnosed with unilateral, reducible primary inguinal hernia were randomized into two groups, Group A (TEP) and Group B (LR), with 38 patients each. Data was collected prospectively on structured proforma. Patients were regularly followed up for one year for early postoperative complications. Statistical analysis was done using SPSS version 26.&#x0D; RESULTS:&#x0D; Out of 76 patients, mean age for TEP was 36.72±4.50 years and LR was 34.42±6.8 years. No significant difference was found in both the groups in terms of short-term postoperative complications. LR group had comparatively high rate of postoperative complications; hematoma formation (n=3/38; 7.9%), wound infection (n=3/38; 7.9%) and seroma formation (n=1/38; 2.6%). Postoperative pain with Visual Analogue Score in TEP group on the 1st day, 3rd day, 7th day and 1 month follow up was less as compared to LR group.&#x0D; CONCLUSION:&#x0D; The present study concludes that TEP is better than LR in inguinal hernia in terms of less postoperative pain after 1 month. However, no statistical difference was found in seroma and hematoma formation and wound infection.&#x0D; &#x0D; &#x0D; &#x0D; &#x0D;

Comparison of General, Epidural, and Spinal Anesthesia in Laparoscopic TEP (Total Extraperitoneal Repair) for Inguinal Hernia.

Laparoscopic total extraperitoneal repair (TEP) is one of the most preferred minimally invasive methods for inguinal hernia repair. In our study, we aimed to compare the advantages and disadvantages of general anesthesia (GA), spinal anesthesia (SA), and epidural anesthesia (EA) for TEP operations. This is a retrospective study involving 221 patients who underwent TEP surgery for inguinal hernia between January 2018 and July 2020. Patients were divided into 3 groups as GA (n=77), SA (n=70), and EA (n=74). Demographic data of the patients, duration of anesthesia and surgery, perioperative and postoperative complications, postoperative pain, anatomical delineation, hospital stay and quality of life were evaluated. Anesthesia time was the longest in the EA group (23.1±2.32 min) and significantly prolonged the operation time (P<0.001). When the visual analog scale scores were compared, it was observed that the patients in the GA group felt significantly more pain (P<0.001). While the rates of hypotension and headache were higher in regional anesthesia (P<0.001 and P<0.002), there was no significant difference in urinary retention, postoperative nausea/vomiting, and shoulder pain (P=0.274, 0.262, and 0.314, respectively). SA and EA groups were found to be superior compared with the GA group in terms of patient satisfaction (P<0.001). Regional anesthesia (SA and EA) can be safely performed in TEP surgeries, gives results similar to the anatomical delineation satisfactory and complication rates of GA, and results in less postoperative pain.

O38: TACKING VERSUS NO TACKING IN LAPAROSCOPIC TOTALLY EXTRAPERITONEAL REPAIR OF PRIMARY INGUINAL HERNIA - A SYSTEMATIC REVIEW AND META-ANALYSIS

Abstract Introduction The necessity of mesh fixation in laparoscopic totally extraperitoneal (TEP) inguinal hernia repair remains controversial. We performed a systematic review and meta-analysis to compare the effectiveness of mesh tacking versus no tacking in laparoscopic TEP repair for primary inguinal hernia. Materials and Methods PubMed, EMBASE and Cochrane databases were searched for relevant articles from inception until November 2019. All studies that compared tacking versus no tacking in TEP repairs for inguinal herniae were included. Recurrent and femoral herniae were excluded from the current analysis. The primary outcome measure was recurrence, while secondary outcomes included postoperative pain scores at discharge and at 1 month, mean operative time, length of stay and seroma rates. Random effects models were used to calculate pooled effect size estimates. Result Eight randomised controlled trials were included capturing 557 patients and 715 inguinal herniae. On random effects analysis, there were no significant differences between tacking and no tacking in terms of recurrence (OR 0.94, 95% CI=0.10 to 9.28, p=0.96), postoperative pain scores on discharge (Mean difference 0.82, 95% CI=-0.35 to 2.00, p=0.17) or at 1 month (Mean difference 0.53, 95% CI=-0.75 to 1.82, p=0.41), mean operative time (Mean difference 1.58 mins, 95% CI=-0.22 to 3.37, p=0.09), seroma (OR=0.70, 95% CI=0.28 to 1.74, p=0.44) or length of stay (Mean difference 0.11 days, 95% CI=-0.04 to 0.25, p=0.14). Conclusion Mesh tacking in laparoscopic TEP repair for primary inguinal herniae does not translate into improved postoperative outcomes and may be omitted. Take-home message Mesh tacking in laparoscopic TEP repair for primary inguinal herniae does not translate into improved postoperative outcomes and may be omitted.

Comparison of Outcomes of Open Tension-free Mesh Repair and Totally Extraperitoneal Laparoscopic Repair of Inguinoscrotal Hernias

Background: This study aimed to determine the differences in postoperative complications experienced by patients with inguinoscrotal hernia after laparoscopic versus open repair, and the association of risk factors to development of postoperative complications.&#x0D; Methods: We retrospectively reviewed the charts of all patients with inguinoscrotal hernias who had either Lichtenstein repair or totally extraperitoneal laparoscopic (TEP) repair from January 2014 to December 2017.&#x0D; Results: The study was performed on evaluable data that could be extracted for 49 patients: 14 were offered TEP repair and 35 Lichtenstein repairs. There was no statistical difference in the mean operative time and mean time taken to return to normal activities between the two groups. The length of hospital stay was one day for both groups. Two patients from the TEP repair group and one patient from the Lichtenstein repair group developed recurrence. Three patients from the TEP group and one patient from the Lichtenstein repair group developed chronic groin pain. One patient from the totally extraperitoneal laparoscopic repair group developed a seroma.&#x0D; Conclusion: Our study demonstrated a trend towards better postoperative outcomes in the Lichtenstein repair group than in the TEP group.&#x0D; Keywords: Open tension-free mesh repair, Totally extraperitoneal laparoscopic repair, Inguinoscrotal hernias

Iatrogenic Pseudoaneurysm after Laparoscopic Bilateral Inguinal Hernia Surgery: Treatment with Endovascular Coil Embolization

Although laparoscopic interventions have provided significant achievements in hernia surgery, they may cause complications such as pain, hematoma, intestinal injuries, testicular complications, and sometimes arterial pseudoaneurysms. Arterial pseudoaneurysms are a very rare complication of laparoscopic inguinal hernia surgery. Pseudoaneurysms have serious various causes such as inflammation, trauma, and iatrogenic injury. The patient was diagnosed with bilateral inguinal hernia and a laparoscopic total extra-peritoneal repair was completed. Pelvic bleeding developed on the first postoperative day. A pseudoaneurysm that was 80x70x50 cm was detected in an abdominal computer tomography angiography. In this case because of having high rate morbidity and mortality of open surgery, we selected endovascular angioembolization instead of open surgery in the treatment of pseudoaneurysm which occurred after laparoscopic inguinal hernia surgery

Correlation of Laparoscopic Total Extraperitoneal Repair Results With Surgical Experience in İnguinal Hernias

Correlation of Laparoscopic Total Extraperitoneal Repair Results With Surgical Experience in İnguinal Hernias

Surgical Strategy for Contralateral Groin Management in Patients Scheduled for Unilateral Inguinal Hernia Repair: An International Web-Based Surveymonkey® Questionnaire: Strategy for Contralateral Groin Management during Inguinal Hernia Repair.

A contralateral occult inguinal hernia is frequently observed in patients planned for a unilateral laparoscopic inguinal hernia repair. Surgical strategy for contralateral groin management in patients scheduled for an endo-laparoscopic unilateral inguinal hernia repair is controversial and based on questionable evidence. This study aimed to gather international opinion concerning the surgical strategy for the contralateral asymptomatic side when no hernia or lipoma is clinically evident at the preoperative examination or anamnesis. An international Internet-based questionnaire was sent to all the members of the European Hernia Society, the Americas Hernia Society, and the Asia Pacific Hernia Society. The clinical scenario for responders was a patient with a unilateral symptomatic inguinal hernia planned for endo-laparoscopic repair with no preoperative symptoms/lump on the contralateral side. A total of 640 surgeons replied (response rate = 26%), of whom 506 were included for analysis. Most surgeons had performed > 300 repairs. The preferred surgical technique was evenly distributed between laparoscopic total extraperitoneal repair and laparoscopic transabdominal preperitoneal repair. In total, 54% preferred to implant a prophylactic mesh on the contralateral side when an occult hernia was found, 47% when a lipoma was found, and 6% when no occult hernia/lipoma was identified. Mesh implementation was preferred by half of the endo-laparoscopic hernia surgeons for a contralateral occult hernia and/or lipoma. Although not supported by strong evidence, mesh implantation on the asymptomatic contralateral side might be cost-effective and perhaps beneficial in the long term but could be offset by increased risk of chronic pain and sexual dysfunction.

Endoscopic Techniques in the Treatment of Inguinal Hernias

The review is devoted to the treatment methods of inguinal hernia. Inguinal hernia repair is one of the most common operations in the world and is performed on more than 20 million patients per year. Recurrence rates of inguinal hernias after different types of surgical interventions range from 10 to 15%. The use of synthetic materials reduced the rates of hernia recurrence on average to 1-5%. Currently there are traditional tissue-based techniques, open tension-free mesh hernia repair, and laparoscopic mesh hernioplasty. Nowadays tension-free repair with synthetic mesh is a technique of choice for inguinal hernia repair. The emphasis has been placed on endoscopic methods of inguinal hernia prosthetic repair. According to the literature, laparoscopic repair is associated with low rates of wound infection and fewer haematomas, which leads to early resumption of everyday activities compared with Lichtenstein hernia repair. The paper discusses two standardized endoscopic methods for inguinal hernia treatment, namely laparoscopic transabdominal preperitoneal patch (TAPP) and total extraperitoneal (TEP) repair. Analysis of the literature has shown that criteria of necessity and method of mesh fixation during TAPP procedure were not completely identified. However, a number of researches have demonstrated that TAPP technique without mesh fixation proved to be a safe procedure which can be used in most patients with unilateral and bilateral inguinal hernia showing no increase in postoperative complications and low recurrence rates.

Laparoscopic Total Extraperitoneal Groin Hernia Repair in Females: Comparison of Outcomes Between Preservation or Division of the Uterine Round Ligament.

Background: Laparoscopic repair has been recommended as the method-of-choice of groin hernia repair among women. Whether the round ligament of uterus should be divided to facilitate mesh placement remains controversial. This study aims to review the outcomes of laparoscopic total extraperitoneal (TEP) groin hernia repair in women and to evaluate the impact of division of round ligament. Methods: Consecutive female patients with inguinal or femoral hernias who underwent elective laparoscopic TEP repair at a single institution from 2006 to 2017 were included for retrospective analysis. Primary outcomes were postoperative pain, genital prolapse, and recurrence. Outcomes of patients who had the round ligament divided were further compared with those with round ligament preserved and multivariable adjusted analysis was performed. Results: Sixty-eight patients with a total of 77 TEP repairs were included in the 12-year study period. The mean age was 45 ± 16 years old. Incidental femoral hernia was identified in 4 patients (5.9%). There was 1 (1.3%) recurrence upon mean follow-up of 42.9 ± 37.3 months. The round ligament was divided in 67.5% of patients, and upon multivariable adjusted analysis, there were no statistically significant differences in outcomes in terms of chronic pain (odds ratio [OR] = 2.210, P = .357), paresthesia (OR = 0.241, P = .149), and genital prolapse (OR = 0.327, P = .415) when compared with patients with preserved round ligament. Conclusion: Laparoscopic groin hernia repair in women is associated with low recurrence. Division of round ligament intraoperatively facilitates mesh placement and has minimal impact on clinical outcomes.

Case of proximal small bowel obstruction: is it the motility or the chewing?

An otherwise healthy 80‐year‐old gentleman presents with 1‐day history of generalized abdominal pain and vomiting associated with abdominal distention and bowels not opening for 3 days. He has not had any previous abdominal surgery apart from an elective laparoscopic total extraperitoneal repair of bilateral inguinal hernia. On examination, he was haemodynamically stable with a distended abdomen but without any peritonism. Computed tomography of the abdomen/pelvis demonstrated evidence of small bowel obstruction (SBO) at the mid‐jejunum with a transition point in the left upper abdomen (Fig. 1). He was initially managed conservatively with nasogastric tube decompression, intravenous fluids and a trial of gastrografin. Unfortunately, he failed to improve and underwent exploratory laparoscopy. Intraoperatively, the small bowel was followed from the terminal ileum proximally, finding a hard luminal mass in the mid‐jejunum. The duodeno‐jejunal junction was identified and the small bowel was again followed distally and the luminal mass was again identified. With this single transition point identified, the segment of jejunum was eviscerated and examined. A limited small bowel resection was performed to deliver this mobile hard pigmented intraluminal mass measuring 3 × 4 cm (Fig. 2). Histopathology confirmed normal small bowel with ghosted plant cell walls throughout the firm mass consistent with food bezoar (Fig. 3). The patient made an uneventful recovery and was discharged on day 6

AB103. Tacking versus no tacking in laparoscopic totally extraperitoneal repair of primary inguinal hernia: a systematic review and meta-analysis of randomised controlled trials

Background: The necessity of mesh fixation in laparoscopic totally extraperitoneal (TEP) inguinal hernia repair remains controversial. We performed a systematic review and meta-analysis to compare the effectiveness of mesh tacking versus no tacking in laparoscopic TEP repair for primary inguinal hernia.

Open preperitoneal repair in a patient of large spigelian hernia

Introduction: The spigelian hernia is very uncommonly diagnosed variety of anterior abdominal wall hernia. The radiological imaging with ultrasound and computed tomography (CT) scan is diagnostic. Case Report: A 50-year-old female presented with a painless, self-reducible mass in the right lower abdomen. The size of mass was 14 × 11 cm. The clinical diagnosis of a large spigelian hernia was confirmed by ultrasound and CT scan. The patient was operated under general anesthesia and open preperitoneal mesh repair was done. Conclusion: For repair of large size spigelian hernia, reinforcement with polypropylene mesh is recommended because of high recurrence rate of tissue repair. Open preperitoneal repair is a preferred technique over laparoscopic total extraperitoneal repair.

Does laparoscopic hernia repair affect the vascularity of testis?

Context:Laparoscopic hernia repair, despite its safety and effectivity is related to some drawbacks. Testicular complications are uncommon but serious among them. Testicular atrophy occurs in 0% to 2% of patients after hernioplasty.Aim:In this study, we tried to evaluate the effects of laparoscopic total extraperitoneal (TEP) repair on testicular blood flow in Indian population by comparing the testicular perfusion in preoperative and postoperative status.Settings and Design:A prospective study.Subjects and Methods:A prospective study was conducted among adult male patients having an uncomplicated inguinal hernia. Preoperative and postoperative CDUS evaluation of testicular blood flow was done for each patient.Statistical Analysis Used:Data were analyzed using the SPSS (SPSS, Chicago, IL, USA) software program.Results:The resistive indexes of testicular, capsular, and intratesticular arteries of the operated and nonoperated side were similar preoperatively and did not differ ominously postoperatively.Conclusion:Laparoscopic hernia surgery does not have any significant effect on testicular blood supply and can be advocated safely without any added risk of testicular atrophy.

A cheap and effective hand-made balloon trocar for laparoscopic total extraperitoneal hernia repair (TEP)

A cheap and effective hand-made balloon trocar for laparoscopic total extraperitoneal hernia repair (TEP)

A randomized controlled study comparing the outcome of laparoscopic totally extra peritoneal repair versus Desarda repair in the management of inguinal hernia

Background: Desarda repair is a technique of a tissue based tension free mesh free inguinal hernia repair, shown to be comparable to the standard Lichtenstein repair. Till date, no study has been done comparing Desarda repair with laparoscopic total extra peritoneal repair (TEP), hence this study was planned.Methods: The prospective randomized controlled study was done over a period of 18 months, and included a total of 50 patients, randomly allocated into 2 groups: TEP (group 1) and Desarda repair (group 2), 25 in each group, and followed up for a period of 1 year.Results: Chronic inguinodynia, including groin stiffness showed a statistically significant difference between the 2 groups (p=0.02). Foreign body sensation (16% in TEP group and none in Desarda group) and recurrence rate (12% in TEP group and none in Desarda group) did not show a significant difference. The operating time in the Desarda group (66.8±20.35 minutes) was significantly less than TEP group (78.6±11.86 minutes), with p&lt;0.01. There was no significant difference in terms of post-operative pain scores (VAS scores) at five time points, post-operative analgesic requirement, hospital stay and return to normal daily routine activity or work and post-operative complications. Desarda repair was also found to be much more economical.Conclusions: The present study establishes the potential benefits of Desarda repair over TEP in terms of shorter duration of surgery, lesser incidence of chronic inguinodynia and lesser cost of the procedure, along with the avoidance of mesh related complications.