OBJECTIVE: The transinguinal preperitoneal (TIPP) technique is an open approach to groin hernia repair with posteriorly positioned mesh supposed to reduce recurrence rates. However, transabdominal preperitoneal (TAPP) and totally extraperitoneal (TEP) techniques have similar mesh positioning with the advantages of minimally invasive surgery (MIS). Hence, we performed a systematic review and meta-analysis comparing TIPP and MIS for groin hernia repair.
METHODS: Cochrane, Embase, Scopus, Scielo, and PubMed were systematically searched for studies comparing TIPP and MIS techniques for groin hernia repair. Outcomes assessed were recurrence, chronic pain, surgical site infection (SSI), seroma, and hematoma. We performed a subgroup analysis of TAPP and TEP techniques separately. Statistical analysis was performed with R Studio.
RESULTS: 81 studies were screened and 19 were thoroughly reviewed. Six studies were included, of which two compared TIPP with TEP technique, two compared TIPP with TAPP, and two compared TIPP with both TEP and TAPP techniques. We found lower recurrence rates for the TEP technique compared to TIPP (0.38% versus 1.19%; RR 2.68; 95% CI 1.01 to 7.11; P = 0.04). Also, we found lower seroma rates for TIPP group on the overall analysis (RR 0.21; P = 0.002). We did not find statistically significant differences regarding overall recurrence (RR 1.6; P = 0.19), chronic pain (RR 1.53; P = 0.2), SSI (RR 2.51; P = 0.47), and hematoma (RR 1.29; P = 0.76) between MIS and TIPP. No statistically significant differences were found in the subgroup analysis of TAPP technique for all the outcomes.
CONCLUSIONS: Our systematic review and meta-analysis found no differences between TIPP and MIS approaches in the overall analysis of recurrence, SSI, and chronic pain rates. Further research is needed to analyze individual techniques and draw a more precise conclusion on this subject.
UNASSIGNED: ID CRD42024530107, April 8, 2024.

OBJECTIVE: Annually, over 20 million patients worldwide undergo inguinal hernia repair procedures. Surgery stands as the recommended treatment, however, a consensus on the optimal method is lacking. This study aims to conduct an updated systematic review and meta-analysis to compare the risk of chronic inguinal pain and recurrence between laparo-endoscopic mesh repair (TAPP and TEP) versus Lichtenstein repair for inguinal hernia.
METHODS: Searches were conducted in Ovid MEDLINE, PubMed, EBSCO, Cochrane, and Google Scholar. Inclusion criteria encompassed randomized controlled trials (RCTs) involving adults, published in English and Spanish, comparing surgical outcomes among the Lichtenstein open technique, TAPP, and/or TEP. Adherence to the PRISMA guidelines was maintained in the methodology, and the CASP tool was employed to assess the quality of the articles. Statistical analysis involved mean [± standard deviation (SD)], Odds Ratio (OR), and Confidence Interval (CI).
RESULTS: Eight RCTs encompassing 1,469 patients randomized to Lichtenstein repair (n = 755) and laparo-endoscopic repair (n = 714) were included. Laparo-endoscopic repair was associated with a lower likelihood of chronic inguinal pain compared to Lichtenstein repair (OR = 0.28, 95% CI [0.30-0.56], p = 0.0001). There were no significant differences in recurrence rates between the laparo-endoscopic and the Lichtenstein group (OR = 1.03, 95% CI [0.57-1.86], p = 0.92).
CONCLUSIONS: This systematic review and meta-analysis demonstrate that laparo-endoscopic hernia surgery leads to a lower incidence of chronic inguinal pain compared to Lichtenstein repair, while maintaining similar rates of recurrence.

OBJECTIVE: Laparoscopic groin hernia repair has evolved and gained popularity and laparoscopic transabdominal preperitoneal (TAPP) procedure provides an opportunity to evaluate the peritoneal cavity and both inguinal areas without the need for additional dissection. There is still a paucity of evidence to support TAPP repair in the emergency setting. In this systematic review, we aim to evaluate the feasibility and safety of TAPP repair for incarcerated and strangulated groin hernias.
METHODS: PRISMA guidelines were followed for literature search and established inclusion and exclusion criteria were applied. Data were extracted and analyzed for the outcomes of interest.
RESULTS: Overall, 8 studies were included in the review, comprising 316 patients. Patients characteristics and outcomes were limitedly reported. Only 3 cases of conversion to open approach were reported and 2 recurrences were diagnosed. Postoperative complications are inconsistently reported but mostly refer to minor complications. There were no mortality cases. Visceral resections were performed in 25 cases due to ischemia, mostly extracorporeally.
CONCLUSIONS: Laparoscopy is a game changer and TAPP approach is a feasible, safe, and effective technique for the emergent repair of groin hernias. Further studies and prospective randomized data are needed to establish its role in the emergent groin hernia management.

BACKGROUND: There is an ongoing debate about the efficacy and postoperative outcomes of transabdominal preperitoneal (TAPP) and totally extraperitoneal (TEP) inguinal hernia repair. Our aim is to assess the surgical outcomes of each technique, focusing predominantly on postoperative components to determine if establishing a policy to advocate for a single technique is warranted.
METHODS: A literary review of randomized control trials and cohort studies to delineate recurrent concerns or points of contention was undertaken. A retrospective, comparative analysis was performed of TEP and TAPP primary inguinal hernia repairs performed by surgeons with more than five-year experience with their preferred technique over a three-year period (January 2020 to December 2022) at three separate institutions.
RESULTS: A total of 279 applicable cases were reviewed of which 38% (n=106) were performed as TEP and 62% (n=173) performed as TAPP. The demographic of the cohort was heavily skewed towards the male population as expected; however, there were no differences between each subgroup. TEP hernia repair showed a significantly improved postoperative pain score at one and 24 hours, respectively (1.67 ± 0.45, p < 0.05 and 1.97 ± 0.31, p < 0.05). No discernible difference was noted in the categories of length of hospital stay, recurrence rate, and overall patient satisfaction.
CONCLUSIONS: The study showed overall improved results using the TEP inguinal hernia repair technique; however, no statistically significant results were demonstrated in the long term to advocate for changes to pre-existing surgeon preferences.

To investigate the differences in hernia recurrence and chronic postoperative inguinal pain (CPIP) in randomized, controlled trials comparing fixation and non-fixation of the mesh in laparoscopic transabdominal preperitoneal (TAPP) inguinal hernia repair.
A multi-database systematic search was conducted for randomized, controlled trials comparing fixation versus non-fixation of the mesh in TAPP inguinal hernia repair. All eligible papers were assessed for risk of bias using the revised Cochrane risk of bias tool for randomized trials (RoB 2.0). Quality of evidence was evaluated using the GRADE system. Meta-analyses were performed regarding recurrence and CPIP using RevMan.
Seven prospective, randomized controlled trials were included. Laparoscopic TAPP inguinal hernia repair was performed in 1732 patients with 737 procedures performed without fixation and 995 procedures with fixation of the mesh. Despite all trials being RCTs, the trials were limited by substantial bias and the quality of evidence was low regarding hernia recurrence and very low regarding CPIP. Pooled estimates from meta-analyses were an OR of 2.80 (95% CI 0.61-12.77) for hernia recurrence and a mean difference in visual analogue scale (VAS) of 0.17 (95% CI 0.90-1.24) for CPIP, respectively.
The current evidence is very uncertain and mesh fixation may have little to no effect regarding hernia recurrence and chronic postoperative inguinal pain in patients operated with TAPP inguinal hernia repair.

The most recent international guideline on inguinal hernia management recommends a short convalescence after repair. However, surgeons\' recommendations may vary. The objective of this study was to give an overview of the current convalescence recommendations in the literature subdivided on the Lichtenstein and laparoscopic inguinal hernia repairs.
In this systematic review, three databases were searched in August 2021 to identify studies on inguinal hernia repairs with a statement about postoperative convalescence recommendations. The outcome was convalescence recommendations subdivided on daily activities, light work, heavy lifting, and sport.
In total, 91 studies fulfilled the eligibility criteria, and 50 and 58 studies reported about convalescence recommendations after Lichtenstein and laparoscopic repairs, respectively. Patients were instructed with a wide range of convalescence recommendations. A total of 34 Lichtenstein studies and 35 laparoscopic studies recommended resumption of daily activities as soon as possible. Following Lichtenstein repairs, the patients were instructed to resume light work after median 0 days (interquartile range (IQR) 0-0), heavy lifting after 42 days (IQR 14-42), and sport after 7 days (IQR 0-29). Following laparoscopic procedures, the patients were instructed to resume light work after median 0 days (IQR 0-0), heavy lifting after 14 days (IQR 10-28), and sport after 12 days (IQR 7-23).
This study revealed a broad spectrum of convalescence recommendations depending on activity level following inguinal hernia repair, which likely reflects a lack of high-quality evidence within this field.

BACKGROUND: The impact of laparoscopic inguinal hernia repair (IHR) on chronic groin pain (CGP) prevalence, risk and daily activities compared to open IHR is still unclear.
METHODS: A meta-analysis of randomised controlled trials comparing CGP rates in laparoscopic and open IHR was performed.
RESULTS: 22 trials were included. CGP prevalence decreases significantly 1-2 years post-op and reaches rates as low as 4.69% (laparoscopic) and 6.91% (open) at >5 years. There is a significantly lower risk of CGP following totally extraperitoneal (TEP) than open mesh repair at all follow-up periods (p < 0.05) except for >5 years (p = 0.32). The same trend is not seen when compared to open non-mesh repair or for transabdominal pre-peritoneal repair (TAPP). There is no difference between techniques when CGP is described as moderate and/or affecting daily activities (p = 0.08).
CONCLUSIONS: CGP rates continue to decrease at >5 years follow up. TEP consistently results in a reduction in CGP rates compared to open mesh repair however, this is not functionally significant.

The choice of how to repair inguinal hernias in adolescents has historically been a matter of experience and differed between pediatric surgeons who traditionally performed a high ligation of the sac and general surgeons who typically perform a repair using mesh. This up-to-date review thoroughly examines the subject and discusses the suitability of both types of repairs in this unique age group.
A 20-year Pub Med search was performed for the following terms: adolescent hernia repair including reports of mesh hernia repair in adolescents and postoperative complications including chronic inguinal pain and recurrences.
The evidence in the literature suggests that while there appears to be no difference between the two types of repairs with regards to recurrence and complications, changes in the pelvic floor physiology in adolescents suggest that a selective, individualized approach can be recommended depending on the size and nature of the presenting pathology.
A selective approach to the inguinal hernia in adolescent patients based on the size of the defect appears justified.

BACKGROUND: Laparoscopic transabdominal preperitoneal patch (TAPP) is now commonly used in the repair of inguinal hernia. Barbed suture can be a fast and effective method of peritoneal closure. We report two rare cases of small bowel obstruction and perforation caused by barbed suture after TAPP.
METHODS: Patient 1 is a 45-year-old man who underwent laparoscopic repair of a right inguinal hernia. Barbed suture was used to close the peritoneal defect. At 47 days after the operation, he was diagnosed with a small bowel obstruction caused by an elongated tail of the barbed suture. Emergency laparoscopic exploration was performed for removal of the embedded suture and detorsion of the volvulus. The second patient is a 50-year-old man who was admitted with a small bowel perforation one week after TAPP herniorrhaphy. Emergency exploration revealed that the tail of the barbed suture had pierced the small intestine, causing a tiny perforation. After cutting and releasing the redundant tail of the barbed suture, the serosal and muscular defect was closed with 2 absorbable single-knot sutures. Both patients have recovered well. Finally, we searched the PubMed database and reviewed the literature on the effectiveness and safety of barbed suture for TAPP.
CONCLUSIONS: Surgeons should understand the characteristics of barbed suture and master the technique of peritoneum closure during TAPP in order to reduce the risk of bowel obstruction and perforation.

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