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Introduction The proportion of recurrent repairs in the total collective of inguinal hernia repairs among men is 11.3–14.3% and among women 7.0–7.4%. The rate of re-recurrences is reported to be 2.9–9.2%. To date, no case series has been published on second and ≥ third recurrences and their treatment outcomes. Only case reports are available. Materials and methods In an analysis of data from the Herniamed Registry the perioperative and 1-year follow-up outcomes of 16,206 distinct patients who had undergone first recurrent (n = 14,172; 87.4%), second recurrent (n = 1,583; 9.8%) or ≥ third recurrent (n = 451; 2.8%) inguinal hernia repair between September 1, 2009 and July 1, 2017 were compared. Results The intraoperative complication rate for all recurrent repairs was between 1–2%. In the postoperative complications a continuous increase was observed (first recurrence: 3.97% vs second recurrence: 5.75% vs ≥ third recurrence 8.65%; p p = 0.020). Likewise, the re-recurrence rate rose significantly (first recurrence: 1.95% vs second recurrence: 2.72% vs ≥ third recurrence 3.77; p = 0.005). Similarly, the rate of pain requiring treatment rose highly significantly with an increasing number of recurrences (first recurrence: 5.21% vs second recurrence: 6.70% vs ≥ third recurrence 10.86; p = Conclusion The repair of re-recurrences in inguinal hernia is associated with increasingly more unfavorable outcomes. For the first recurrence the guidelines should definitely be noted. For a second and ≥ third recurrence diagnostic laparoscopy may help to select the best possible surgical technique.

Rectus abdominis diastasis (RAD) ± concomitant hernia is a complex hernia entity of growing significance in everyday clinical practice. Due to a multitude of described surgical techniques, a so far missing universally accepted classification and hardly existing comparative studies, there are no clear recommendations in guidelines. Therefore, "RAD ± concomitant hernia" will be documented as a separate hernia entity in the Herniamed Registry in the future. For this purpose, an appropriate case report form will be developed on the basis of the existing literature.A systematic search of the available literature was performed in March 2021 using Medline, PubMed, Google Scholar, Scopus, Embase, Springer Link, and the Cochrane Library. 93 publications were identified as relevant for this topic.In total 45 different surgical techniques for the repair of RAD ± concomitant hernia were identified in the surgical literature. RAD ± concomitant hernia is predominantly repaired by plastic but also by general surgeons. Classification of RAD ± concomitant hernia is based on a proposal of the German Hernia Society and the International Endohernia Society. Surgical techniques are summarized as groups subject to certain aspects: Techniques with abdominoplasty, open techniques, mini-less-open and endoscopic sublay techniques, mini-less-open and endoscopic subcutaneous/preaponeurotic techniques and laparoscopic techniques. Additional data impacting the outcome are also recorded as is the case for other hernia entities. Despite the complexity of this topic, documentation of RAD ± concomitant hernia has not proved to be any more cumbersome than for any of the other hernia entities when using this classification.Using the case report form described here, the complex hernia entity RAD ± concomitant hernia can be recorded in a registry for proper analysis of comparative treatment options.

How best to treat a small ( 2 cm) umbilical hernia continues to be the subject of controversial debate. The recently published guidelines for treatment of umbilical hernias from the European Hernia Society and Americas Hernia Society recommend open mesh repair for defects ≥ 1 cm. Since the quality of evidence is limited for hernias with defect sizes smaller than 1 cm, suture repair can be considered. To date, little is known about the potential influencing factors on the outcome in small ( 2 cm) umbilical hernia repair. This multivariable analysis of data from the Herniamed Registry now aims to assess these factors.The data of patients with primary elective umbilical hernia repair and defect size 2 cm entered into the Herniamed Registry from September 1, 2009 to December 31, 2018 were analyzed to assess through multivariable analysis all confirmatory pre-defined potential influencing factors on the primary outcome criteria intraoperative and postoperative complications, general complications, complication-related reoperations, recurrence rate and rates of pain at rest, pain on exertion and chronic pain requiring treatment at 1-year follow-up.31,965 patients (60%) met the inclusion criteria. The proportion of suture repairs was 78.6% (n = 25,119), of open mesh repairs 15.2% (n = 4853), and of laparoscopic mesh repairs 6.2% (n = 1993). Compared with open mesh repair, suture repair had a highly significantly unfavorable association with the recurrence rate (OR = 1.956 [1.463; 2.614]; p 0.001). Female gender also had an unfavorable relation to the recurrence rate (OR = 1.644 [1.385; 1.952]; p 0.001). Compared with open mesh repair, open suture repair had a highly significantly favorable association with the rate of postoperative complications (OR = 0.583 [0.484; 0.702]; p 0.001) and complication-related reoperations (OR = 0.567 [0.397; 0.810]; p = 0.002).While laparoscopic IPOM showed a favorable relationship with the postoperative complications and complication-related reoperations, it demonstrated an unfavorable association with the intraoperative complications, general complications, recurrence rate and pain rates.Suture repair continues to be used for 78% of umbilical hernias with a defect 2 cm. While suture repair has a favorable influence on the rates of postoperative complications and complication-related reoperations, it has a higher risk of recurrence. Female gender also has an unfavorable influence on the recurrence rate. Laparoscopic IPOM appears to be indicated only in settings of obesity (BMI ≥ 30).

The use of drains continues to be a controversial topic in surgery. In a review of that topic for incisional hernia it was not possible to find sufficient evidence of the need for a drain. Likewise, for inguinal hernia surgery the data available are insufficient. In a multivariable analysis of data from the Herniamed Registry for 98,321 patients with primary elective unilateral inguinal hernia repair in men, the role of a drain was investigated. A drain was used in 24.7% (n = 24,287/98,321) of patients. These patients were on average older, had higher BMI, longer operating time and received a smaller mesh. Drains were also used more often for patients with higher ASA score, risk factors, larger defects and scrotal hernia localization as well as for Lichtenstein, TEP and suture repair. The use of drains was highly significantly associated with intra- and postoperative complications as well as with complication-related reoperations. Hence, drains are used selectively in inguinal hernia repair for patients at higher risk of perioperative complications. Despite the use of drains, the outcome in this risk group is less favorable. It remains unclear if drains prevent further complications in high-risk patients. Drains are used selectively in high-risk men with primary elective unilateral inguinal hernia repair. Drains are associated with intra- and postoperative complications rates and complication-related reoperation rate. Drains can serve as an indicator for early detection of complications.

There are hardly any studies on the outcome of scrotal compared with medial and lateral inguinal hernias. Therefore, this present multivariable analysis of data from the Herniamed Registry compared the outcome of scrotal vs. lateral vs. medial inguinal hernias and explored the relationship between hernia localization and outcomes.Included in the analysis were all primary elective unilateral inguinal hernias in men with scrotal, lateral or medial defect localization whose details had been entered into the Herniamed Registry by 712 participating institutions (status February 1, 2019). The relation of the hernia localization with the outcome parameters adjusted for pre-defined confounding patient- and procedure-related variables was analyzed via multivariable binary logistic models.Details of 98,321 patients were thus available for multivariable analysis. These related to 65,932 (67.1%) lateral, 29,697 (30.2%) medial and 2,710 (2.7%) scrotal inguinal hernias. Scrotal hernias were associated with higher patient age, higher BMI, higher ASA score, larger defect, more risk factors and more frequent use of Lichtenstein repair. On the other hand, scrotal hernias were associated less commonly with preoperative pain. Multivariable analysis revealed that scrotal hernias had a highly significantly unfavorable association with postoperative complications, complication-related reoperations and general complications. But scrotal hernias had a highly significantly favorable relation with the pain rates at 1-year follow-up. Medial hernias were the hernia type most often related with recurrence and also had an unfavorable association with the pain rates at 1-year follow-up.Scrotal inguinal hernias demonstrated a very unfavorable relation with the postoperative complication rate, the rate of complication-related reoperations and the rate of general complications. But a very favorable association with chronic pain rates was identified at 1-year follow-up. Medial inguinal hernia had an unfavorable relation with the recurrence and pain rates.

In 2014, the International Endohernia Society (IEHS) published the first international "Guidelines for laparoscopic treatment of ventral and incisional abdominal wall hernias." Guidelines reflect the currently best available evidence in diagnostics and therapy and give recommendations to help surgeons to standardize their techniques and to improve their results. However, science is a dynamic field which is continuously developing. Therefore, guidelines require regular updates to keep pace with the evolving literature.For the development of the original guidelines, all relevant literature published up to year 2012 was analyzed using the ranking of the Oxford Centre for Evidence-Based Medicine. For the present update, all of the previous authors were asked to evaluate the literature published during the recent years from 2012 to 2017 and revise their statements and recommendations given in the initial guidelines accordingly. In two Consensus Conferences (October 2017 Beijing, March 2018 Cologne), the updates were presented, discussed, and confirmed. To avoid redundancy, only new statements or recommendations are included in this paper. Therefore, for full understanding both of the guidelines, the original and the current, must be read. In addition, the new developments in repair of abdominal wall hernias like surgical techniques within the abdominal wall, release operations (transversus muscle release, component separation), Botox application, and robot-assisted repair methods were included.Due to an increase of the number of patients and further development of surgical techniques, repair of primary and secondary abdominal wall hernias attracts increasing interests of many surgeons. Whereas up to three decades ago hernia-related publications did not exceed 20 per year, currently this number is about 10-fold higher. Recent years are characterized by the advent of new techniques-minimal invasive techniques using robotics and laparoscopy, totally extraperitoneal repairs, novel myofascial release techniques for optimal closure of large defects, and Botox for relaxing the abdominal wall. Furthermore, a concomitant rectus diastasis was recognized as a significant risk factor for recurrence. Despite insufficient evidence with respect to these new techniques, it seemed to us necessary to include them in the update to stimulate surgeons to do research in these fields.Guidelines are recommendations based on best available evidence intended to help the surgeon to improve the quality of his daily work. However, science is a continuously evolving process, and as such guidelines should be updated about every 3 years. For a comprehensive reference, however, it is suggested to read both the initial guidelines published in 2014 together with the update. Moreover, the presented update includes also techniques which were not known 3 years before.

Background The reported range of seroma formation in the literature after TEP repair is between 0.5 and 12.2% and for TAPP between 3.0 and 8.0%. Significant clinical factors associated with seroma formation include old age, a large hernia defect, an extension of the hernia sac into the scrotum, as well as the presence of a residual indirect sac. Seroma formation is a frequent complication of laparoendoscopic mesh repair of moderate to large-size direct (medial) inguinal hernia defects. This present analysis of data from the Herniamed Hernia Registry now explores the influencing factors for seroma formation in male patients after TAPP repair of primary unilateral inguinal hernia. Methods In total, 20,004 male patients with TAPP repair of primary unilateral inguinal hernia were included in uni- and multivariable analysis. Results Univariable analysis revealed the highly significant impact of the fixation technique on the seroma rate (non-fixation 0.7% vs. tacks 2.1% vs. glue 3.9%; p

Background In inguinal hernia repair, chronic pain must be expected in 10–12% of cases. Around one-quarter of patients (2–4%) experience severe pain requiring treatment. The risk factors for chronic pain reported in the literature include young age, female gender, perioperative pain, postoperative pain, recurrent hernia, open hernia repair, perioperative complications, and penetrating mesh fixation. This present analysis of data from the Herniamed Hernia Registry now investigates the influencing factors for chronic pain in male patients after primary, unilateral inguinal hernia repair in TAPP technique. Methods In total, 20,004 patients from the Herniamed Hernia Registry were included in uni- and multivariable analyses. For all patients, 1-year follow-up data were available. Results Multivariable analysis revealed that onset of pain at rest, on exertion, and requiring treatment was highly significantly influenced, in each case, by younger age (p

In 2014 the International Endohernia Society (IEHS) published the first international "Guidelines for laparoscopic treatment of ventral and incisional abdominal wall hernias". Guidelines reflect the currently best available evidence in diagnostics and therapy and give recommendations to help surgeons to standardize their techniques and to improve their results. However, science is a dynamic field which is continuously developing. Therefore, guidelines require regular updates to keep pace with the evolving literature.METHODS: For the development of the original guidelines all relevant literature published up to year 2012 was analyzed using the ranking of the Oxford Centre for Evidence-Based-Medicine. For the present update all of the previous authors were asked to evaluate the literature published during the recent years from 2012 to 2017 and revise their statements and recommendations given in the initial guidelines accordingly. In two Consensus Conferences (October 2017 Beijing, March 2018 Cologne) the updates were presented, discussed, and confirmed. To avoid redundancy, only new statements or recommendations are included in this paper. Therefore, for full understanding both of the guidelines, the original and the current, must be read. In addition, the new developments in repair of abdominal wall hernias like surgical techniques within the abdominal wall, release operations (transversus muscle release, component separation), Botox application, and robot-assisted repair methods were included.RESULTS: Due to an increase of the number of patients and further development of surgical techniques, repair of primary and secondary abdominal wall hernias attracts increasing interests of many surgeons. Whereas up to three decades ago hernia-related publications did not exceed 20 per year, currently this number is about 10-fold higher. Recent years are characterized by the advent of new techniques-minimal invasive techniques using robotics and laparoscopy, totally extraperitoneal repairs, novel myofascial release techniques for optimal closure of large defects, and Botox for relaxing the abdominal wall. Furthermore, a concomitant rectus diastasis was recognized as a significant risk factor for recurrence. Despite still insufficient evidence with respect to these new techniques it seemed to us necessary to include them in the update to stimulate surgeons to do research in these fields.CONCLUSION: Guidelines are recommendations based on best available evidence intended to help the surgeon to improve the quality of his daily work. However, science is a continuously evolving process, and as such guidelines should be updated about every 3 years. For a comprehensive reference, however, it is suggested to read both the initially guidelines published in 2014 together with the update. Moreover, the presented update includes also techniques which were not known 3 years before.

Whereas for TEP the guidelines do not recommend mesh fixation on the basis of meta-analyses regardless of the defect size, for TAPP mesh fixation can be omitted only up to a defect size of 3 cm because of the paucity of studies on this topic. Hence, this study now seeks to explore this subject on the basis of prospective data from the Herniamed Hernia Registry. In the period September 01, 2009, to January 31, 2014, 11,228 male patients were operated on with the TAPP technique for a primary unilateral inguinal hernia and were followed up for 1 year. Mesh fixation was used for 7422 (66.1 %) of these patients and no mesh fixation for 3806 patients (33.9 %). Unadjusted analysis did not find any significant difference in the recurrence rate (0.88 % with fixation vs. 1.1 % without fixation; p = 0.259). Multivariable analysis of all potential influence factors (age, ASA, BMI, risk factors, defect size, mesh fixation, localization of defect, mesh size) did not identify any factor that impacted recurrence on 1-year follow-up. Only for medial and combined defect localization versus lateral localization was a highly significant effect identified (p

The HerniaSurge guidelines have the highest evidence with respect to a strong recommendation for mesh-based surgical techniques. This evidence is equally valid for the Lichtenstein procedure as for the minimally invasive procedures TEP/TAPP. In the case of discrete symptomatic or asymptomatic inguinal hernias, watchful waiting can be an option, taking into account health status and social circumstances. Femoral hernias, on the other hand, should be treated promptly with mesh insertion. Also favored are laparoendoscopic techniques. The Shouldice repair achieves the least recurrences from the suturing procedures and may be an acceptable alternative when indicated or when the patient does not desire mesh reinforcement. In this case, a detailed patient education is necessary.The complication potential of plastic meshes should be explained. The weight is no longer considered a suitable parameter for the classification of meshes and is no longer recommended for mesh selection. Large pore (1-1.5 mm) monofilament implants have the best integration potential and should have a tear strength of approximately 16 NmPerioperative antibiotic prophylaxis in open repair procedures is recommended only in patients with an increased risk of infections. In laparoendoscopic procedures, antibiotic prophylaxis should not be performed or used with the utmost restraint. Careful preparation reduces chronic inguinal and testicular pain. In the case of interference of mesh and nerve, the nerve can be resected. A return to daily activity is recommended within 3-5 days.The documentation of patient data should be done by establishing hernia registers for quality assurance and for the development of further treatment options. The implementation of the guidelines is supported by HerniaSurge.

Introduction: Worldwide, more than 20 million patients undergo groin hernia repair annually. The many different approaches, treatment indications and a significant array of techniques for groin hernia repair warrant guidelines to standardize care, minimize complications, and improve results. The main goal of these guidelines is to improve patient outcomes, specifically to decrease recurrence rates and reduce chronic pain, the most frequent problems following groin hernia repair. They have been endorsed by all five continental hernia societies, the International Endo Hernia Society and the European Association for Endoscopic Surgery. Methods: An expert group of international surgeons (the HerniaSurge Group) and one anesthesiologist pain expert was formed. The group consisted of members from all continents with specific experience in hernia-related research. Care was taken to include surgeons who perform different types of repair and had preferably performed research on groin hernia surgery. During the Group’s first meeting, evidence-based medicine (EBM) training occurred and 166 key questions (KQ) were formulated. EBM rules were followed in complete literature searches (including a complete search by The Dutch Cochrane database) to January 1, 2015 and to July 1, 2015 for level 1 publications. The articles were scored by teams of two or three according to Oxford, SIGN and Grade methodologies. During five 2-day meetings, results were discussed with the working group members leading to 136 statements and 88 recommendations. Recommendations were graded as “strong” (recommendations) or “weak” (suggestions) and by consensus in some cases upgraded. In the Results and summary section below, the term “should” refers to a recommendation. The AGREE II instrument was used to validate the guidelines. An external review was performed by three international experts. They recommended the guidelines with high scores. Results and summary: The risk factors for inguinal hernia (IH) include: family history, previous contra-lateral hernia, male gender, age, abnormal collagen metabolism, prostatectomy, and low body mass index. Peri-operative risk factors for recurrence include poor surgical techniques, low surgical volumes, surgical inexperience and local anesthesia. These should be considered when treating IH patients. IH diagnosis can be confirmed by physical examination alone in the vast majority of patients with appropriate signs and symptoms. Rarely, ultrasound is necessary. Less commonly still, a dynamic MRI or CT scan or herniography may be needed. The EHS classification system is suggested to stratify IH patients for tailored treatment, research and audit. Symptomatic groin hernias should be treated surgically. Asymptomatic or minimally symptomatic male IH patients may be managed with “watchful waiting” since their risk of hernia-related emergencies is low. The majority of these individuals will eventually require surgery; therefore, surgical risks and the watchful waiting strategy should be discussed with patients. Surgical treatment should be tailored to the surgeon’s expertise, patient- and hernia-related characteristics and local/national resources. Furthermore, patient health-related, life style and social factors should all influence the shared decision-making process leading up to hernia management. Mesh repair is recommended as first choice, either by an open procedure or a laparo-endoscopic repair technique. One standard repair technique for all groin hernias does not exist. It is recommended that surgeons/surgical services provide both anterior and posterior approach options. Lichtenstein and laparo-endoscopic repair are best evaluated. Many other techniques need further evaluation. Provided that resources and expertise are available, laparo-endoscopic techniques have faster recovery times, lower chronic pain risk and are cost effective. There is discussion concerning laparo-endoscopic management of potential bilateral hernias (occult hernia issue). After patient consent, during TAPP, the contra-lateral side should be inspected. This is not suggested during unilateral TEP repair. After appropriate discussions with patients concerning results tissue repair (first choice is the Shouldice technique) can be offered. Day surgery is recommended for the majority of groin hernia repair provided aftercare is organized. Surgeons should be aware of the intrinsic characteristics of the meshes they use. Use of so-called low-weight mesh may have slight short-term benefits like reduced postoperative pain and shorter convalescence, but are not associated with better longer-term outcomes like recurrence and chronic pain. Mesh selection on weight alone is not recommended. The incidence of erosion seems higher with plug versus flat mesh. It is suggested not to use plug repair techniques. The use of other implants to replace the standard flat mesh in the Lichtenstein technique is currently not recommended. In almost all cases, mesh fixation in TEP is unnecessary. In both TEP and TAPP it is recommended to fix mesh in M3 hernias (large medial) to reduce recurrence risk. Antibiotic prophylaxis in average-risk patients in low-risk environments is not recommended in open surgery. In laparo-endoscopic repair it is never recommended. Local anesthesia in open repair has many advantages, and its use is recommended provided the surgeon is experienced in this technique. General anesthesia is suggested over regional in patients aged 65 and older as it might be associated with fewer complications like myocardial infarction, pneumonia and thromboembolism. Perioperative field blocks and/or subfascial/subcutaneous infiltrations are recommended in all cases of open repair. Patients are recommended to resume normal activities without restrictions as soon as they feel comfortable. Provided expertise is available, it is suggested that women with groin hernias undergo laparo-endoscopic repair in order to decrease the risk of chronic pain and avoid missing a femoral hernia. Watchful waiting is suggested in pregnant women as groin swelling most often consists of self-limited round ligament varicosities. Timely mesh repair by a laparo-endoscopic approach is suggested for femoral hernias provided expertise is available. All complications of groin hernia management are discussed in an extensive chapter on the topic. Overall, the incidence of clinically significant chronic pain is in the 10–12% range, decreasing over time. Debilitating chronic pain affecting normal daily activities or work ranges from 0.5 to 6%. Chronic postoperative inguinal pain (CPIP) is defined as bothersome moderate pain impacting daily activities lasting at least 3 months postoperatively and decreasing over time. CPIP risk factors include: young age, female gender, high preoperative pain, early high postoperative pain, recurrent hernia and open repair. For CPIP the focus should be on nerve recognition in open surgery and, in selected cases, prophylactic pragmatic nerve resection (planned resection is not suggested). It is suggested that CPIP management be performed by multi-disciplinary teams. It is also suggested that CPIP be managed by a combination of pharmacological and interventional measures and, if this is unsuccessful, followed by, in selected cases (triple) neurectomy and (in selected cases) mesh removal. For recurrent hernia after anterior repair, posterior repair is recommended. If recurrence occurs after a posterior repair, an anterior repair is recommended. After a failed anterior and posterior approach, management by a specialist hernia surgeon is recommended. Risk factors for hernia incarceration/strangulation include: female gender, femoral hernia and a history of hospitalization related to groin hernia. It is suggested that treatment of emergencies be tailored according to patient- and hernia-related factors, local expertise and resources. Learning curves vary between different techniques. Probably about 100 supervised laparo-endoscopic repairs are needed to achieve the same results as open mesh surgery like Lichtenstein. It is suggested that case load per surgeon is more important than center volume. It is recommended that minimum requirements be developed to certify individuals as expert hernia surgeon. The same is true for the designation “Hernia Center”. From a cost-effectiveness perspective, day-case laparoscopic IH repair with minimal use of disposables is recommended. The development and implementation of national groin hernia registries in every country (or region, in the case of small country populations) is suggested. They should include patient follow-up data and account for local healthcare structures. A dissemination and implementation plan of the guidelines will be developed by global (HerniaSurge), regional (international societies) and local (national chapters) initiatives through internet websites, social media and smartphone apps. An overarching plan to improve access to safe IH surgery in low-resource settings (LRSs) is needed. It is suggested that this plan contains simple guidelines and a sustainability strategy, independent of international aid. It is suggested that in LRSs the focus be on performing high-volume Lichtenstein repair under local anesthesia using low-cost mesh. Three chapters discuss future research, guidelines for general practitioners and guidelines for patients. Conclusions: The HerniaSurge Group has developed these extensive and inclusive guidelines for the management of adult groin hernia patients. It is hoped that they will lead to better outcomes for groin hernia patients wherever they live. More knowledge, better training, national audit and specialization in groin hernia management will standardize care for these patients, lead to more effective and efficient healthcare and provide direction for future research.

The new worldwide guidelines of all international hernia societies only recommend the mesh-based methods TEP, TAPP and Lichtenstein. The best mesh-free technique, the Shouldice operation, should only be used if the patient has declined the use of a mesh or no mesh is available. The systematic use of the Shouldice technique for smaller inguinal hernias and younger men should be confined to study settings. A tailored approach should be taken for mesh-based procedures to minimize the risk to patients. Due to lower pain rates the laparoendoscopic techniques TEP and TAPP are the methods of choice for primary male unilateral inguinal hernia. They are also preferred for female patients as they improve the diagnostics of femoral hernias as well as for bilateral inguinal hernias in female and male patients. The Lichtenstein operation tends to be recommended for scrotal hernia, following previous pelvic surgery, vascular surgery, liver cirrhosis, radiotherapy and intolerance of general anesthesia. This also applies for recurrent hernia following a previous laparoendoscopic primary operation. Similarly, recurrent hernia after a primary suture or mesh procedure should be repaired using the TEP or TAPP technique. In emergency procedures for incarceration the diagnostic superiority of laparoscopy and the ability to reposition the incarcerated organs should be utilized. The inguinal hernia can then be repaired at the same time or later depending on whether there is any local infection.

Although clinical examination is the gold standard for the diagnosis of groin hernia, imaging procedures can improve the detection of femoral hernias, incipient hernias, and less-common types of hernias (e.g., an obturator hernia). The aim of this study is to evaluate the sensitivity and specificity of dynamic inguinal ultrasound (DIUS). Between July 2010 and June 2015, 4951 clinical and ultrasound examinations of the groin area were conducted at the Hanse-Hernienzentrum in Hamburg, Germany. The ultrasonographic findings were prospectively evaluated to determine the number of inguinal and femoral hernia diagnoses that were ultrasonically confirmed and also to consider cases in which clinical examination overlooked these diagnoses. The results were compared with the intraoperative findings. The results show that standardized ultrasound examination of the groin area with high-frequency, small-part linear transducers also serves to accurately display femoral and small or occult groin hernias. The high-level specificity (0.9980) and sensitivity (0.9758) are proof of the procedure’s quality. To ensure high-quality hernia treatment, regular use of standardized ultrasound examinations is recommended.