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Nonmesh repairs are often preferred in younger patients to avoid potential long\u2010term complications, but data on recurrence rates in this age group are limited. We aimed to assess the rate of reoperation for recurrence following primary groin hernia repair in adolescents aged 10\u201319\u00a0years.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This was a register\u2010based cohort study covering three decades (1992\u20132022), utilizing data from the Danish National Patient Register linked to data from the Danish Civil Registration System, ensuring comprehensive nationwide coverage and complete follow\u2010up. The cumulative rate of reoperation for recurrence was estimated at 10\u00a0years of follow\u2010up. Cox proportional hazards regression analysis was used to compare the risk of reoperation for recurrence between mesh and nonmesh repairs. Outcomes included reoperation for recurrence, readmission, and mortality.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Among the 2404 included groins, most were male (80%), and the median age was 16 (IQR, 12\u201319) years. Most (99%) groin hernias were inguinal, and few (1%) were femoral. Of the inguinal repairs, 35% were mesh, 64% were nonmesh, and 1% were unspecified repairs. The follow\u2010up time was median 16 (IQR, 9\u201321) years. The cumulative rate of reoperation for recurrence across all inguinal repairs was 3.8% (95% CI, 3.0\u20134.9) after 10\u00a0years of follow\u2010up. For older adolescents aged 15\u201319\u00a0years, the cumulative rate of reoperation for recurrence after mesh and nonmesh repair was 2.7% (95% CI, 1.6\u20134.6) and 4.1% (95% CI, 2.6\u20136.7), respectively. Nonmesh repair had a higher adjusted hazard ratio of reoperation for recurrence compared with mesh repair (adjusted hazard ratio, 2.11; 95% CI, 1.05\u20134.23). For femoral repairs, most (67% [18\/27]) were open nonmesh repairs, and few were reoperated for recurrence.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The cumulative rate of reoperation for recurrence was low in adolescents. These findings suggest that nonmesh repair may be sufficient for primary groin hernia repair in adolescents, potentially avoiding the need for mesh implantation.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/wjs.12613","type":"journal-article","created":{"date-parts":[[2025,5,7]],"date-time":"2025-05-07T21:33:38Z","timestamp":1746653618000},"page":"1441-1448","source":"Crossref","is-referenced-by-count":1,"title":["Reoperation for Recurrence After Groin Hernia Repair in Adolescents: A Nationwide Register\u2010Based Cohort Study"],"prefix":"10.1002","volume":"49","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6247-0057","authenticated-orcid":false,"given":"Hugin","family":"Reistrup","sequence":"first","affiliation":[{"name":"Center for Perioperative Optimization Department of Surgery Copenhagen University Hospital\u2014Herlev and Gentofte  Herlev Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8757-831X","authenticated-orcid":false,"given":"Siv","family":"Fonnes","sequence":"additional","affiliation":[{"name":"Center for Perioperative Optimization Department of Surgery Copenhagen University Hospital\u2014Herlev and Gentofte  Herlev Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1877-9174","authenticated-orcid":false,"given":"Andrea","family":"Joensen","sequence":"additional","affiliation":[{"name":"Section of Epidemiology Department of Public Health University of Copenhagen  Copenhagen Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0063-1086","authenticated-orcid":false,"given":"Jacob","family":"Rosenberg","sequence":"additional","affiliation":[{"name":"Center for Perioperative Optimization Department of Surgery Copenhagen University Hospital\u2014Herlev and Gentofte  Herlev Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,5,7]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0054367"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1093\/bjsopen\/zrad080"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10029\u2010017\u20101668\u2010x"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.21037\/ls\u201020\u2010130"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.21037\/ls\u201020\u2010122"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/14651858.CD011517.pub2"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/bjs.5756"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.amjsurg.2017.02.015"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.1055\/s\u20100040\u20101721420"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00423\u2010023\u201002947\u20109"},{"issue":"10","key":"e_1_2_10_12_1","article-title":"A Qualitative Study of Groin Hernia Management in Adolescents","volume":"70","author":"Reistrup H.","year":"2023","journal-title":"Danish Medical Journal"},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.4274\/jcrpe.2007"},{"key":"e_1_2_10_14_1","doi-asserted-by":"publisher","DOI":"10.1542\/peds.102.s3.507"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.3389\/jaws.2023.12336"},{"key":"e_1_2_10_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cpsurg.2024.101459"},{"key":"e_1_2_10_17_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pmed.1001885"},{"key":"e_1_2_10_18_1","doi-asserted-by":"publisher","DOI":"10.2147\/CLEP.S91125"},{"key":"e_1_2_10_19_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10654\u2010014\u20109930\u20103"},{"key":"e_1_2_10_20_1","volume-title":"Danish Classification of Surgical Procedures and Therapies","year":"1973"},{"issue":"4","key":"e_1_2_10_21_1","article-title":"Health Registries as Research Tools: A Review of Methodological Key Issues","volume":"70","author":"S\u00f8rensen S. 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