{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T03:26:23Z","timestamp":1792812383769,"version":"4.5.0"},"reference-count":30,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2023,1,16]],"date-time":"2023-01-16T00:00:00Z","timestamp":1673827200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2023,1,16]],"date-time":"2023-01-16T00:00:00Z","timestamp":1673827200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"},{"start":{"date-parts":[[2023,1,16]],"date-time":"2023-01-16T00:00:00Z","timestamp":1673827200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2023,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>Acute Achilles tendon ruptures (AATRs) are a common sporting injury, whether for recreational athletes or elite athletes. Prior research has shown returning to physical activity after extended periods of inactivity leads to increased rates of musculoskeletal injuries. The purpose of this study was to investigate rates of acute Achilles\u2019 tendon ruptures at a single academic institute in the peri\u2010COVID era, with corollary to the recent NFL season.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A retrospective search was conducted using current procedural terminology to identify the total number of Achilles acute primary repair surgeries performed from years 2017 to 2021. Non\u2010operatively managed AATRs were identified from the same electronic medical record using ICD\u201010 codes. NFL data were obtained from publicly available sites according to previously validated studies.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of 588 patients who sustained AATRs and underwent primary surgical repair were identified, primarily men (75.7%, <jats:italic>n<\/jats:italic>\u2009=\u2009445), with an average age of 43.22\u2009\u00b1\u200914.4 years. The number and corresponding incidence of AATR repairs per year was: 2017: <jats:italic>n<\/jats:italic>\u2009=\u2009124 (21.1%), 2018: <jats:italic>n<\/jats:italic>\u2009=\u2009110 (18.7%), 2019: <jats:italic>n<\/jats:italic>\u2009=\u2009130 (22.1%), 2020: n\u2009=\u200986 (14.6%), 2021: <jats:italic>n<\/jats:italic>\u2009=\u2009138 (23.5%), indicating a 7.5% decrease in rate of AATRs from 2019 to 2020, followed by an 8.9% increase in incidence from 2020 to 2021. Within the NFL, the number of AATRs resulting in an injured reserve stint increased every regular season from 2019 to 2020: <jats:italic>n<\/jats:italic>\u2009=\u200911 (21.2%), to 2020\u20132021: <jats:italic>n<\/jats:italic>\u2009=\u200917 (32.7%), to this past 2021\u20132022 season: <jats:italic>n<\/jats:italic>\u2009=\u200924 (46.2%).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>AATR surgeries seem to have increased in 2021 following a 2020 COVID pandemic\u2010induced quarantine for recreational athletes at a single academic institution and for professional athletes in the NFL, although these results are of questionable clinical significance. This provides prognostic information when counseling patients and athletes on return to activity or sport.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of evidence<\/jats:title><jats:p>Level IV.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-023-07309-y","type":"journal-article","created":{"date-parts":[[2023,1,16]],"date-time":"2023-01-16T09:02:56Z","timestamp":1673859776000},"page":"2160-2165","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Increased incidence of acute achilles tendon ruptures in the peri\u2010pandemic COVID era with parallels to the 2021\u201322\u00a0NFL season"],"prefix":"10.1002","volume":"31","author":[{"given":"Andrew S.","family":"Bi","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopedic Surgery NYU Langone Health 301 E 17th St 10003 New York NY USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohammad T.","family":"Azam","sequence":"additional","affiliation":[{"name":"<!--<label>2<\/label>--> Department of Orthopedic Surgery, Division of Foot and Ankle Surgery NYU Langone Health 171 Delancey St. 2nd Floor 10002 New York NY USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James J.","family":"Butler","sequence":"additional","affiliation":[{"name":"<!--<label>2<\/label>--> Department of Orthopedic Surgery, Division of Foot and Ankle Surgery NYU Langone Health 171 Delancey St. 2nd Floor 10002 New York NY USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael J.","family":"Alaia","sequence":"additional","affiliation":[{"name":"<!--<label>3<\/label>--> Department of Orthopedic Surgery, Division of Sports Medicine NYU Langone Health 333 East 38th St, 4th Floor 10016 New York NY USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laith M.","family":"Jazrawi","sequence":"additional","affiliation":[{"name":"<!--<label>3<\/label>--> Department of Orthopedic Surgery, Division of Sports Medicine NYU Langone Health 333 East 38th St, 4th Floor 10016 New York NY USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guillem","family":"Gonzalez\u2010Lomas","sequence":"additional","affiliation":[{"name":"<!--<label>3<\/label>--> Department of Orthopedic Surgery, Division of Sports Medicine NYU Langone Health 333 East 38th St, 4th Floor 10016 New York NY USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7286-0689","authenticated-orcid":false,"given":"John G.","family":"Kennedy","sequence":"additional","affiliation":[{"name":"<!--<label>2<\/label>--> Department of Orthopedic Surgery, Division of Foot and Ankle Surgery NYU Langone Health 171 Delancey St. 2nd Floor 10002 New York NY USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,1,16]]},"reference":[{"key":"e_1_2_10_2_2","doi-asserted-by":"publisher","DOI":"10.1080\/00913847.2021.1976602"},{"key":"e_1_2_10_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.asmr.2021.05.002"},{"key":"e_1_2_10_4_2","doi-asserted-by":"publisher","DOI":"10.1249\/MSS.0000000000002459"},{"key":"e_1_2_10_5_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41598\u2010021\u201097065\u20101"},{"key":"e_1_2_10_6_2","doi-asserted-by":"crossref","unstructured":"CamyC BriocheT SenniK BertaudA GenovesioC LamyE FovetT ChopardA PithiouxM RoffinoSEffects of hindlimb unloading and subsequent reloading on the structure and mechanical properties of achilles tendon\u2010to\u2010bone attachment.FASEB 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July 2022","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"2 January 2023","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"16 January 2023","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors report the following potential conflicts of interest or sources of funding: MJA is a consultant for Arthrex and Mitek. MJA reports as a board or committee member for the American Academy for Orthopedic Surgeons and Arthroscopy Association of North America. LMJ received research support from Arthrex, Mitek, and Smith & Nephew. JGK is a consultant to Arteriocyte Industries (Isto Biologics) and Arthrex, and receives support from Ohnell Family Foundation, Mr. and Mrs. Michael J. Levitt and Mr. Winston Fisher. JGK reports as a board or committee member for the American Orthopaedic Foot and Ankle Society, European Society of Sports Traumatology, Knee Surgery and Arthroscopy, Ankle and Foot Associates, and International Society for Cartilage Repair of the Ankle.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"Ethical approval was obtained from the institution\u2019s IRB.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}},{"value":"Informed consent was not required as this manuscript is a retrospective chart review study.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Informed consent"}},{"value":"This content has been made available to all.","name":"free","label":"Free to read"}]}}