{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T14:47:12Z","timestamp":1787755632610,"version":"build-2784847793"},"reference-count":12,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"1","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"<jats:sec>\n                    <jats:title>Case:<\/jats:title>\n                    <jats:p>We present the case of a 27-year-old man who sustained a quadriceps tendon rupture within 3 months after surgical repair of an ipsilateral patellar tendon rupture repaired with the transosseous technique. At 1-year follow-up, the patient demonstrated outcome measures indicating an excellent functional recovery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>This case demonstrated a rare injury pattern treated with surgical repair and a structured rehabilitation program that led to a functional recovery. The case underscores the mechanical, technical, and compliance-related factors that contributed to this catastrophic sequential extensor-mechanism failure. Comprehensive patient education, careful tunnel planning, and structured follow-up are essential to optimize healing and prevent recurrence.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence:<\/jats:title>\n                    <jats:p>Level IV, Case Report.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.2106\/jbjs.cc.25.00411","type":"journal-article","created":{"date-parts":[[2026,2,2]],"date-time":"2026-02-02T19:00:20Z","timestamp":1770058820000},"update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":0,"title":["Quadriceps Tendon Rupture While Rehabilitating from a Patellar Tendon Repair"],"prefix":"10.2106","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-0966-0788","authenticated-orcid":false,"given":"Ethan","family":"Vallellanes","sequence":"first","affiliation":[{"name":"Advanced Orthopedics and Sports Medicine, San Francisco, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-4981-2110","authenticated-orcid":false,"given":"Patrick","family":"Waldron","sequence":"additional","affiliation":[{"name":"Advanced Orthopedics and Sports Medicine, San Francisco, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James L.","family":"Chen","sequence":"additional","affiliation":[{"name":"Advanced Orthopedics and Sports Medicine, San Francisco, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3984-4804","authenticated-orcid":false,"given":"Ajith","family":"Malige","sequence":"additional","affiliation":[{"name":"Advanced Orthopedics and Sports Medicine, San Francisco, California"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2026,1]]},"reference":[{"issue":"10","key":"bib4-20260202","doi-asserted-by":"crossref","first-page":"2325967120954808","DOI":"10.1177\/2325967120954808","article-title":"Biomechanical analysis of patellar tendon repair with knotless suture anchor tape versus transosseous suture","volume":"8","author":"Massey","year":"2020","journal-title":"Orthop J Sports Med."},{"issue":"11","key":"bib5-20260202","doi-asserted-by":"crossref","first-page":"1931","DOI":"10.1016\/j.injury.2012.08.044","article-title":"Clinical outcomes after repair of quadriceps tendon rupture: a systematic review","volume":"43","author":"Ciriello","year":"2012","journal-title":"Injury."},{"issue":"4","key":"bib6-20260202","doi-asserted-by":"crossref","first-page":"445","DOI":"10.1016\/j.jor.2017.07.008","article-title":"Bilateral ruptures of the extensor mechanism of the knee: a systematic review","volume":"14","author":"Camarda","year":"2017","journal-title":"J Orthop."},{"issue":"3","key":"bib7-20260202","doi-asserted-by":"crossref","first-page":"1050","DOI":"10.1007\/s11999-013-3396-6","article-title":"Complications in brief: quadriceps and patellar tendon tears","volume":"472","author":"Volk","year":"2014","journal-title":"Clin Orthop Relat Res."},{"issue":"08","key":"bib8-20260202","first-page":"1","article-title":"Traumatic rupture of the ipsilateral quadriceps and patellar tendons: a floating patella","volume":"19","author":"Song","year":"2009","journal-title":"Univ Pa Orthop J"},{"issue":"9","key":"bib9-20260202","first-page":"446","article-title":"Floating patella: combined quadriceps tendon, retinacula, and patellar tendon ruptures in a high-performance elite athlete","volume":"39","author":"Langer","year":"2010","journal-title":"Am J Orthop (Belle Mead 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review","volume":"9","author":"Carlson Strother","year":"2021","journal-title":"Orthop J Sports Med."},{"issue":"5","key":"bib13-20260202","doi-asserted-by":"crossref","first-page":"e1541","DOI":"10.1016\/j.eats.2017.06.013","article-title":"Quadriceps tendon repair using knotless anchors and suture tape","volume":"6","author":"Amini","year":"2017","journal-title":"Arthrosc Tech."},{"issue":"2","key":"bib14-20260202","doi-asserted-by":"crossref","first-page":"316","DOI":"10.1177\/0363546507308192","article-title":"Early motion after quadriceps and patellar tendon repairs: outcomes with single-suture augmentation","volume":"36","author":"West","year":"2008","journal-title":"Am J Sports Med."},{"issue":"8","key":"bib15-20260202","doi-asserted-by":"crossref","first-page":"2695","DOI":"10.1007\/s00167-021-06537-4","article-title":"High rates of return to play and work follow knee extensor tendon ruptures but low rate of return to pre-injury level of play","volume":"29","author":"Haskel","year":"2021","journal-title":"Knee Surg Sports Traumatol Arthrosc."}],"container-title":["JBJS Case Connector"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ovid.com\/10.2106\/JBJS.CC.25.00411","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T13:46:15Z","timestamp":1787751975000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ovid.com\/10.2106\/JBJS.CC.25.00411"}},"subtitle":["A Case Report"],"short-title":[],"issued":{"date-parts":[[2026,1]]},"references-count":12,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2026]]}},"URL":"https:\/\/doi.org\/10.2106\/jbjs.cc.25.00411","relation":{},"ISSN":["2160-3251"],"issn-type":[{"value":"2160-3251","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,1]]}}}