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Traditional transosseous techniques require large length grafts and full-thickness patellar tunnels, increasing the risk of fractures.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>\n                      To present and evaluate a new surgical technique for reconstruction of CQTRs using an ipsilateral semitendinosus (ST) autograft fixed through a proximal patellar socket and Endobutton\n                      <jats:sup>\u00ae<\/jats:sup>\n                      fixation, thus minimizing graft wastage and fracture risk.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      With the knee flexed at 90\u00b0 and a thigh tourniquet, the ipsilateral ST is harvested through a medial incision, reinforced with FiberWire\n                      <jats:sup>\u00ae<\/jats:sup>\n                      -2 sutures, doubled and measured diametrically. A midline anterior approach exposed the chronic tendon defect, which must be debrided to the healthy margins. Three cavities are created in the proximal patella with an incannulated drill, each 5\u00a0mm laterally and medially and 7\u20138\u00a0mm centrally, only in the proximal part, to accommodate the thickness of the graft. The rest of the quadriceps is reinforced with FiberWire\n                      <jats:sup>\u00ae<\/jats:sup>\n                      -5 Krakow sutures. Using transport sutures, the prepared ST graft is inserted into the tendon via a Pulvertaft weft, inserted into the central cavity, stretched and secured over the distal patellar cortex with an Endobutton\n                      <jats:sup>\u00ae<\/jats:sup>\n                      . Krakow sutures for the native tendon and a FiberTape\n                      <jats:sup>\u00ae<\/jats:sup>\n                      loop around the loop of the graft are passed through the respective tunnels and tied over the anterior patella. Intraoperative flexion confirms the stability of the construct; fluoroscopy verifies the height of the patella and the position of the Endobutton\n                      <jats:sup>\u00ae<\/jats:sup>\n                      .\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>This proximal socket technique minimises the use of grafts and patellar stress, reliably restoring extensor mechanism function in CQTRs, offering a safe alternative to full transosseous tunnel methods.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00402-025-06138-7","type":"journal-article","created":{"date-parts":[[2025,11,27]],"date-time":"2025-11-27T09:13:44Z","timestamp":1764234824000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Patellar socket technique for chronic quadriceps tendon repair: maximizing graft efficiency"],"prefix":"10.1007","volume":"145","author":[{"given":"Pasquale","family":"Porcelli","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kristijan","family":"Zoccola","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Simone","family":"Cambursano","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Riccardo","family":"Giai Via","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fortunato","family":"Giustra","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alessandro","family":"Mass\u00e8","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marcello","family":"Capella","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2025,11,27]]},"reference":[{"issue":"4","key":"6138_CR1","doi-asserted-by":"publisher","first-page":"626","DOI":"10.1016\/0002","volume":"95","author":"C Scuderi","year":"1958","unstructured":"Scuderi C (1958) Ruptures of the quadriceps tendon; study of Twenty tendon ruptures. 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