{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T04:25:47Z","timestamp":1791260747692,"version":"4.1.0"},"reference-count":12,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2007,11,30]],"date-time":"2007-11-30T00:00:00Z","timestamp":1196380800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am J Sports Med"],"published-print":{"date-parts":[[2008,1]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Acute surgical repair of proximal hamstring ruptures has been shown to result in a high return to preinjury activity level.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Hypothesis<\/jats:title>\n                    <jats:p>Achilles allograft reconstruction of chronic complete proximal hamstring ruptures results in improved function and strength that approaches that of acute surgical repairs.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Study Design<\/jats:title>\n                    <jats:p>Cohort study; Level of evidence, 2.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Between 2002 and 2005, 26 patients underwent surgical treatment for complete proximal hamstring ruptures. Twenty-one were acute primary repairs. Five chronic ruptures were treated with Achilles allograft reconstruction with (n = 2) or without (n = 2) interference screw fixation or mobilization and primary repair (n = 1). Isokinetic strength testing was conducted postoperatively in 11 acute and 3 chronic cases, and a functional questionnaire was given at most recent follow-up.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Subjective results for all patients at a mean follow-up of 20 months revealed good leg control in 96%, no pain in 80%, and return to sporting activities in 76%. Ninety-six percent of patients said they would have the procedure done again. With the isokinetic testing available at most recent follow-up, there was no significant difference in the mean hamstring strength deficits for the acute versus chronic groups tested at 60 deg\/s (8% vs 21%, P = .295) and 180 deg\/s (12% vs 2%, P = .294). Overall, there were 3 major adverse events and 5 patients with superficial wound drainage treated with antibiotics.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Surgical treatment of acute and chronic complete proximal hamstring ruptures can result in a high return to full activity. Reconstruction of chronic ruptures with Achilles allograft appears to restore function and strength comparable to acute repairs.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/0363546507312167","type":"journal-article","created":{"date-parts":[[2007,11,30]],"date-time":"2007-11-30T21:10:07Z","timestamp":1196457007000},"page":"104-109","source":"Crossref","is-referenced-by-count":131,"title":["Surgical Treatment of Acute versus Chronic Complete Proximal Hamstring Ruptures"],"prefix":"10.1177","volume":"36","author":[{"given":"Greg J.","family":"Folsom","sequence":"first","affiliation":[{"name":"The Minnesota Sports Medicine Orthopaedic Sports Medicine Fellowship Program and Twin Cities Orthopaedics, Eden Prairie, Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher M.","family":"Larson","sequence":"additional","affiliation":[{"name":"The Minnesota Sports Medicine Orthopaedic Sports Medicine Fellowship Program and Twin Cities Orthopaedics, Eden Prairie, Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2007,11,30]]},"reference":[{"key":"bibr1-0363546507312167","doi-asserted-by":"publisher","DOI":"10.1177\/036354659001800419"},{"key":"bibr2-0363546507312167","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-004-0563-z"},{"key":"bibr3-0363546507312167","doi-asserted-by":"publisher","DOI":"10.1136\/bjsm.2004.015719"},{"key":"bibr4-0363546507312167","doi-asserted-by":"publisher","DOI":"10.1053\/j.otsm.2004.09.005"},{"key":"bibr5-0363546507312167","doi-asserted-by":"publisher","DOI":"10.1177\/03635465980260060801"},{"key":"bibr6-0363546507312167","unstructured":"GarrettWE SpeerKP KirkendallDT. Principles and Practice of Orthopaedic Sports Medicine. Philadelphia, Pa: Lippincott Williams & Wilkins; 2000:805\u2013817."},{"key":"bibr7-0363546507312167","doi-asserted-by":"crossref","first-page":"153","DOI":"10.1097\/00003086-198807000-00019","volume":"232","author":"Ishikawa K","year":"1988","journal-title":"Clin Orthop Relat Res"},{"key":"bibr8-0363546507312167","doi-asserted-by":"publisher","DOI":"10.1177\/03635465020300051901"},{"key":"bibr9-0363546507312167","doi-asserted-by":"publisher","DOI":"10.1136\/bjsm.30.1.72"},{"key":"bibr10-0363546507312167","doi-asserted-by":"publisher","DOI":"10.1177\/036354659502300612"},{"key":"bibr11-0363546507312167","doi-asserted-by":"publisher","DOI":"10.1177\/036354659602400202"},{"key":"bibr12-0363546507312167","doi-asserted-by":"publisher","DOI":"10.3109\/17453679909000967"}],"container-title":["The American Journal of Sports Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/0363546507312167","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/0363546507312167","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/0363546507312167","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T09:42:08Z","timestamp":1777369328000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/0363546507312167"}},"subtitle":["Results of a New Allograft Technique for Chronic Reconstructions"],"short-title":[],"issued":{"date-parts":[[2007,11,30]]},"references-count":12,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2008,1]]}},"alternative-id":["10.1177\/0363546507312167"],"URL":"https:\/\/doi.org\/10.1177\/0363546507312167","relation":{},"ISSN":["0363-5465","1552-3365"],"issn-type":[{"value":"0363-5465","type":"print"},{"value":"1552-3365","type":"electronic"}],"subject":[],"published":{"date-parts":[[2007,11,30]]}}}