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Seventy-six percent were categorized as satisfactory. Ninety-two percent were content with their results, while only 4% were unsatis fied. Ninety-three percent of the patients had no signif icant pain and 95% had no giving way postreconstruc tion. Ninety-two percent had no more than a mild functional deficit. Eighty-seven percent and 90% of the patients had no significant Lachman or pivot shift by examination, respectively. Our results showed no in crease in failure over time (1 to 10 years), although those operated on during the initial 5 years showed more radiographic degenerative changes. Plotting our results in classification systems of other authors yielded success rates as good as or better than those using our own criteria. An objective means by which to quan tify laxity did not reliably correlate with the quantifying of laxity made by physical examination. Only the lack of a formal rehabilitation program greater than 4 months postoperatively and repaired tears of the medial or lateral collateral ligaments proved to be significant risk factors for poor recovery.<\/jats:p>","DOI":"10.1177\/036354659101900505","type":"journal-article","created":{"date-parts":[[2007,6,21]],"date-time":"2007-06-21T20:46:52Z","timestamp":1182458812000},"page":"447-457","source":"Crossref","is-referenced-by-count":179,"title":["Anterior cruciate ligament reconstruction using quadriceps patellar tendon graft"],"prefix":"10.1177","volume":"19","author":[{"given":"James G.","family":"Howe","sequence":"first","affiliation":[{"name":"Department of Orthopaedics & Rehabilitation, McClure Musculoskeletal Research Center, University of Vermont College of Medicine, Burlington, Vermont"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Robert J.","family":"Johnson","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics & Rehabilitation, McClure Musculoskeletal Research Center, University of Vermont College of Medicine, Burlington, Vermont"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael J.","family":"Kaplan","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics & Rehabilitation, McClure Musculoskeletal Research Center, University of Vermont College of Medicine, Burlington, Vermont"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Braden","family":"Fleming","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics & Rehabilitation, McClure Musculoskeletal Research Center, University of Vermont College of Medicine, Burlington, Vermont"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Markku","family":"Jarvinen","sequence":"additional","affiliation":[{"name":"Department of Surgery, Tampere University Hospital, Tampere, Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[1991,9,1]]},"reference":[{"key":"atypb1","unstructured":"Ahlback S. 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