{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T00:50:54Z","timestamp":1784249454237,"version":"3.55.0"},"reference-count":22,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[1991,5,1]],"date-time":"1991-05-01T00:00:00Z","timestamp":673056000000},"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":[[1991,5]]},"abstract":"<jats:p>A 3 year study of 117 quadriceps contusions in West Point cadets was undertaken to document the effec tiveness of a three-phased therapy program to return these young athletes to full activity with a normal knee range of motion and without recurrence of injury. The treatment protocol of this study was modeled after the 1973 West Point study of Jackson and Feagin with two major changes: 1) resting the injured leg in flexion (versus extension) and 2) emphasizing early flexion exercises (versus extension). Classification of contu sions was based on knee range of motion at 12 to 24 hours after the injury (mild, &gt;90\u00b0; moderate, 45\u00b0 to 90\u00b0; severe, &lt;45\u00b0). The average disability time was 13 days for mild, 19 days for moderate, and 21 days for severe contusions. Myositis ossificans developed in 9% of cadets and was associated with five risk factors (knee motion less than 120\u00b0, injury occurring during football, previous quadriceps injury, delay in treatment greater than 3 days, and ipsilateral knee effusion).<\/jats:p>","DOI":"10.1177\/036354659101900316","type":"journal-article","created":{"date-parts":[[2007,6,21]],"date-time":"2007-06-21T20:46:52Z","timestamp":1182458812000},"page":"299-304","source":"Crossref","is-referenced-by-count":113,"title":["Quadriceps contusions"],"prefix":"10.1177","volume":"19","author":[{"given":"Jack B.","family":"Ryan","sequence":"first","affiliation":[{"name":"Orthopaedic and Physical Therapy Services at the United States Military Academy, West Point, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James H.","family":"Wheeler","sequence":"additional","affiliation":[{"name":"Orthopaedic and Physical Therapy Services at the United States Military Academy, West Point, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"William J.","family":"Hopkinson","sequence":"additional","affiliation":[{"name":"Orthopaedic and Physical Therapy Services at the United States Military Academy, West Point, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert A.","family":"Arciero","sequence":"additional","affiliation":[{"name":"Orthopaedic and Physical Therapy Services at the United States Military Academy, West Point, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keith R.","family":"Kolakowski","sequence":"additional","affiliation":[{"name":"Orthopaedic and Physical Therapy Services at the United States Military Academy, West Point, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[1991,5,1]]},"reference":[{"key":"atypb1","doi-asserted-by":"publisher","DOI":"10.1016\/S0278-5919(20)31437-X"},{"key":"atypb2","doi-asserted-by":"publisher","DOI":"10.1097\/00000658-191303000-00001"},{"key":"atypb3","unstructured":"Dehne E., Torp RP Treatment of joint Injuries by immediate mobilization Based upon the spmal adaptation concept Clin Orthop 77 218-232, 1971"},{"key":"atypb4","doi-asserted-by":"publisher","DOI":"10.1097\/00005373-196611000-00004"},{"key":"atypb5","doi-asserted-by":"publisher","DOI":"10.1016\/S0363-5023(84)80014-3"},{"key":"atypb6","doi-asserted-by":"publisher","DOI":"10.1097\/00005373-197005000-00005"},{"key":"atypb7","doi-asserted-by":"publisher","DOI":"10.1097\/00007611-196211000-00011"},{"key":"atypb8","doi-asserted-by":"crossref","unstructured":"Ivey M. Myositis ossificans of the thigh following manipulation of the knee A case report Clin Orthop 198 102-105, 1985","DOI":"10.1097\/00003086-198509000-00015"},{"key":"atypb9","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-197355010-00009"},{"key":"atypb10","doi-asserted-by":"publisher","DOI":"10.1177\/036354657600400304"},{"key":"atypb11","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-197860080-00012"},{"key":"atypb12","doi-asserted-by":"publisher","DOI":"10.1016\/S0197-0070(85)80054-1"},{"key":"atypb13","doi-asserted-by":"publisher","DOI":"10.1148\/96.2.301"},{"key":"atypb14","doi-asserted-by":"crossref","unstructured":"Rooser B. Quadriceps contusion with compartment syndrome Evacuation of hematoma in 2 cases Acta Orthop Scand 58 170-171, 1987","DOI":"10.3109\/17453678709146462"},{"key":"atypb15","doi-asserted-by":"crossref","unstructured":"Rothwell AG Quadnceps hematoma A prospective clinical study Clin Orthop 171 97-103, 1982","DOI":"10.1097\/00003086-198211000-00017"},{"key":"atypb16","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(72)90004-9"},{"key":"atypb17","doi-asserted-by":"crossref","unstructured":"Ryan AJ Quadnceps strain, rupture and charlie horse. Med Sci Sports 1 106-111,1969","DOI":"10.1249\/00005768-196906000-00010"},{"key":"atypb18","doi-asserted-by":"crossref","unstructured":"Soffer A. Chelation clinics. An abuse of the physician's freedom of choice Chest 86 157-158, 1984","DOI":"10.1378\/chest.86.2.157"},{"key":"atypb19","doi-asserted-by":"crossref","unstructured":"Walton M., Rothwell AG Reactions of thigh tissues of sheep to blunt trauma Clin Orthop 176 273-281, 1983","DOI":"10.1097\/00003086-198306000-00040"},{"key":"atypb20","doi-asserted-by":"publisher","DOI":"10.7326\/0003-4819-74-6-933"},{"key":"atypb21","doi-asserted-by":"publisher","DOI":"10.1097\/00005373-196405000-00008"},{"key":"atypb22","doi-asserted-by":"publisher","DOI":"10.1016\/S0278-5919(20)31445-9"}],"container-title":["The American Journal of Sports Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/036354659101900316","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/036354659101900316","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T09:36:57Z","timestamp":1777369017000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/036354659101900316"}},"subtitle":["West Point update"],"short-title":[],"issued":{"date-parts":[[1991,5]]},"references-count":22,"journal-issue":{"issue":"3","published-print":{"date-parts":[[1991,5]]}},"alternative-id":["10.1177\/036354659101900316"],"URL":"https:\/\/doi.org\/10.1177\/036354659101900316","relation":{},"ISSN":["0363-5465","1552-3365"],"issn-type":[{"value":"0363-5465","type":"print"},{"value":"1552-3365","type":"electronic"}],"subject":[],"published":{"date-parts":[[1991,5]]}}}