{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,20]],"date-time":"2026-10-20T01:02:28Z","timestamp":1792458148173,"version":"4.5.0"},"reference-count":15,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2002,7,1]],"date-time":"2002-07-01T00:00:00Z","timestamp":1025481600000},"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":[[2002,7]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Heel-height difference has been used to detect subtle knee flexion contractures, but the effects of thigh circumference differences and patient positioning during testing have not been evaluated.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Hypothesis<\/jats:title>\n                    <jats:p>Differences in thigh circumference measurements and whether the patient's patellae are on or off the examination table during heel-height difference measurement will not affect the accuracy of detecting knee flexion contracture.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Study Design<\/jats:title>\n                    <jats:p>Prospective cohort study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Bilateral knee range of motion, prone heel-height difference with the patellae on and off the table, and thigh circumference at 5 and 15 cm proximal to the proximal pole of the patella were measured by one investigator on 50 consecutive patients who had undergone unilateral anterior cruciate ligament reconstruction.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>A high degree of correlation was demonstrated between the heel-height difference and the standard range of motion measurement. Differences in thigh girth and patellar position did not statistically affect the accuracy of the heel-height difference as an indicator of knee flexion contracture.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Heel-height difference is a valid method of documenting knee flexion contractures. Compared with traditional goniometer assessment, this test is a more meaningful and easier way for detecting subtle knee flexion contractures of less than 10\u00b0.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/03635465020300040501","type":"journal-article","created":{"date-parts":[[2017,7,18]],"date-time":"2017-07-18T11:32:46Z","timestamp":1500377566000},"page":"479-482","source":"Crossref","is-referenced-by-count":33,"title":["Reliability of Heel-Height Measurement for Documenting Knee Extension Deficits"],"prefix":"10.1177","volume":"30","author":[{"given":"Theodore F.","family":"Schlegel","sequence":"first","affiliation":[{"name":"Steadman Hawkins Denver Clinics, Denver and Vail, Vail, Colorado"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martin","family":"Boublik","sequence":"additional","affiliation":[{"name":"Steadman Hawkins Denver Clinics, Denver and Vail, Vail, Colorado"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Richard J.","family":"Hawkins","sequence":"additional","affiliation":[{"name":"Steadman Hawkins Denver Clinics, Denver and Vail, Vail, Colorado"},{"name":"Steadman Hawkins Sports Medicine Foundation, Vail, Colorado"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. Richard","family":"Steadman","sequence":"additional","affiliation":[{"name":"Steadman Hawkins Denver Clinics, Denver and Vail, Vail, Colorado"},{"name":"Steadman Hawkins Sports Medicine Foundation, Vail, Colorado"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2002,7,1]]},"reference":[{"key":"bibr1-03635465020300040501","doi-asserted-by":"publisher","DOI":"10.4159\/harvard.9780674491892"},{"key":"bibr2-03635465020300040501","doi-asserted-by":"publisher","DOI":"10.1093\/ptj\/67.2.192"},{"key":"bibr3-03635465020300040501","unstructured":"GreeneWB, HeckmanJD (eds): The Clinical Measurement of Joint Motion. 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New York, Raven Press, 1990, pp 505\u2013520"},{"key":"bibr10-03635465020300040501","doi-asserted-by":"publisher","DOI":"10.1177\/036354659001800313"},{"key":"bibr11-03635465020300040501","doi-asserted-by":"publisher","DOI":"10.1177\/036354659602400625"},{"key":"bibr12-03635465020300040501","doi-asserted-by":"publisher","DOI":"10.1177\/036354659101900402"},{"key":"bibr13-03635465020300040501","first-page":"165","volume":"166","author":"NFIII Sprague","year":"1982","journal-title":"Clin Orthop"},{"key":"bibr14-03635465020300040501","doi-asserted-by":"crossref","first-page":"184","DOI":"10.1097\/00003086-199004000-00025","volume":"253","author":"Strum GM","year":"1990","journal-title":"Clin Orthop"},{"key":"bibr15-03635465020300040501","doi-asserted-by":"publisher","DOI":"10.1093\/ptj\/71.2.90"}],"container-title":["The American Journal of Sports Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/03635465020300040501","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/03635465020300040501","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/03635465020300040501","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T09:39:22Z","timestamp":1777369162000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/03635465020300040501"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2002,7]]},"references-count":15,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2002,7]]}},"alternative-id":["10.1177\/03635465020300040501"],"URL":"https:\/\/doi.org\/10.1177\/03635465020300040501","relation":{},"ISSN":["0363-5465","1552-3365"],"issn-type":[{"value":"0363-5465","type":"print"},{"value":"1552-3365","type":"electronic"}],"subject":[],"published":{"date-parts":[[2002,7]]}}}