{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T00:51:51Z","timestamp":1792543911707,"version":"4.5.0"},"reference-count":56,"publisher":"SAGE Publications","issue":"9","license":[{"start":{"date-parts":[[2010,5,14]],"date-time":"2010-05-14T00:00:00Z","timestamp":1273795200000},"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":[[2010,9]]},"abstract":"<jats:p>Background: Abnormal 3-dimensional tibiofemoral joint kinematics have been identified in anterior cruciate ligament-reconstructed knees during functional gait tasks, which is suggested to directly affect risk of knee osteoarthritis. However, the extent to which similar high-risk abnormalities are present during more demanding maneuvers, such as single-legged hopping, is largely unknown.<\/jats:p>\n                  <jats:p>Hypothesis: When performing a single-legged forward hop landing, the reconstructed knee will demonstrate altered sagittal, frontal, and transverse plane kinematics compared with the contralateral limb.<\/jats:p>\n                  <jats:p>Study Design: Controlled laboratory study.<\/jats:p>\n                  <jats:p>Methods: High-speed biplane radiography was used to quantify bilateral 3-dimensional tibiofemoral joint kinematics in 9 subjects with unilaterally reconstructed anterior cruciate ligaments (mean time after surgery, 4 months) during 3 single-legged, forward hop landing trials. Mean subject-based initial foot contact and maximum stance (0-250 ms) values were calculated for each kinematic variable. Two-tailed paired t tests were subsequently applied to examine for the main effect of limb (reconstructed vs contralateral).<\/jats:p>\n                  <jats:p>Results: The reconstructed knees exhibited significantly greater extension ( P = .04), external tibial rotation ( P = .006), and medial tibial translation ( P = .02) than the contralateral knees at initial contact. Reconstructed knees underwent significantly greater maximum flexion ( P = .05), maximum external tibial rotation ( P = .01), and maximum anterior tibial translation ( P = .02). No significant differences existed between limbs for initial contact ( P = .65) or maximum adduction-abduction ( P = .55).<\/jats:p>\n                  <jats:p>Conclusion: Tibiofemoral joint kinematics of the anterior cruciate ligament-reconstructed knee are significantly different from those of the uninjured contralateral limb during a single-legged hop landing. This altered kinematic profile, in conjunction with the large impact loads associated with hopping, may further contribute to the risk of posttraumatic knee osteoarthritis.<\/jats:p>\n                  <jats:p>Clinical Relevance: Returning to sports involving dynamic single-legged landings at 4 months after anterior cruciate ligament reconstruction surgery may contribute to accelerated knee joint degeneration.<\/jats:p>","DOI":"10.1177\/0363546510365531","type":"journal-article","created":{"date-parts":[[2010,5,14]],"date-time":"2010-05-14T22:16:31Z","timestamp":1273875391000},"page":"1820-1828","source":"Crossref","is-referenced-by-count":107,"title":["Tibiofemoral Joint Kinematics of the Anterior Cruciate Ligament-Reconstructed Knee During a Single-Legged Hop Landing"],"prefix":"10.1177","volume":"38","author":[{"given":"Jessica M.","family":"Deneweth","sequence":"first","affiliation":[{"name":"Bone and Joint Center"},{"name":"School of Kinesiology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael J.","family":"Bey","sequence":"additional","affiliation":[{"name":"Bone and Joint Center"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Scott G.","family":"McLean","sequence":"additional","affiliation":[{"name":"School of Kinesiology"},{"name":"Bone and Joint Injury Prevention and Rehabilitation Center, University of Michigan, Ann Arbor, Michigan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Terrence R.","family":"Lock","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Henry Ford Hospital, Detroit, Michigan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patricia A.","family":"Kolowich","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Henry Ford Hospital, Detroit, Michigan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Scott","family":"Tashman","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2010,5,14]]},"reference":[{"key":"bibr1-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1177\/0363546504269937"},{"key":"bibr2-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1016\/S0268-0033(02)00098-0"},{"key":"bibr3-0363546510365531","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-200405000-00014"},{"key":"bibr4-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1016\/j.joca.2005.04.019"},{"key":"bibr5-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1002\/jor.20702"},{"key":"bibr6-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1097\/01.blo.0000197079.26600.09"},{"key":"bibr7-0363546510365531","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.H.01408"},{"key":"bibr8-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1097\/01.bor.0000240365.16842.4e"},{"key":"bibr9-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1023\/B:ABME.0000017541.82498.37"},{"key":"bibr10-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1177\/036354659502300611"},{"key":"bibr11-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.83B8.11320"},{"key":"bibr12-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1097\/00005768-200107000-00014"},{"key":"bibr13-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1177\/0363546505279913"},{"key":"bibr14-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1136\/bjsm.2008.055954"},{"key":"bibr15-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1177\/03635465010290011101"},{"key":"bibr16-0363546510365531","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-198062020-00013"},{"key":"bibr17-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1136\/bjsm.2008.052522"},{"key":"bibr18-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1249\/mss.0b013e31815cbb0e"},{"key":"bibr19-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-009-0870-5"},{"key":"bibr20-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1177\/03635465030310012401"},{"key":"bibr21-0363546510365531","doi-asserted-by":"publisher","DOI":"10.2165\/00007256-199927030-00001"},{"key":"bibr22-0363546510365531","author":"Gokeler A","journal-title":"Scand J Med Sci Sports"},{"key":"bibr23-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1016\/j.csm.2008.03.004"},{"key":"bibr24-0363546510365531","doi-asserted-by":"publisher","DOI":"10.2165\/00007256-200434040-00006"},{"key":"bibr25-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1016\/S0268-0033(01)00097-3"},{"key":"bibr26-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1016\/j.orthres.2004.08.006"},{"key":"bibr27-0363546510365531","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.E.00539"},{"key":"bibr28-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1080\/17453670710013924"},{"key":"bibr29-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1177\/0363546503261702"},{"key":"bibr30-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1177\/0363546507307396"},{"key":"bibr31-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1249\/mss.0b013e3180d47f0"},{"key":"bibr32-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1016\/0021-9290(87)90306-X"},{"key":"bibr33-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1519\/JSC.0b013e31816a86cd"},{"key":"bibr34-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1097\/JES.0b013e3181aa6669"},{"key":"bibr35-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1177\/0363546506290403"},{"key":"bibr36-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1097\/BLO.0b013e31802b4a59"},{"key":"bibr37-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2008.05.021"},{"key":"bibr38-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1016\/j.gaitpost.2006.07.003"},{"key":"bibr39-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1136\/bjsm.2008.056846"},{"key":"bibr40-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1097\/00042752-200603000-00005"},{"key":"bibr41-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1097\/01.bor.0000151406.64393.00"},{"key":"bibr42-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1007\/s001670000130"},{"key":"bibr43-0363546510365531","doi-asserted-by":"publisher","DOI":"10.3109\/17453678909154184"},{"key":"bibr44-0363546510365531","doi-asserted-by":"publisher","DOI":"10.2165\/00007256-200737070-00004"},{"key":"bibr45-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0838.2005.00505.x"},{"key":"bibr46-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1115\/1.1559896"},{"key":"bibr47-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1016\/j.orthres.2004.01.008"},{"key":"bibr48-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1177\/0363546503261709"},{"key":"bibr49-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1097\/BLO.0b013e31802bab3e"},{"key":"bibr50-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1016\/j.apmr.2008.07.030"},{"key":"bibr51-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1055\/s-2002-29074"},{"key":"bibr52-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-007-0427-4"},{"key":"bibr53-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1016\/S0268-0033(02)00170-5"},{"key":"bibr54-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-003-0400-9"},{"key":"bibr55-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1097\/BLO.0b013e31802ba45c"},{"key":"bibr56-0363546510365531","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2007.04.009"}],"container-title":["The American Journal of Sports Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/0363546510365531","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/0363546510365531","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/0363546510365531","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T09:42:02Z","timestamp":1777369322000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/0363546510365531"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2010,5,14]]},"references-count":56,"journal-issue":{"issue":"9","published-print":{"date-parts":[[2010,9]]}},"alternative-id":["10.1177\/0363546510365531"],"URL":"https:\/\/doi.org\/10.1177\/0363546510365531","relation":{},"ISSN":["0363-5465","1552-3365"],"issn-type":[{"value":"0363-5465","type":"print"},{"value":"1552-3365","type":"electronic"}],"subject":[],"published":{"date-parts":[[2010,5,14]]}}}