2021
Patient-Reported Activity Levels Correlate With Early Cartilage Degeneration After Anterior Cruciate Ligament Reconstruction
Friedman JM, Su F, Zhang AL, Allen CR, Feeley BT, Souza R, Li X, Ma CB, Lansdown DA. Patient-Reported Activity Levels Correlate With Early Cartilage Degeneration After Anterior Cruciate Ligament Reconstruction. The American Journal Of Sports Medicine 2021, 49: 442-449. PMID: 33395319, DOI: 10.1177/0363546520980431.Peer-Reviewed Original ResearchConceptsAnterior cruciate ligament reconstructionMarx activity levelMarx activity scoreCruciate ligament reconstructionMarx scoresCartilage degenerationMagnetic resonance imagingMedial compartmentEarly cartilage degenerationLigament reconstructionPosttraumatic osteoarthritisActivity scoreActivity levelsOrgan Magnetic Resonance Imaging ScoreOsteoarthritis Outcome Score (KOOS) scoresMagnetic Resonance Imaging ScorePre-existing arthritisPatient-reported outcomesLevel of evidenceSoft tissue graftsFisher's exact testMedial compartment degenerationPositive predictive valueSpearman rank testCartilage degenerative changes
2020
Quantitative imaging of anterior cruciate ligament (ACL) graft demonstrates longitudinal compositional changes and relationships with clinical outcomes at 2 years after ACL reconstruction
Lansdown DA, Xiao W, Zhang AL, Allen CR, Feeley BT, Li X, Majumdar S, Ma CB. Quantitative imaging of anterior cruciate ligament (ACL) graft demonstrates longitudinal compositional changes and relationships with clinical outcomes at 2 years after ACL reconstruction. Journal Of Orthopaedic Research® 2020, 38: 1289-1295. PMID: 31868948, PMCID: PMC7433779, DOI: 10.1002/jor.24572.Peer-Reviewed Original Research
1999
Injury and reconstruction of the anterior cruciate ligament and knee osteoarthritis
Allen C, Livesay G, Wong E, Woo S. Injury and reconstruction of the anterior cruciate ligament and knee osteoarthritis. Osteoarthritis And Cartilage 1999, 7: 110-121. PMID: 10367019, DOI: 10.1053/joca.1998.0166.Peer-Reviewed Original ResearchConceptsAnterior cruciate ligamentSitu forcesBasic mechanical propertiesRobotic/UFS testing systemKnee kinematicsACL reconstructionTesting systemKnee osteoarthritisACL graftCruciate ligamentUniversal force-moment sensor testing systemNon-contact mannerCadaveric kneesMechanical propertiesLoading conditionsViscoelastic characteristicsAnterior tibial loadMuscle loading conditionsFreedom knee kinematicsHuman cadaveric kneesQuadruple semitendinosusGraft functionPL bundleAM bundleGraft forces