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
2019
Preoperative IDEAL (Iterative Decomposition of Echoes of Asymmetrical Length) magnetic resonance imaging rotator cuff muscle fat fractions are associated with rotator cuff repair outcomes
Lansdown DA, Morrison C, Zaid MB, Patel R, Zhang AL, Allen CR, Feeley BT, Ma CB. Preoperative IDEAL (Iterative Decomposition of Echoes of Asymmetrical Length) magnetic resonance imaging rotator cuff muscle fat fractions are associated with rotator cuff repair outcomes. Journal Of Shoulder And Elbow Surgery 2019, 28: 1936-1941. PMID: 31371160, DOI: 10.1016/j.jse.2019.05.018.Peer-Reviewed Original ResearchConceptsRotator cuff repairPostoperative PROMIS scoresPROMIS scoresFatty infiltrationCuff repairFat fractionRotator cuff muscle fatty infiltrationRotator cuff repair outcomesOnly significant independent predictorArthroscopic rotator cuff repairPreoperative fatty infiltrationInferior clinical outcomesSignificant independent predictorsIntramuscular fat fractionMuscle fatty infiltrationMuscle fat fractionMagnetic resonance imagingQuantitative magnetic resonance imagingMagnetic resonance imaging sequencePostoperative outcomesIndependent predictorsClinical outcomesTear sizePatientsResonance imagingPartial Transphyseal Anterior Cruciate Ligament Reconstruction: Clinical, Functional, and Radiographic Outcomes
Chambers CC, Monroe EJ, Allen CR, Pandya NK. Partial Transphyseal Anterior Cruciate Ligament Reconstruction: Clinical, Functional, and Radiographic Outcomes. The American Journal Of Sports Medicine 2019, 47: 1353-1360. PMID: 30995077, DOI: 10.1177/0363546519836423.Peer-Reviewed Original ResearchConceptsMechanical lateral distal femoral angleMedial proximal tibial angleTransphyseal ACL reconstructionMechanical axis deviationACL reconstructionGraft failureGrowth disturbanceReoperation rateACL injuryRadiographic outcomesFunctional outcomePediatric International Knee Documentation Committee scoreInternational Knee Documentation Committee scoreSubsequent revision ACL reconstructionAnterior cruciate ligament injuryLateral distal femoral angleOptimal reconstruction techniquePostoperative growth disturbanceGraft failure rateCruciate ligament injuryGood functional outcomeProximal tibial angleSubset of patientsRevision ACL reconstructionDistal femoral angle
2016
Accuracy of MRI evaluation of meniscus tears in the setting of ACL injuries
Dufka FL, Lansdown DA, Zhang AL, Allen CR, Ma CB, Feeley BT. Accuracy of MRI evaluation of meniscus tears in the setting of ACL injuries. The Knee 2016, 23: 460-464. PMID: 26917035, DOI: 10.1016/j.knee.2016.01.018.Peer-Reviewed Original ResearchConceptsMagnetic resonance imagingLateral meniscus tearsMedial meniscus tearPre-operative magnetic resonance imagingNegative predictive valuePositive predictive valueACL reconstructionMeniscus tearsACL injuryPredictive valueAnterior cruciate ligament reconstructionNPV of MRIConcomitant meniscus injuryDiagnostic performancePrimary ACL reconstructionCruciate ligament reconstructionPre-operative detectionHigh diagnostic performanceOperative interventionACL tearsLigament reconstructionOperative treatmentInitial injuryMRI evaluationMeniscus injury
2014
A comprehensive in vivo kinematic, quantitative MRI and functional evaluation following ACL reconstruction — A comparison between mini-two incision and anteromedial portal femoral tunnel drilling
Lansdown DA, Allen C, Zaid M, Wu S, Subburaj K, Souza R, Feeley BT, Li X, Ma CB. A comprehensive in vivo kinematic, quantitative MRI and functional evaluation following ACL reconstruction — A comparison between mini-two incision and anteromedial portal femoral tunnel drilling. The Knee 2014, 22: 547-553. PMID: 25982298, PMCID: PMC4472567, DOI: 10.1016/j.knee.2014.12.005.Peer-Reviewed Original ResearchConceptsAnteromedial portal techniqueACL reconstructionFemoral tunnel drillingMT groupContralateral kneeNormal kneesEarly cartilage degenerationKnee kinematicsCartilage degenerationMarx Activity Rating ScaleTunnel drillingAM groupCentral medial tibiaKOOS symptom scoresPatient's contralateral kneeSignificant early differencesAnatomic ACL reconstructionActivity Rating ScaleNormal knee kinematicsKOOS surveysSymptom scoresFemoral tunnelControl subjectsTibial positionPortal techniqueCartilage MRI relaxation times after arthroscopic partial medial meniscectomy reveal localized degeneration
Souza RB, Wu SJ, Morse LJ, Subburaj K, Allen CR, Feeley BT. Cartilage MRI relaxation times after arthroscopic partial medial meniscectomy reveal localized degeneration. Knee Surgery, Sports Traumatology, Arthroscopy 2014, 23: 188-197. PMID: 24792070, DOI: 10.1007/s00167-014-2997-2.Peer-Reviewed Original ResearchConceptsArthroscopic partial meniscectomyPartial meniscectomyWeight-bearing regionsTibiofemoral kinematicsArthroscopic partial medial meniscectomyPost-surgical MRIPartial medial meniscectomyLateral tibial plateauCartilage relaxation timesMedial femoral condyleAbnormal tibiofemoral kinematicsMRI relaxation timesT2 relaxation time mappingSignificant elevationMedial meniscectomyPosterior hornTibial plateauEarly changesTimes elevationMeniscectomyFemoral condyleKneeMonthsResectionT-test
2013
Differences in Mechanisms of Failure, Intraoperative Findings, and Surgical Characteristics Between Single- and Multiple-Revision ACL Reconstructions
Chen JL, Allen CR, Stephens TE, Haas AK, Huston LJ, Wright RW, Feeley BT, Albright J, Amendola A, Anderson A, Andrish J, Annunziata C, Arciero R, Bach B, Baker C, Bartolozzi A, Baumgarten K, Bechler J, Berg J, Bernas G, Brockmeier S, Brophy R, Bush-Joseph C, Butler J, Campbell J, Carey J, Carpenter J, Cole B, Cooper D, Cooper J, Cox C, Creighton R, Dahm D, David T, DeBerardino T, Dunn W, Flanigan D, Frederick R, Ganley T, Gatt C, Gecha S, Giffin J, Hame S, Hannafin J, Harner C, Harris N, Hechtman K, Hershman E, Hoellrich R, Hosea T, Johnson D, Johnson T, Jones M, Kaeding C, Kamath G, Klootwyk T, Lantz B, Levy B, Ma C, Maiers G, Mann B, Marx R, Matava M, Mathien G, McAllister D, McCarty E, McCormack R, Miller B, Nissen C, O’Neill D, Owens M, Parker R, Purnell M, Ramappa A, Rauh M, Rettig A, Sekiya J, Shea K, Sherman O, Slauterbeck J, Smith M, Spang J, Spindler K, Stuart M, Svoboda L, Taft T, Tenuta C, Tingstad E, Vidal A, Viskontas D, White R, Williams J, Wolcott M, Wolf B, York J. Differences in Mechanisms of Failure, Intraoperative Findings, and Surgical Characteristics Between Single- and Multiple-Revision ACL Reconstructions. The American Journal Of Sports Medicine 2013, 41: 1571-1578. PMID: 23698386, PMCID: PMC3839418, DOI: 10.1177/0363546513487980.Peer-Reviewed Original ResearchConceptsMarx activity levelACL reconstructionChondral injuriesRecurrent injuryPatellofemoral compartmentCommon causeActivity levelsAnterior cruciate ligament reconstructionACL graft injuryCruciate ligament reconstructionPrimary outcome variableCase-control studyGradual-onset injuriesLevel of evidenceFirst-time revisionsGraft injuryAssociated injuriesSurgical characteristicsIntraoperative findingsLigament reconstructionPrimary revisionGraft selectionGraft typeMeniscal injurySudden onset
2011
Patients' attitudes and factors in their selection of grafts for anterior cruciate ligament reconstruction
Cheung SC, Allen CR, Gallo RA, Benjamin C, Feeley BT. Patients' attitudes and factors in their selection of grafts for anterior cruciate ligament reconstruction. The Knee 2011, 19: 49-54. PMID: 21211979, DOI: 10.1016/j.knee.2010.11.009.Peer-Reviewed Original ResearchMeSH KeywordsAdultAnterior Cruciate LigamentAnterior Cruciate Ligament InjuriesAttitude of Health PersonnelChoice BehaviorFemaleHumansKnee InjuriesMalePatient Acceptance of Health CarePhysician's RolePlastic Surgery ProceduresProstheses and ImplantsRetrospective StudiesTransplantation, AutologousTransplantation, HomologousConceptsGraft choiceSurgeon recommendationACL reconstructionAnterior cruciate ligament reconstructionCruciate ligament reconstructionHalf of patientsSelection of graftsDonor site morbidityMean followOlder patientsLigament reconstructionMedical websitesPatients' attitudesPatientsSite morbidityDifferent graftsGraftAllograftsDemographic factorsLikert scaleUrban settingsHigh levelsMorbidityFactorsRecommendations
2010
Descriptive Epidemiology of the Multicenter ACL Revision Study (MARS) Cohort
Wright R, Huston L, Spindler K, Dunn W, Haas A, Allen C, Cooper D, DeBerardino T, Lantz B, Mann B, Stuart M. Descriptive Epidemiology of the Multicenter ACL Revision Study (MARS) Cohort. The American Journal Of Sports Medicine 2010, 38: 1979-1986. PMID: 20889962, PMCID: PMC3655411, DOI: 10.1177/0363546510378645.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAnterior Cruciate LigamentAnterior Cruciate Ligament InjuriesCanadaChildCohort StudiesCross-Sectional StudiesFemaleHumansKnee InjuriesMaleMiddle AgedMultivariate AnalysisOrthopedic ProceduresOutcome Assessment, Health CareProspective StudiesReoperationSports MedicineSurveys and QuestionnairesTreatment FailureUnited StatesYoung AdultConceptsRevision ACL reconstructionPatient demographicsACL reconstructionGraft choiceWorse outcomesRevision anterior cruciate ligament reconstructionMulticenter prospective longitudinal studyAnterior cruciate ligament reconstructionPatient-based outcome measuresConcomitant knee injuriesCruciate ligament reconstructionInstitutional review board approvalIntra-articular injuriesTime of injuryCross-sectional studyLevel of evidenceProspective longitudinal studyReview board approvalACL reconstruction methodsReconstruction cohortTraumatic reinjuriesPrevious graftProspective cohortClinical featuresClinical outcomes
2005
Neuromuscular and Biomechanical Adaptations of Patients with Isolated Deficiency of the Posterior Cruciate Ligament
Fontboté CA, Sell TC, Laudner KG, Haemmerle M, Allen CR, Margheritini F, Lephart SM, Harner CD. Neuromuscular and Biomechanical Adaptations of Patients with Isolated Deficiency of the Posterior Cruciate Ligament. The American Journal Of Sports Medicine 2005, 33: 982-989. PMID: 15888720, DOI: 10.1177/0363546504271966.Peer-Reviewed Original ResearchConceptsDrop landing taskControl groupPosterior cruciate ligament injuriesPosterior cruciate ligament deficiencyCruciate ligament injuryCruciate ligament deficiencyPosterior cruciate ligamentVertical ground reaction force loading rateBiomechanical adaptationsGround reaction force loading rateKnee valgus momentGreater vertical ground reaction forceInstrumented laxityInvolved kneeVertical ground reaction forceGreater posterior displacementLigament deficiencyLigament injuryInvolved limbSurgical interventionUninvolved limbControl subjectsClinical laxityCruciate ligamentLaxity examination
2001
Potential complication of bioabsorbable screw fixation for osteochondritis dissecans of the knee
Scioscia T, Giffin J, Allen C, Harner C. Potential complication of bioabsorbable screw fixation for osteochondritis dissecans of the knee. Arthroscopy The Journal Of Arthroscopic And Related Surgery 2001, 17: 1-5. PMID: 11172259, DOI: 10.1053/jars.2001.17995.Peer-Reviewed Original ResearchConceptsBioabsorbable screw fixationOsteochondritis dissecansScrew fixationCartilage damageIntra-articular loose bodiesMedial femoral condyleAcute episodePotential complicationsArthroscopic examinationBioabsorbable screwsLoose bodiesTibial plateauFemoral condyleCase 1DissecansKneeScrew headScrewsFixationPainComplicationsPatientsSurgeryEffusionDamage