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dc.contributor.authorWhitehead, Timothy-
dc.contributor.otherMacri, Erin-
dc.contributor.otherCulvenor, Adam-
dc.contributor.otherMorris, Hayden-
dc.contributor.otherRussell, Trevor-
dc.contributor.otherKhan, Karim-
dc.contributor.otherCrossley, Kay-
dc.identifier.citationKnee Surg Sports Traumatol Arthrosc. 2017 May 9en_US
dc.description.abstractPURPOSE: Patellofemoral osteoarthritis (PFOA) occurs in approximately half of anterior cruciate ligament (ACL)-injured knees within 10-15 years of trauma. Risk factors for post-traumatic PFOA are poorly understood. Patellofemoral alignment and trochlear morphology may be associated with PFOA following ACL reconstruction (ACLR), and understanding these relationships, particularly early in the post-surgical time period, may guide effective early intervention strategies. In this study, patellofemoral alignment and trochlear morphology were investigated in relation to radiographic features of early PFOA 1-year post-ACLR. METHODS: Participants (aged 18-50 years) had undergone ACLR approximately 1 year prior to being assessed. Early PFOA was defined as presence of a definite patellofemoral osteophyte on lateral or skyline radiograph. Sagittal and axial plane alignment and trochlear morphology were estimated using MRI. Using logistic regression, the relationship between alignment or morphology and presence of osteophytes was evaluated. RESULTS: Of 111 participants [age 30 ± 8.5; 41 (37%) women], 19 (17%) had definite osteophytes, only two of whom had had patellofemoral chondral lesions noted intra-operatively. One measure of patellar alignment (bisect offset OR 1.1 [95% confidence interval 1.0, 1.2]) and two measures of trochlear morphology (sulcus angle OR 1.1 [1.0, 1.2], trochlear angle OR 1.2 [1.0, 1.5]) were associated with patellofemoral osteophytes. CONCLUSIONS: Patellofemoral malalignment and/or altered trochlear morphology were associated with PFOA 1 year following ACLR compared to individuals post-ACLR without these features. Clarifying the role of alignment and morphology in post-traumatic PFOA may contribute to improving early intervention strategies aimed at secondary prevention. LEVEL OF EVIDENCE: IV.en_US
dc.subjectAnterior Cruciate Ligamenten_US
dc.subjectPatellofemoral Jointen_US
dc.subjectPatellofemoral Osteoarthritisen_US
dc.subjectACL Reconstructionen_US
dc.subjectPatellofemoral Alignmenten_US
dc.subjectTrochlear Morphologyen_US
dc.subjectPost-Traumatic PFOAen_US
dc.subjectPost-Traumatic Patellofemoral Osteoarthritisen_US
dc.subjectEarly Intervention Strategiesen_US
dc.subjectRadiographic Featuresen_US
dc.subjectMusculoskeletal Clinical Institute, Epworth HealthCare, Victoria, Australiaen_US
dc.titleLateral displacement, sulcus angle and trochlear angle are associated with early patellofemoral osteoarthritis following anterior cruciate ligament reconstruction.en_US
dc.typeJournal Articleen_US
dc.identifier.journaltitleKnee Surgery, Sports Traumatology, Arthroscopyen_US
dc.description.affiliatesDepartment of Family Practice, Centre for Hip Health and Mobility, University of British Columbia, 2635 Laurel Street, Vancouver, BC, V5Z 1M9, Canada.en_US
dc.description.affiliatesInstitute of Anatomy, Paracelsus Medical University Salzburg, Strubergasse 21, 5020, Salzburg, Austria.en_US
dc.description.affiliatesSchool of Allied Health, College of Science, Health and Engineering, La Trobe University, Bundoora, VIC, 3086, Australia.en_US
dc.description.affiliatesPark Clinic Orthopaedics, St. Vincent's Private Hospital, 166 Gipps Street, East Melbourne, VIC, 3002, Australia.en_US
dc.description.affiliatesDepartment of Physiotherapy, School of Health and Rehabilitation Sciences, The University of Queensland, St. Lucia, QLD, 4072, Australia.en_US
dc.description.affiliatesSchool of Allied Health, College of Science, Health and Engineering, La Trobe University, Bundoora, VIC, 3086, Australia.en_US
dc.type.studyortrialCross-Sectional Studyen_US
Appears in Collections:Musculoskeletal

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