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dc.contributor.authorAksu, Neslihan
dc.contributor.authorAtansay, Vefa
dc.contributor.authorKaralok, Isik
dc.contributor.authorAksu, Taner
dc.contributor.authorKara, Ayhan Nedim
dc.contributor.authorHamzaoglu, Azmi
dc.date.accessioned2021-06-10T19:38:35Z
dc.date.available2021-06-10T19:38:35Z
dc.date.issued2021
dc.identifier.issn2325-9671
dc.identifier.urihttps://doi.oeg/10.1177/2325967120985229
dc.identifier.urihttp://hdl.handle.net/11446/4379
dc.descriptionPubMed: 33796584en_US
dc.descriptionWOS:000629761300001en_US
dc.description.abstractBackground: Jumper's knee is a type of tendinopathy affecting the distal insertion of the quadriceps tendon (25% of cases) or the patellar tendon. It has been shown that frontal-plane measurements, such as genu valgum, genu varum, an increased quadriceps angle, a protuberant tibial tuberosity, patella alta, and short hamstring muscles, may be related to jumper's knee. Purpose: To investigate the effects of tibiofemoral rotational angles and patellofemoral (PF) angles on the development of jumper's knee in professional folk dancers. Study Design: Case-control study; Level of evidence, 3. Methods: We examined 26 dancers (16 male, 10 female) with knee pain using magnetic resonance imaging (MRI), for a total of 32 knees. Of the knees, 21 with quadriceps tendinopathy (QT) and 7 with patellar tendinopathy (PT) were detected. Using MRI scans, we measured PF angles (PF sulcus angle, lateral PF angle, patellar tilt angle, lateral trochlear inclination angle, lateral patellar tilt angle, and PF congruence angle) and tibiofemoral rotational angles (condylar twist angle, posterior condylar angle, femoral Insall angle, tibial Insall angle, posterior tibiofemoral angle, and angle between the Whiteside line and posterior femoral condylar line) and noted specifics such as patella alta, patella baja, and the Wiberg classification of the patellar shape between the patients with versus without QT and between patients with versus without PT to understand if there was any relationship with tendinopathy. Results: No statistically significant difference was observed in age, sex, patella alta, or the Wiberg classification between the QT groups (with vs without) and between the PT groups (with vs without) (P > .05). Having QT was found to be significantly associated with the PF sulcus angle (P = .009), and having PT was found to be significantly associated with the femoral Insall angle (P = .029). Conclusion: Jumper's knee was found to be associated with anatomic variations of the PF sulcus angle and rotation of the patellar tendon in relation to the femur (femoral Insall angle) on axial MRI scans in professional dancers. Unlike those of other athletes, dancers' knees are exposed more to external rotation forces because of turnout, and this can be the cause of jumper's knee.en_US
dc.language.isoengen_US
dc.publisherSage Publications Incen_US
dc.identifier.doi10.1177/2325967120985229en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectjumper&#8217en_US
dc.subjects kneeen_US
dc.subjectpatellofemoral anglesen_US
dc.subjecttibiofemoral rotation anglesen_US
dc.subjectdancer injuryen_US
dc.subjectturnouten_US
dc.subjectpatellar tendinopathyen_US
dc.subjectquadriceps tendinopathyen_US
dc.titleRelationship of Patellofemoral Angles and Tibiofemoral Rotational Angles With Jumper's Knee in Professional Dancers: An MRI Analysisen_US
dc.typearticleen_US
dc.relation.journalOrthopaedic Journal Of Sports Medicineen_US
dc.department[0-Belirlenecek]en_US
dc.identifier.issue3en_US
dc.identifier.volume9en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.institutionauthor[0-Belirlenecek]
dc.department-temp[Aksu, Neslihan; Atansay, Vefa; Karalok, Isik; Aksu, Taner; Kara, Ayhan Nedim; Hamzaoglu, Azmi] Demiroglu Bilim Univ, Istanbul, Turkey; [Aksu, Neslihan; Atansay, Vefa; Kara, Ayhan Nedim] Demiroglu Bilim Univ, Dept Orthopaed & Traumatol, Fac Med, Abide I Hurriyet Cad 164, TR-34381 Istanbul, Turkey; [Karalok, Isik] Demiroglu Bilim Univ, Dept Radiol, Fac Med, Istanbul, Turkey; [Aksu, Taner] Istanbul Neuroorthopaed Clin, Istanbul, Turkey; [Hamzaoglu, Azmi] Istanbul Florence Nightingale Hosp, Orthopaed & Spine Ctr, Istanbul, Turkeyen_US


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