Osgood-Schlatter disease (OSD) is a chronic fatigue injury due to repeated microtrauma at the patellar ligament insertion onto the tibial tuberosity, ...×ArticlesLogInCasesSignUpCoursesQuizDonateAbout×MenuSearchADVERTISEMENT:Radiopaediaisfreethankstooursupportersandadvertisers.BecomeaGoldSupporterandseenoads.ArticlesCasesCoursesLogInLoginSignup{"url":"/signup-modal-props.json?lang=us\u0026email="}ArticlesCasesCoursesQuizAboutRecentEditsGoad-freeSearchADVERTISEMENT:Supportersseefewer/noadsOsgood-SchlatterdiseaseDrYahyaBaba◉andAssocProfFrankGaillard◉◈etal.Osgood-Schlatterdisease (OSD)isachronicfatigueinjuryduetorepeatedmicrotraumaatthepatellarligamentinsertionontothetibialtuberosity,usuallyaffectingboysbetweenages10-15years.Onthispage:Article:EpidemiologyClinicalpresentationRadiographicfeaturesTreatmentandprognosisHistoryandetymologyDifferentialdiagnosisRelatedarticlesReferencesImages:CasesandfiguresImagingdifferentialdiagnosisEpidemiologyOsgood-Schlatterdiseaseisseeninactiveadolescents,especiallythosewhojumpandkick.Itisbilateralin25-50%ofpatients1-3.Thetypicalageofonsetinfemalesmaybeslightlyearlier(boys10-15years;girls8-12years) 8.ClinicalpresentationClinically,patientspresentwithpainandswellingoverthetibialtuberosityexacerbatedwithexercise.RadiographicfeaturesPlainradiographSofttissueswellingwithlossofthesharpmarginsofthepatellartendonistheearliestsignsintheacutephase;thus,acompatiblehistoryisalsoessentialinmakingthediagnosis.Bonefragmentationatthetibialtuberositymaybeevident3to4weeksaftertheonset.Itisimportantnottoequateisolated'fragmentation'oftheapophysiswithOSD,astheremaywellbesecondaryossificationcenters.UltrasoundUltrasoundexaminationofthepatellartendoncandepictthesameanatomicabnormalitiesascanplainradiographs,CTscans,andmagneticresonanceimages. ThesonographicappearancesofOsgood-Schlatterdiseaseinclude3:swellingoftheunossifiedcartilageandoverlyingsofttissuesfragmentationandirregularityoftheossificationcenterwithreducedinternalechogenicity thickeningofthedistal