Osgood–Schlatter disease (OSD) is inflammation of the patellar ligament at the tibial tuberosity (apophysitis). ... It is characterized by a painful bump just ...Osgood–SchlatterdiseaseFromWikipedia,thefreeencyclopediaJumptonavigationJumptosearchInflammationofthepatellarligamentMedicalconditionOsgood–SchlatterDiseaseOthernamesApophysitisofthetibialtubercle,Lannelongue'sdisease,[1]osteochondrosisofthetibialtubercle[2]LateralviewX-rayofthekneedemonstratingfragmentationofthetibialtuberclewithoverlyingsofttissueswelling.SpecialtyOrthopedicsSymptomsPainfulbumpjustbelowtheknee,worsewithactivityandbetterwithrest[3]UsualonsetMalesbetweentheagesof10and15[3]DurationFewweekstomonths[4]RiskfactorsSportsthatinvolverunningorjumping[3]DiagnosticmethodBasedonsymptoms[3]TreatmentApplyingcold,stretching,strengtheningexercises[3]MedicationNSAIDsPrognosisGood[3]Frequency~4%[5]Osgood–Schlatterdisease(OSD)isinflammationofthepatellarligamentatthetibialtuberosity(apophysitis).[3]Itischaracterizedbyapainfulbumpjustbelowthekneethatisworsewithactivityandbetterwithrest.[3]Episodesofpaintypicallylastafewweekstomonths.[4]Oneorbothkneesmaybeaffectedandflaresmayrecur.[3][6]Riskfactorsincludeoveruse,especiallysportswhichinvolvefrequentrunningorjumping.[3]Theunderlyingmechanismisrepeatedtensiononthegrowthplateoftheuppertibia.[3]Diagnosisistypicallybasedonthesymptoms.[3]AplainX-raymaybeeithernormalorshowfragmentationintheattachmentarea.[3]Paintypicallyresolveswithtime.[3]Applyingcoldtotheaffectedarea,rest,stretching,andstrengtheningexercisesmayhelp.[3][4]NSAIDssuchasibuprofenmaybeused.[6]Slightlylessstressfulactivitiessuchasswimmingorwalkingmayberecommended.[3]Castingthelegforaperiodoftimemayhelp.[4]Aftergrowthslows,typicallyage16inboysand14ingirls,thepainwillnolongeroccurdespiteabumppotentiallyremaining.[6][7]About4%ofpeopleareaffectedatsomepointintime.[5]Malesbetweentheagesof10and15aremostoftenaffected.[3]TheconditionisnamedafterRobertBayleyOsgood(1873–1956),anAmericanorthopedicsurgeon,andCarlB.Sch