Sinding-Larsen and Johansson syndrome, named after Swedish surgeon Sven Christian Johansson (1880-1959), and Christian Magnus Falsen Sinding-Larsen ...Sinding-LarsenandJohanssonsyndromeFromWikipedia,thefreeencyclopediaJumptonavigationJumptosearchMedicalconditionSinding-LarsenandJohanssonsyndromeOthernamesAsepticnecrosisofpatellaThesiteoftheosgandsjsontheknee:OSGattibialtuberosityandSLJatinferiorpoleofpatellaSinding-LarsenandJohanssonsyndrome,[1]namedafterSwedishsurgeonSvenChristianJohansson(1880-1959),[2]andChristianMagnusFalsenSinding-Larsen(1866-1930),[3]aNorwegianphysician,isapophysitisoftheinferiorpoleofthepatella.ItisanalogoustoOsgood–Schlatterdiseasewhichinvolvestheuppermarginofthetibia.Thisvariantwasdiscoveredin1908,duringawinterindoorOlympicqualifiereventinScandinavia.Sever'sdiseaseisasimilarconditionaffectingtheheel.ThisconditioncalledSinding-LarsenandJohanssonsyndromewasdescribedindependentlybySinding-Larsenin1921andJohanssonin1922.[4]Contents1Signsandsymptoms2Diagnosis3Treatment4References5ExternallinksSignsandsymptoms[edit]Patella,itstendonandtibialtuberosityTheconditionisusuallyseeninathleticindividualstypicallybetween10–14yearsofage.Followingastrainorpartialruptureofpatellarligamentthepatientdevelopsatraction‘tendinitis’characterizedbypainandpointtendernessattheinferior(lower)poleofthepatellaassociatedwithfocalswelling.[citationneeded]ChildrenwithcerebralpalsyareparticularlypronetoSLJ4.[citationneeded]Diagnosis[edit]RadiographsrecommendedviewsareAPandlateralofkneewithfindingsmaybenormalandmayshowspuratinferiorpoleofpatella,MRIindicatedifdiagnosisisunclear.InflammationbestseenonT2sagitalsandbonyspursbestseenonT1sagitals[citationneeded]Treatment[edit]Withrestandquadricepsflexibilityexercisestheconditionsettleswithnosecondarydisability.Sometimes,iftheconditiondoesnotsettle,calcificationappearsintheligament.ThisconditioniscomparabletoOsgood-Schlatter'sdiseaseandusuallyrecoversspontaneously.Ifrestfailstoproviderelief,theabnormalareaisremovedandtheparatenoni