<prompt> Osgood schlatter disease-Tibial tuberosityFemur headNavicularCalcaneum  <response>: Ans. is a i.e., Tibial tuberosity Kienbocks disease is osteochondritis of LunateNameSite affectedo Perthess diseaseo Panners diseaseo Kienbocks diseaseo Osgood Sh latters diseaseo Severs diseaseo Kohlers diseaseo Scheurmanns diseaseo Calves diseaseo Friebergs diseaseo Islene diseaseo Johansson-Larsons diseaseo Preisers diseaseFemoral headCapitulumLunate boneTibial tubercleCalcaneal tuberosityNavicular boneRing epiphysis of vertebraeCentral bony nucleus of vertebral bodyOsteochondritis of 2nd metatarsal head.Osteochondritis of 5th metatarsal headOsteochondritis of lower pole of patella.Spontaneous avascular necrosis of scaphoid. 