<prompt> Osgood-Shaltterrs disease is seen in: PGI Dec 2010Proximal tibiaProximal femurDistal tibiaDistal femur  <response>: Ans: AProximal tibia Osgood-Shaltter Disease also known as Tbial tubercle traumatic apophysitis or Louises knees disease It is an inflammation of the growth plate at the tibia! tuberosity. It is a type of osteochondritis.NoteIt is an inflammation of the growth plate at the tibial tuberosity. It is a type of osteochondritis.The disease is most common in active boys aged 10-15. It most commonly occurs in just one leg but can occur in both at the same time.The natural history is benign, with almost all cases asymptomatic by skeletal maturitySurgical excision of residual ossicle has been described with good outcomeOsteochondritis OsteochondrosisIt is ischemic necrosis of orteoarticular fragment of bone leading to compression, fragmentation or separation of a small segment of a articular cartilage of bone. This occurs mainly in adolescent and young adults, often during phase of increased physical activity, and may be initiated by trauma or repetitive stress. It can be of three types:1. Crushing OsteochondritisDiseaseSiteKohlersKienbocksPerthesNavicularLunateFemoral headScheurmanns CalvesRing epiphysis of vertebrae Central bony nucleus of vertebral bodyFriebergsIslene2nd Metatarsal head 5th Metatarsal base2. Splitting OsteochnodritisKnee lower lateral part of medial femoral condyle is a most commonly involved jointQ3. Pulling Osteochondritis Traction ApophysitisDiseaseSiteOsgood ShalttersTibial tuberosityQSeveresCalcanea apophysisJohansson Larsens diseaseLower pole patella 