Osteochondritis Flashcards
Which age group is most commonly associated with osteochondritis?
Children and young adults
Why is this age group associated with osteochondritis?
This may be due to increase physical activity with repetitive stress (compression or traction).
Name two potential causes of osteochondritis
Familial predisposition and underlying coagulopathy
Explain the pathogenesis of osteochondritis
Recurrent impact or traction injury causes bleeding and oedema in the bone. Capillaries become compressed and necrosis follows. This leads to compression, fragmentation or separation of bone and cartilage if intra-articular. This all leads to flattening and incongruence of a joint or a pothole on the surface of the bone.
What are two potential consequences of osteochondritis if a joint is involved?
Progresses to chronic pain and early arthritis.
Give the five common sites of compression osteochondritis.
2 metatarsal head - Freiburg’s disease
Navicular bone - Kohler’s disease
Lunate of the carpus - keinblock’s disease
Capitellum of the elbow - Panner’s disease
Vertebral compression - Scheuermann’s Disease
What is Perthe’s Disease?
it is though to be a compression osteochondritis affecting the developing hip.
Where does traction osteochondritis occur?
An apophysis (tubercle for a tendon insertion).
If a traction osteochondritis effects the ______ ______ this is call Osgood Schlatter disease.
If a traction osteochondritis effects the tibial tuberosity this is call Osgood Schlatter disease.
If a traction osteochondritis effects the _________ this is call Sever’s disease.
If a traction osteochondritis effects the calcaneus this is call sever’s disease.
What is osteochondritis dissecans?
This is fragmentation and separation of bone and cartilage within the joint.
name the four sites that are particularly predisposed to osteochondritis dissecans
lateral aspect of the medial femoral condyle
Anteromedial talar dome, capitellum of the humerus and the superomedial femoral head.
What can occur due to osteochondritis dissecans
Pain and effusions.
Locking and giving way of weight bearing joints
If the joint is damaged in osteochondritis what surgical procedure can help?
Realignment (osteotomy) can shift the load from a damaged to undamaged area.
In what particular areas can an osteotomy help with osteochondritis?
It can help with the knee or with freiburg’s disease.
