Classification of Osteochondrosis
- Burrows’s classification: He divided into Pressure, traction, and atavistic types.
- Goff’s classification: He classified into compression, tension, and atavistic types.
These systems were inadequate.
Siffer proposed a classification that divided osteochondroses into articular, nonarticular, and physeal types; this schema is largely accepted today.
- Articular osteochondroses exhibit the following characteristics:
- Primary involvement of the articular and epiphyseal cartilage and a subjacent endochondral ossification center – Freiberg disease 
- Secondary involvement of the articular and epiphyseal cartilage as a consequence of ischemic necrosis of subjacent bone – Perthes disease, Köhler disease, osteochondritis dissecans
- Nonarticular osteochondroses occur at the following locations:
- Tendinous attachments – Osgood-Schlatter syndrome, Monde-Felix disease
- Ligamentous attachments – Vertebral ring
- Impact sites – Sever disease
- Physeal osteochondroses involve the following:
- Long bones – Tibia vara (Blount disease)
- Scheuermann disease
Few important Eponyms of osteochonrosis of different bones.
- osteochondritis of the capitulum of humerus – panner’s disease
- osteochondritis of the lunate bone – keinbock’s disease
- osteochondritis of the femoral head – perthe’s disease .
- osteochondritis of the tibial tubercle – osgood shlatter’s disease
- osteochondritis of the calcaneal tuberosity – sever’s disease
- osteochondritis of the navicular bone – kohler’s disease
- osteochondritis of the metatarsal head – freiberg’s disease
- osteochondritis of the ring epiphysis of the vertebrae – scheurmann’ s disease
- osteochondritis of the central bony nucleus of vertebral body – calve’s disease .
More eponyms and details in the PDF file: