osteochondritis dissecans

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inflammation of bone and cartilage.
osteochondritis defor´mans juveni´lis osteochondritis of the capitular head of the epiphysis of the femur.
osteochondritis defor´mans juveni´lis dor´si osteochondrosis of vertebrae.
osteochondritis dis´secans osteochondritis resulting in the splitting of pieces of cartilage into the joint, particularly the knee joint or shoulder joint. The fragment of cartilage is called a joint mouse.

os·te·o·chon·dri·tis dis·se·cans

complete or incomplete separation of a portion of joint cartilage and underlying bone, usually involving the knee, associated with epiphyseal aseptic necrosis.

osteochondritis dissecans

Etymology: Gk, osteon, bone, chondros, cartilage; L, dissecare, to cut apart
a joint disorder in which a piece of cartilage and neighboring bone tissue become detached from an articular surface.

os·te·o·chon·dri·tis dis·se·cans

(os'tē-ō-kon-drī'tis dis'sĕ-kanz)
Complete or incomplete separation of a portion of joint cartilage and underlying bone, usually involving the knee, associated with epiphysial aseptic necrosis.

osteochondritis dissecans

An inflammatory disorder of joints in which small fragments of cartilage or bone are released into the interior of the joint, causing swelling, pain and limitation of movement. In some cases loose bodies may have to be removed.


Franz, German surgeon, 1832-1910.
König disease - complete or incomplete separation of joint cartilage and underlying bone, usually involving the knee. Synonym(s): osteochondritis dissecans

osteochondritis dissecans

fragmentation of cortical bone overlying an underlying focus of osteochondritis; fragment forms an intra-articular loose body; see osteochondrosis; Table 1
Table 1: Classifications of osteochondritis in the lower limb
Criterion 11. OC of the primary articular epiphysis (e.g. Freiberg's disease of the metatarsal head; Kohler's disease of the navicular)
2. OC of the secondary articular epiphysis (e.g. osteochondritis dissecans of the talus)
3. OC of the non-articular epiphysis (e.g. Osgood-Schlatter disease of the tibial tuberosity; Iselin's disease of the styloid process of the fifth metatarsal)
Criterion 21. Crushing apophysitis (e.g. Freiberg's disease) where the pressure of the base of the adjacent phalanx causes an 'eggshell fracture' of the affected metatarsal head
2. Traction or distraction apophysitis (e.g. Sever's disease; Iselin's disease; Osgood-Schlatter disease) where traction at the tendon insertion distracts a secondary centre of ossification from the body of the calcaneum, fifth metatarsal or tibia respectively
3. Fragmentation apophysitis (e.g. osteochondritis dissecans) in which the cortical bone overlying the enchondral defect fractures and separates to create a loose body within the joint
Two criteria may be used to classify osteochondritis:
• criterion 1 relates to the anatomical location of the enchondral ossification defect
• criterion 2 relates to the effects on the diseased bone brought about by the local forces that act on the bone.

Patient discussion about osteochondritis dissecans

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References in periodicals archive ?
Overall patient satisfaction scores were 90%, and patients with a diagnosis of osteochondritis dissecans significantly outperformed those with a diagnosis of osteoarthritis.
Osteochondritis dissecans of the humeral head: treatment with a matched osteochondral allograft.
Fresh osteochondral allografting in the treatment of osteochondritis dissecans of the femoral condyle.
ICRS classification system for grading osteochondritis dissecans Grade Description 1 Intact cartilage overlying the osteochondral fragmentation 2 Partial discontinuity of cartilage overlying the osteochondral fragmentation 3 Complete discontinuity of cartilage overlying the osteochondral fragmentation; fragment not displaced 4 Dislocated fragment or loose body
Osteochondritis Dissecans of the Knee: Treatment of Juvenile and Adults Forms.
The Arthroscopic Classification and Treatment of osteochondritis dissecans of the capitellum.
The arthroscopic management of osteochondritis dissecans of the adolescent elbow.
Outerbridge first used osteochondral autografts for the treatment of osteochondritis dissecans in the femur.
Fabbricciani C, Schiavone Panni A, Delcogliano A, et al: Osteochondral autograft in the treatment of osteochondritis dissecans of the knee.
Yamashita F, Sakakida K, Suzu F, Takai S: The transplantation of an autogeneic osteochondral fragment for osteochondritis dissecans of the knee.
Many different terms have been used to describe these defects of talar articular cartilage including transchondral fracture, osteochondral fracture, osteochondritis dissecans, talar dome fracture, and flaked fracture.
White J: Osteochondritis dissecans in association with dwarfism.

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