Osteochondritis Dissecans (Subscribe)  

Notes on Osteochondritis Dissecans of the Knee & Cartilage Substitutes

Discussion points
1. Describe the most frequent sites of osteocondral fracture in the child
2. Describe the repair process for osteochondral fractures
3. Describe present treatment approaches for osteochondral fractures

Osteochondritis dissecans (OCD) may occur in many joints, most commonly, the knee joint. This chapter focuses on the OCD of the knee. The etiology may be traumatic, vascular, genetic, or idiopathic. To recognize the lesion, special attention should be paid to plain radiographs. Magnetic resonance imaging is helpful in detecting...

Contents - Introduction Indications Relevant Anatomy And Contraindications Workup Treatment Complications Outcome And Prognosis Future And Controversies Pictures Bibliography
Synonyms and related keywords: OCD, osteochondral fragments, juvenile osteochondritis dissecans, adult osteochondritis dissecans, OCD of the knee, OCD of the elbow, OCD of the ankle, knee OCD, ankle OCD, lower extremity OCD,...

Full Text. report of 4 cases of short stature and multiple joint OCD
WHITE J.J Bone Joint Surg Br. 1957 May;39-B(2):261-7

Mayo Clinic Patient Information on OCD of the knee Expert

Professional/High Grade Patient Information
Contents - Epidemiology, Presentation (signs& symptoms), Differential Diagnosis, Investigations, Management, References

Osteochondritis dissecans: analysis of mechanical stability with radiography, scintigraphy, and MR imaging.
Twenty-one joints with stable (n = 9) or loose (n = 12) osteochondritis dissecans (OCD) lesions were examined in 15 subjects with plain radiography, three-phase bone scintigraphy, and magnetic resonance (MR) imaging. The lesion size and the thickness of...

osteochondrosis (aka osteochondritis) dissecans
subchondral fatigue fracture commonly seen in adolescents
1. capitellum of elbow
2. knee
* medial femoral condyle close to fossa intercondylaris
* bilateral in 20-30%, rarely lateral
3. talus
* mouse = osteochondrotic fragment
* mouse bed = sclerosed pit in articular surface

Contents - Introduction Differentials Radiograph CT Scan MRI Ultrasound Nuclear Medicine Intervention Pictures Bibliography
Synonyms and related keywords: osteochondral fracture, osteochondrosis, osteochondral defect, osteochondral lesion, OCD
Osteochondritis dissecans (OCD) is a term for osteochondral fracture. An osteochondral fragment may be present in situ, incompletely detached, or completely detached. A completely detached...

Interruption of vascular supply to a bone has a greater effect at the bone ends where the perfusion arrives from one side only. Osteonecrosis frequently involves joints. The local geometry and the covering of cartilage must be relevant. Weight bearing over a small area of bone is also related to...