For a long time thought that the osteochondritis dissecans (OCD) in childhood had better prognosis than in adults. Thereafter Gerbaski et al.
postulated the presence of this better prognosis could be due to migdiagnosis,
at least in part,
by the erroneous diagnosis of some developmental variants of ossification as stage-I OCD. We consider it important to review the various forms of presentation for radiological diagnosis to avoid anxiety of parents and loss of quality of life for children,...
Methods and Materials
Knee MRI of15 children on 1.5 T.
Ages between 9 and 16 years.
Only symptomatics knees were imaged.
Retrospectively reviewed to look for features that might separate normal variants of ossification from S-I OCD. We categorized the lesions in accordance with: Cahill et al.
(1): Figure 1 - medial - lateral - intercondylar/inferocentral Harding and Hughston et al (2): Figure 2 - anterior - central - posterior Gerbasky et al.
(3): Figure 3 - puzzle piece - incomplete puzzle piece - spiculated -...
We got similar results than Gerbasky et al.
but many indeterminate lesions. Our results are reflected in table1 and table 2
Normal variants ossification can mimic S-I OCD. The frequency of lateral condylar involvement is much higher in S-I OCD in children than in adults. The increase in MRI of children´s knees with misdiagnosis of normal variants ossifications as S-I OCD could explain this shift. Instead of many of our cases were indeterminate lesions,
several features that are helpful in distinguishing one of each other are: the location in the inferocentral posterior femoral condyles with intact overlying...
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