Haemophilic arthropathy

Case contributed by Abdallah Al Khateeb
Diagnosis certain


Known case of a systematic disorder. There is also history of knee trauma. Joint movement is painful and limited.

Patient Data

Age: 7-year-old
Gender: Male

The right knee joint shows moderate effusion, decreased joint space, subchondral erosions, and the physis is narrow compared to the other knee. The intercondylar notch is irregular and wide. 

  • moderate joint effusion
  • decreased joint space 
  • subchondral erosions and cystic changes
  • cartilage loss
  • the synovium is thickened with multifocal low signal intensity
  • the intercondylar notch is widened with erosive changes

Case Discussion

This young patient has hemophilia A, with multiple previous episodes of knee pain, also he sustained significant knee trauma previously, which altogether lead to these typical findings of advanced or neglected haemophilic arthropathy too early.

Due to repetitive episodes of intra-articular bleeds, the synovium got stained with blood products (hemosiderin), seen as low signal covering the synovium.

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