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Acute traumatic knee hemarthrosis

F A Barber1, J F Prudich

  • 1Plano Orthopedic and Sports Medicine Center, Texas 75075.

Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association
|January 1, 1993
PubMed
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Acute knee hemarthrosis in stable knees can indicate underlying bleeding disorders, not just significant injuries. Arthroscopic surgeons should consider clotting factor deficiencies like Hemophilia A in post-traumatic knee bleeding.

Area of Science:

  • Orthopedic Surgery
  • Hematology

Background:

  • Acute knee hemarthrosis is typically linked to significant intra-articular pathology, including ligament and meniscus tears.
  • Surgically significant lesions are found in up to 90% of cases with acute hemarthrosis.

Observation:

  • Two adult males presented with acute hemarthrosis in stable knees following trauma.
  • Arthroscopy revealed no significant intra-articular pathology in either patient.

Findings:

  • Persistent bleeding post-arthroscopy prompted further investigation.
  • Mild factor VIII deficiency was diagnosed in both cases, indicating underlying bleeding disorders.

Implications:

  • Post-traumatic hemarthrosis in stable knees may suggest a coagulopathy.

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  • Arthroscopic surgeons should consider hemophilia and other clotting disorders in the differential diagnosis of unexplained post-traumatic knee bleeding.