The application of radium and the ingestion of radio-active waters have
also been recommended.
#Haemophilic# or #Bleeder's Joint#.--This is a rare but characteristic
affection met with chiefly in the knee-joint of boys who are the
subjects of haemophilia. After some trivial injury, or even without
apparent cause, a haemorrhage takes place into the joint. The joint is
tensely swollen, cannot be completely extended, and is so painful that
the patient is obliged to lie up. The temperature is often raised (101
to 102 F.), especially if there are also haemorrhages elsewhere. The
blood in the joint is slowly re-absorbed, and by the end of a fortnight
or so, the symptoms completely disappear. As a rule these attacks are
repeated; the pain attending them diminishes, but the joint becomes the
seat of permanent changes: the synovial membrane is thickened,
abnormally vascular, and coloured brown from the deposit of blood
pigment; on its surface, and in parts of the articular cartilage, there
is a deposit of rust-coloured fibrin; there may be extensive adhesions,
and in some cases changes occur like those observed in arthritis
deformans with erosion and ulceration of the cartilage and a form of dry
caries of the articular surfaces, which may terminate in ankylosis.
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