[Femoral head blood flow in dogs subjected to intra-articular pressure increase and to pressure release].

In six beagles femoral head blood flow is measured with radioactive microspheres. When intra-articular pressure of the hip joint is increased by 50 mm Hg, blood flow is diminished to 48%. Reducing intra-articular pressure to the initial level increases femoral head blood flow to 78%. The results support the demand for immediate pressure relief of hemarthrosis.