To know the haemodynamics of the osteoarthritis of the hip, intraosseous venographies of the proxymal femur were performed in 58 hips of 45 patients.
The picture of the veins obtained by intraosseous venography was examined with paticular attention to the visualization of superior retinacular vein (S. R. V.), inferior retinacular vein (I. R. V.), gluteal vein (G. V.), medial circumflex vein (M. C. V.), lateral circumflex vein (M. C. V.), and flow into diaphysis. (FID).
As the stage of the disease progressed, incidence of the visualization of S. R. V., I. R. V. and G. V. decreased and that of F. I. D. increased.
These findings suggest that disturbance of venous circulation has occurred in relation to the radiological abnormalities such as sclerotic change and cyst formation of the femoral head.
Another cause of the occurrence of F. I. D. may be the proxymal displacement of the femoral head.
