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Biomedical subjects

R X Ma

Publications and source records attributed to R X Ma.

3 recordsLinked to original sources
PubMed1991

Intramedullary pressure changes in proximal femur before and after treatment of congenital dislocation of the hip. Evaluation of the development of the femoral head.

Thirty-four hips were observed radiographically to see the development of the femoral head. The intramedullary pressure was measured in the proximal femur before and after treatment of congenital dislocation of the hips. The intramedullary pressure in the avascular femoral head decreased more obviously than that in the normal head after treatment. A term of "IMP subtraction value" was put forward as an objective index for evaluating the development of the femoral head after treatment of congenital dislocation of the hip.

Child↗
PubMed1989

Intramedullary pressure in the proximal femur before and after treatment of congenital dislocation of the hip in children.

Intramedullary pressure in the proximal femur was measured before and after treatment of congenital dislocation of the hip. The intramedullary pressure before treatment was higher than that of the control group, and after treatment it was lower as a whole; in the close reduction group the pressure decreased as compared with the operation group. In 8 hips, stress test yielded negative results. These findings suggested the characteristics of arterial blockage may be that the potential cause of avascular necrosis of the femoral head after treatment of congenital dislocation of the hip.

Blood Pressure↗