The adjective piriformis , which comes from the Latin word pirum, allows to qualify what looks like pear . The term is usually used to refer to a muscle which is in the area of the buttocks.
He muscle piriformis It is flattened and has a triangular shape at its outer vertex. Born in the sacral bone , is inserted in the trochanter major and make a division of major sciatic hole in two.
The function of the piriformis muscle is abduction, external rotation and extension of the femur . These Actions can be carried out if the pelvis It is fixed.
It is known as piriformis syndrome or piriformis muscle syndrome to a pathology characterized by the numbness and the pain on the back of the legs and on the buttocks.
This syndrome, more common in women than in men although uncommon in general, occurs when the piriformis muscle generates a Pressure at sciatic nerve . If the piriformis muscle is irritated or injured, spasms can occur which, in turn, generate tension and inflammation; In this context, the piriformis muscle presses the sciatic nerve beneath it.
Piriformis muscle spasms can be caused by excessive physical activity, by lifting a very heavy element or by sitting for a long time, for example. Trauma can also cause this picture. With piriformis syndrome, pain usually affects only one side of the lower sector of the body .
Faced with piriformis muscle syndrome, a doctor should indicate the best treatment according to the individual case. Usually specialists prescribe analgesics , perform postural recommendations and suggest repose until the discomfort disappears.