Pelvic ring orthosis
The pelvic ring orthosis is used for the treatment of symphysis loosening, loosening in the sacrum and iliac joint as well as symphysis ruptures. As a rule, pelvic ring orthoses are made of an 8–10 cm wide, inelastic material, which surrounds the pelvis in a circular manner; laterally made-to-measure pads enhance the effect. The closure takes place via a variably adjustable closure system.
Working principle
The orthosis has a compressive effect on the symphysis and the SI joint (sacrum and iliac joint). The pelvic ring orthosis prevents further sliding apart and shifting and the bony ring is largely closed and stabilized.
Medical background
The two halves of the pelvis are connected on the front by a cartilaginous joint , the pubic symphysis (symphysis pubica), and on the back by the sacroiliac joint (sacro-iliac joint). These connections are reinforced by tightly interwoven straps, which means that there is very little movement under normal circumstances. In order to make the child's path through the pelvis at birth as easy as possible, the body produces the hormone relaxin from the first day of pregnancy , which makes the ligaments in the pelvis more flexible and softer. This causes the ligaments to allow more movement than normal during and shortly after pregnancy . The additional movement creates an atypical rotation of the pelvis when walking or moving the legs .
Symptoms
Pain in the pubic area, groin, back pain and pelvic pain are the most common symptoms, and the pain can radiate into the inner thighs . The pain is usually worse when you spread your legs , climb stairs or reposition during the night. Going to the toilet at night can be a particularly painful affair.
literature
- Dietrich Hohmann, Ralf Uhlig: Orthopädische Technik , 9th revised edition, Thieme Verlag ISBN 3-13-135929-3 Instability of the pelvic joints p. 440 ff.
- H. Habermann: The pelvic bandage for symphysis ruptures . Orthopedic Technology, 1974; P. 25 ff.
