The bony<unk>  consists of the ilium (i.e., iliac wings), ischium, and pubis, which form an anatomic ring with the sacrum. Disruption of this ring requires significant energy. When it comes to the stability and the structure of the<unk> , or<unk>  girdle, understanding its function as support for the trunk and legs helps to recognize the effect a<unk>  has on someone. The pubic bone, the ischium and the ilium make up the<unk>  girdle, fused together as one unit. They attach to both sides of the spine and circle around to create a ring and sockets to place hip joints. Attachment to the spine is important to direct force into the trunk from the legs as movement occurs, extending to one's back. This requires the<unk>  to be strong enough to withstand pressure and energy. Various muscles play important roles in<unk>  stability. Because of the forces involved,<unk> s frequently involve injury to organs contained within the bony<unk> . In addition, trauma to extra-pelvic organs is common.<unk> s are often associated with severe hemorrhage due to the extensive blood supply to the region. The veins of the presacral<unk>  plexus are particularly vulnerable. Greater than 85 percent of bleeding due to<unk> s is venous or from the open surfaces of the bone.
Pelvic fracture
Low back pain
Acetabular fracture
Spinal fracture
Hip fracture
Femoral fracture
Sacral fracture
Knee dislocation