Integral external fixator for anterior and posterior pelvic rings

Abstract

The invention discloses an integral external fixator for anterior and posterior pelvic rings. The integral external fixator comprises an anterior ring fixing area and a posterior ring fixing area, wherein the anterior ring fixing area comprises a first fixing structure, a second fixing structure and a third fixing structure; the posterior ring fixing area comprises a C-shaped frame; a fourth fixing structure and a fifth fixing structure are arranged at the upper end of the C-shaped frame; and the fourth fixing structure and the fifth fixing structure are separately connected with the anteriorring fixing area, so that anterior and posterior pelvic rings can be effectively connected to form integral overall fixation of the anterior and posterior rings. The integral external fixator is convenient to apply, adopts a supine position, and can treat a posterior pelvic ring fracture through a posterior approach without rolling over, so as to reduce a secondary injury. The external fixator hasan adjustable compression effect, and performs compression in a vertical direction and a horizontal direction through adjustment at the same time, so as to achieve fracture reduction and compressionfixation; and the integral external fixator can achieve early, minimally invasive, rapid and effective external fixation for wounded personnel with multiple pelvic fractures, especially combined anterior and posterior ring fractures.

Description

technical field [0001] The invention relates to an external fixation support for anterior and posterior pelvic rings, belonging to the field of orthopedic appliances. Background technique [0002] Unstable pelvic fractures are often accompanied by complications such as vascular and nerve injury, systemic coagulation disorders, deep vein thrombosis of the lower extremities, and hemorrhagic shock, which endanger the lives of patients. Implementing anti-shock treatment in the shortest possible time, effective reduction and fixation, and control of bleeding can reduce mortality and complications. The pelvic external fixation bracket has the advantages of small trauma, good fixation effect, maximum protection of periosteum and soft tissue blood supply, shortened absolute bed rest time and early functional exercise, and is convenient to operate and requires low anesthesia. Surgery can be performed immediately in the emergency room . Clinically, the pelvic external fixator cannot...

AI Technical Summary

Problems solved by technology

At present, the methods of placing external fixation brackets on the anterior pelvic ring mainly include anterosuperior (iliac wing) and anteroinferior (top of the acetabulum), among which the method of iliac wing screw placement is the most commonly used. The stability of the fixation bracket is limited, and only the anterior ring can be fixed. For patients with unstable anterior and posterior pelvic ring fractures, the stability of the fixation is not good, and secondary displacement is easy, so it is often necessary to perform posterior internal fixation at the same time.

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