Summary
Pseudoarthrosis is always referred to when, after fractures or operations on the bone, the healing process does not take place to the extent it should for various reasons. If there is an excessive but undirected formation of new bone, this is called reactive pseudarthrosis. If the problem is a lack of blood circulation, it is called avascular pseudarthrosis, and if there is hardly any bone formation, the clinical picture is called atrophic pseudarthrosis.
Undersupply of blood and loose or incorrectly attached metal (osteosynthesis materials) are among the most common causes of pseudarthrosis. Patients usually complain of pain at rest and in movement, as well as swelling and redness over the affected area. In addition, there is a functional impairment.
In most cases, an x-ray of the affected area is made as a diagnostic. It shows the remaining fracture gap and excessive bone formation, mostly at the edges. Furthermore, cysts may also be visible.
After diagnosis of pseudarthrosis, the joint in question should be immobilized with a plaster cast for six weeks and cooled or warmed by physical therapy. Medicinal analgesics (pain killers) help to minimize the pain. After 4 weeks, a new X-ray is taken to check the bone formation. If this is not sufficient, a new operation is usually necessary, in which new osteosynthesis material and bone-forming cancellous bone is inserted and bone tissue that is not supplied with blood is removed.
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