Abstract
The percentage of delayed or non-unions after fractures of long bones depends on the individual risk profile at approximately 10 %. The current definition states that a non-union is a fracture that will not consolidate without any further intervention - independent from the treatment time. At the early stage of a non-union a conservative treatment is possible in case of an adequately stable situation. The operative treatment depends on the type of the non-union. There are one-step or two-step procedures, all according to the principles of the "diamond concept". This means improvement of the mechanical situation - in most cases by means of a reosteosynthesis - and vascularization, local application of osteoconductive carriers e.g. tricalciumphosphate, vital cells from autologous bone and osteoinductive substances like bone morphogenetic proteins (BMP-2 or BMP-7). Hypertrophic and atrophic non-unions without large defect gaps or signs of infection can be treated with a one-step procedure. For treating infected non-unions or non-unions with large defect gaps the Masquelet technique is recommended.
Published Version
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