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  • Title: [Change in the treatment method of infected pseudarthrosis with bone loss of the tibia].
    Author: Schultz JH, Schmidt HG, Jürgens C, Kortmann HR.
    Journal: Zentralbl Chir; 1994; 119(10):714-21. PubMed ID: 7801710.
    Abstract:
    AIM OF INVESTIGATION: The treatment of nonunions complicated by infection and bone loss is divided into two stages. Having calmed down the infection by stabilizing, removal of infected and necrotic tissue and local antibacterial measures, the bone loss has to be filled up. Bridging the gap by means of autogenous cancellous bone grafting is complicated by a high rate of refractures depending on the length of bone loss. Therefore after changing the method and using the Ilizarov procedure it is of interest, whether this method offers advantages. Our experience is to be reported and discussed. METHODS: According to the clinical course two groups of patients with nonunions of the tibia complicated by infection and bone loss were compared. 25 previously evaluated patients of the years 1980/81 whose tibial bone loss was bridged by cancellous bone grafting (1st group) were compared with 16 patients who were treated by the Ilizarov method from May 1990 to October 1993 (2nd group). The average age was nearly the same (32.6/32.9 years). In the first group the average of bone loss measured 4 cm, in the second 7.8 cm. The number of initial operations to eliminate infection and the duration of fixator application from the beginning of bridging bone loss were compared as well as early and late complications, especially the rate of refracture and reinfection. RESULTS: 1.2 operations were needed to eliminate infection in the first group, in the second only one was necessary. The handling of the Ilizarov device is more difficult and needs training. The higher rate of early complications at the beginning decreased with increasing experience. The average of fixation time could be reduced by about ten days per cm of bone loss using the Ilizarov technique. By segmental transport new cortical bone is generated which surpasses cancellous bone grafting in regard to stability. This seems to be an important reason that refracture did not occur in the second group. Furthermore, reinfection could be avoided up to now obviously due to sufficient segmental resection of infected and necrotic tissue. Limited stores of autogenous cancellous bone are not to be feared. The total number of operations can be reduced. At the docking side early single cancellous bone grafting is recommended.
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