Abstract: ［Abstract］ Objective〖HTSS〗To investigate the risk factors of non-union of the docking site after bone transfer for traumatic chronic osteomyelitis of the tibia.
〖WTHZ〗Methods〖HTSS〗The clinical data of 138 patients with traumatic tibia chronic osteomyelitis who underwent therapy by bone transfer were reviewed. Single factor analysis was used to analyze the related factors by Chi-square test, and logistic regression was used for multivariate analysis to screen risk factors.
〖WTHZ〗Results〖HTSS〗A total of 138 cases were followed up for 8-48 months, and the average was (24.76±8.49) months. Eighty-one cases had bone union and 57 cases had non-union, the incidence was 41.3%, including 21 cases(15.2%) due to osteoarthritis, 18 cases(13.0%) with poor line position, 13 cases(9.4%) with atrophy of bone resorption, and 5 cases(3.6%) with soft tissue incarceration. The results of single factor analysis showed that age, smoking, local soft tissue condition, bone moving distance and moving direction were the affecting factors fornon-union of the docking site after bone transfer for traumatic chronic osteomyelitis of the tibia(P＜0.05). Multiple factor Logistic regression analysis showed that age, smoking, local soft tissue conditions, and bone moving distance were risk factors for non-union of the docking site after bone transfer for traumatic chronic osteomyelitis of the tibia(P＜0.05).
〖WTHZ〗Conclusion〖HTSS〗Bone transfer is an effective method for the treatment of traumatic chronic osteomyelitis of the tibia combined with large bone defect,but there is a high probability of postoperative nonunion at the docking site. And age, smoking, local soft tissue conditions, and bone moving distance are risk factors.

Key words: osteomyelitis, tibia, fractures, ununited