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Surgical treatmeat for bone nonunion after massive allograft transplantation
Author(s): 
Pages: 837-841
Year: Issue:  11
Journal: Chinese Journal of Surgery

Keyword:  Bone transplantationBone neoplasmsAllograftBone nonunionAutagraft;
Abstract: Objective To evaluate the surgical treatment and outcome of autogenous bone grafting and internal fixation in management of bone nonunion after massive allografi transplantation. Methods From January 1994 to December 2006, 41 of 176 patients underwent bone nonunion after massive allograft transplantation. Twenty-two of 41 patients received autogenous bone grafting. Complete clinical and follow-up data was available for 15 cases. The average age at secondary autogenous bone grafting was 24 years old (ranging from 15 to 34). The primary diseases included esteosarcoma (5 cases), giant cell tumor (4cases), parosteal osteosareoma (2 cases), hemangioendothelioma (2 cases) and primitive neuroectodermal tumor (2 cases). Tumor was located at distal femur in 7 patients, middle of humerus in 3, middle of femur in 2, proximal tibia in 2 and proximal humerus in 1. Eight of 15 patients with simple bone nonunion received autogenous bone grafting. Another 7 patients with bone nonunion and fracture of primary internal fixation underwent autogenous bone grafting and re-internal fixation. Resets At a mean follow-up of 46.8 months (ranging from 18 to 148 months) , bone union was observed in 13 of 15 patients (86.7% ) with the mean healing time 13.3 months ( ranging from 5 to 20). Bone union could be observed in all 8 patients with simple bone nonunion and 5 of 7 patients with bone nonunion and internal fixation fracture, similar healing time 14 and 12 months respectively. There was no infection or any other complications. Two patients underwent re-nonunion received prosthesis replacement at last. The mean MSTS score of 13 patients was 25.1, with 8 simple bone nonunion patients and 5 combined with internal fixation fracture patients 25.4 and 24. 6 respectively, also basically no difference. Conclusions Autogenous bone grafting and internal fixation in management of nonunion after massive allograft transplantation have the advantage of easy operation, less complications, high rate of bone healing and good function result with obvious superiority to prosthesis replacement. For management of nonunion after massive allograft transplantation, autogenous bone grafting and internal fixation is mostly recommended.
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