ABSTRACT
BACKGROUND: [corrected] The authors present the results of treatment of aseptic loosening of hip prostheses using frozen allogenic spongy bone grafts. MATERIAL AND METHODS: 34 patients (8 men and 26 women) between 34 and 79 years of age were evaluated. These patients all underwent revision hip arthroplasty during the period from 1995 to 1998. Surgical treatment using frozen spongy bone grafts was performed on patients with defects of the acetabulum and femur after loosening of hip prostheses. In each case bone grafts were used for acetabular and femoral reconstruction. To evaluate the progress of graft incorporation, radiological examinations were made at 6 weeks, 3 months, 6 months, 1 year and 2 years after the date of surgery. We observed the process of calcification abilities of the reconstructed structures were evaluated according to the Merle d'Aubigne-Postel scale. RESULTS: In all cases the spongy bone grafts were reconstructed and rebuilt successfully. 24 patients had good results in further clinical examinations. We argue that frozen allogenic grafts of spongy bone are very useful in filling acetabular and femoral defects in aseptic loosening of hip prostheses. CONCLUSIONS: This method of treatment provides good results and should recommended.
ABSTRACT
The authors present the way of using the allogenic, frozen, radio-sterilized, spongy bone grafts in operational filling of defects after infra-articular fracture of proximal tibia. Fifteen patients (11 men and 4 women) classified between 30 and 66 years old were evaluated. These patients were operated from 1996 to 1998. The operational treatment with using frozen spongy bone grafts was performed on patients with comminuted split fracture of lateral condyle and depression of tibial plateau. In each case after elevating depressed fragment of tibial plateau bone grafts and screws were used to create a stable joint surface. In the same time other injured structures of the joint (ligaments, meniscus) were being reconstructed. To evaluate the stage of grafts incorporation, radiological examinations were made in; 4 weeks, 8 weeks, 6 months, 1 year from the date of the operation. We observed the process of calcification and forming trabeculac in bone grafts. The mechanical abilities of the reconstructed joint were evaluated according to the IKDS and Lysholm score. In all cases the spongy bone grafts in the joint were reconstructed and rebuild successfully. Thirteen patients had good and very good results in further clinical examinations. We claim that frozen, allogenic grafts of the spongy bone are very useful in filing detects of that bone caused by complicated injuries. This method of treatment with its good results is recommended.