Background: The literature is scanty regarding the biomechanical effects of different thread configurations on the initial stability of ankle arthrodesis. This study aims to compare the initial stability of tibiotalar fusion site in ankle arthrodesis using cannulated screws with different thread designs.
Methods: We biomechanically tested under cyclic loading the effects of different screw combinations on the initial stability of ankle arthrodesis.
Dega acetabuloplasty at the time of open reduction is effective in improving the acetabular coverage of the femoral head, hence improving the stability of reduction and preventing possible surgery in the future for residual acetabular dysplasia in older children with Tönnis grade 3 and 4 developmental dysplasia of the hip (DDH). The aim of this study was to assess the radiological results of open reduction combined with Dega osteotomy in DDH. Twenty-two children's 26 hips were operated on at a mean age of 38±20.
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