Application of DR in diagnosis of lumbar instability / 医疗卫生装备

Objective To apply DR to the diagnosis of lumbar instability.Methods Totally 198 patients suspected with lumbar instability underwent routine lateral side DR radiograph and examination of flexion-extension position to analyze the forward and backward displacements of the lumbar.Results Totally 35 patients with lumbar instability were determined based on the method proposed by White and Panjabi.Conclusion Film of flexion-extension position gains advantages over films of lateral position and oblique position in lumbar instability and malfunction, and thus helps for clinical diagnosis and efficacy observation.