Wu, Chin-Hsien, Yu-Hsien Kao, Shih-Chieh Yang, Tsai-Sheng Fu, Po-Liang Lai, and Wen-Jer Chen. “Supplementary Pedicle Screw Fixation in Spinal Fusion for Degenerative Spondylolisthesis in Patients Aged 65 and Over: Outcome After a Minimum of 2 Years Follow-up in 82 Patients”. Acta Orthopaedica 79, no. 1 (January 1, 2008): 67–73. Accessed May 12, 2026. https://actaorthop.org/actao/article/view/18866.