Hutton, W. C., and B. M. Cyron. “Spondylolysis: The Role of the Posterior Elements in Resisting the Intervertebral Compressive Force”. Acta Orthopaedica 49, no. 6 (January 1, 1978): 604–609. Accessed May 4, 2026. https://actaorthop.org/actao/article/view/29183.