[Biomechanical analysis of the correlation between sacral tilt displacement and L₅S₁ disc degeneration].

Objective: To biomechanical analysis of the correlation between sacral tilt displacement and L₅-S₁ disc degeneration.

Methods: From July 2011 to July 2013, 81 patients with lumbar disc herniation and sacroiliac joint disorder including 45 males and 36 females with an average age of (45.39±1.