Figure 2

Treatment decisions for FFP. At first, the rater had to decide between non-operative and operative treatment. No further specific treatment data were obtained when non-operative treatment was performed. For operative treatment, the rater had to decide whether to use anterior and/or posterior stabilization. For anterior stabilization, the rater could choose between procedures; no combinations were possible. For posterior stabilization, the rater could choose unilateral or bilateral stabilization and further specified the operative method; combinations were possible.