Question: is this a 2) strong advice, 1) weak advice 0) no advice?

The probability of recurrence of an infection in the spondylodesis segment should theoretically be higher in ventral instrumentation than in dorsal instrumentation due to the more direct contact with the former focus of infection [9], but Eysel et al. [4], and own experiences revealed a practically identical reinfection rate in patients with ventro-dorsal and ventral spondylodesis. 
user
This is no advice
assistant