The use of preoperative imaging in the treatment of sacral chordomas

We greatly appreciate the thoughtful response by Munger and colleagues (1) to our original article on the predictive value of magnetic resonance imaging (MRI) findings on outcomes after en bloc resection of sacral chordomas (2). While we caution against over-interpretation given our sample size, we humbly believe that the preoperative imaging factors elucidated in our study may have prognostic implications that are important for both patients and surgeons.