Answer to the letter to the editor of T.A. Mattei concerning "Far lateral approaches (XLIF) in adult scoliosis" by P. Berjano and C. Lamartina (Eur spine j. 2012 Jul 27. [Epub ahead of print]).

Answer to the letter to the editor of T.A. Mattei concerning "Far lateral approaches (XLIF) in adult scoliosis" by P. Berjano and C. Lamartina (Eur spine j. 2012 Jul 27. [Epub ahead of print]).