2306-4102 2306-4102 S2306-41022018000600342 Mexico Mexico Mexico Mexico Mexico Mexico 00 12 2018 00 12 2018 32 6 342 346

1 2017 55 4 4 201-7 2 2013 38 26 26 2258-63 3 2014 43 6 6 738-44 4 2012 37 20 20 1742-6 5 2016 59 6 6 590-6 6 2013 9 7 7 423-32 7 Hyogo Organization of Spinal Disorders 2017 42 8 8 556-64 8 2017 20 5 5 541-9 9 2017 42 13 13 966-73 10 1991 272 272 127-35 11 2014 52 6 6 462-6 12 2006 65 7 7 884-8 13 2015 17 148