Letter to the Editor concerning “Relationship between sagittal spinal curves geometry and isokinetic trunk muscle strength in adults” by Elsayed W, Farrag A, Muaidi Q, Almulhim N (Eur Spine J [2018] 27:2014–2022)

[摘要] Recently, we read in the European Spine Journal the abovementioned interesting paper. The paper aim is pretty clear by the title; at the same time, the description of the instrumentation used to assess the spine curves is not so clear or correct at all [1].