“…All 27 included studies were cross-sectional studies, with sample sizes ranging from 20 to 167. Nine studies reported on INP exclusively [58,59,63,66,67,71,72,78,79], eight studies on WAD only [57, 61, 64, 68-70, 77, 80], six studies assessed outcomes for WAD and INP separately [60,62,65,75,76,81], while another four studies reported on unclassified NP [73,74,82,83]. Eight studies, that included patients after WAD [60,69,70,[73][74][75][76][77] did not report on a specific grade according to the Quebec Task classification [84], while another eight studies included patients after WAD grade I [61,62,64,65,68,81], grade II [57,61,62,64,65,68,80,81], or grade III [57,61].…”