“…The mean improvement of the ROM is 15.37° for the Freedom (13.5% of improvement), 16.9° for the Persona (15.6% of improvement), 19° for the Triathlon (17% of improvement), 10° for the Legion (8.7% of improvement) and 16.3° for the Attune (21% of improvement) (Figure 1). [14]), Legion (yellow, c [27]), Triathlon (green, d [13]), Persona (blue ,e [17], f [19], g [26]), and Freedom (orange ,h [29], i [11]). [14]), Legion (yellow, c [27]), Triathlon (green, d [13]), Persona (blue, e [17], f [19], g [26]), and Freedom (orange, h [29], i [11]).…”