Differences in bone mineral density of trajectory between lumbar cortical and traditional pedicle screws

Table 2 HU values at the trajectory of CBT and TT in different decades

	Sex	Total	20–29	30–39	40–49	50–59	60–69	Above 70
CBT	M	384.75 ± 103.44	454.75 ± 83.39*^{∆‡ €}	432.14 ± 74.22^†•£	405.15 ± 85.45^Я	379.08 ± 104.15^ØΨ	336.86 ± 107.88	306.65 ± 76.67
	F	344.45 ± 102.84	432.68 ± 77.80*^{∆‡ €}	401.93 ± 89.90^†•£	363.64 ± 75.76^{^Я}	344.20 ± 116.75^ØΨ	289.62 ± 63.70	257.76 ± 59.71
	T	365.19 ± 105.05	444.37 ± 81.33*^{∆‡ €}	417.03 ± 83.57^※†•£	387.16 ± 83.71^{^Я}	361.64 ± 111.68^ØΨ	313.87 ± 92.03^~	281.55 ± 72.56
TT	M	211.71 ± 64.74	278.56 ± 47.30*^{∆‡ €}	254.75 ± 55.55^†•£	225.40 ± 38.08^{^Я}	197.18 ± 45.05^ØΨ	170.64 ± 51.05^~	148.36 ± 44.44
	F	185.56 ± 67.61	257.07 ± 47.94^#*^{∆‡ €}	214.94 ± 52.67^†•£	209.79 ± 77.45^{$^Я}	182.80 ± 54.90^ØΨ	143.32 ± 34.67	124.98 ± 31.23
	T	199.02 ± 67.89	268.44 ± 48.6^6#*^{∆‡ €}	234.84 ± 57.54^※†•£	218.64 ± 58.77^{$^Я}	189.99 ± 50.59^ØΨ	157.35 ± 45.839^~	136.35 ± .9.8

Statistical significance (p < 0.05)
CBT cortical bone trajectory, TT traditional trajectory, M males, F females, T total
^#20–29 versus 30–39 significant difference
*20–29 versus 40–49 significant difference
^∆20–29 versus 50–59 significant difference
^‡20–29 versus 60–69 significant difference
^€20–29 versus over 70 significant difference
^※30–39 versus 40–49 significant difference
^†30–39 versus 50–59 significant difference
^•30–39 versus 60–69 significant difference
_£30–39 versus over 70 significant difference
^$40–49 versus 50–59 significant difference
^{^}40–49 versus 60–69 significant difference
^Я40–49 versus over 70 significant difference
^Ø50–59 versus 60–69 significant difference
^Ψ50–59 versus over 70 significant difference
^~60–69 versus over 70 significant difference

ISSN: 1749-799X