Table 3.

Summary of PostureRay® Comparison Evaluation of Pre-Treatment and Re-Exam 2 LL X-rays.

Measurement	Normal Values	Xray 1 Values	Xray 3 Values
RRA L1-L2	−5°	−7.5°	−4.8°
RRA L2-L3	−6°	−12.1°	−13.6°
RRA L3-L4	−9°	−16.0°	−17.7°
RRA L4-L5	−19°	−11.8°	−11.3°
RRA L5-S1	−33°	−14.8°	−18.8°
ARA L1-L5	−40°	−47.3°	−47.4°
Sacral Base Angle	40°	29.4°	37.0°
Tz L1-L2	0 mm	−1.1 mm	0.0 mm
Tz L2-L3	0 mm	−1.0 mm	−0.3 mm
Tz L3-L4	0 mm	−0.5 mm	0.3 mm
Tz L4-L5	0 mm	13.3 mm	2.4 mm
Tz L5-S1	0 mm	0.1 mm	0.7 mm
Tz L1-S1	0 mm	29.3 mm	23.3 mm

Table 3 shows RRAs from L1 to S1, SBAs, Tz per segment from L1 to S1, and Tz of L1 to S1 comparisons of pre-treatment and re-exam 2 LL x-rays. RRA L5-S1 improved from −14.8° to −18.8° (normal is −33°), SBA improved from 29.4° to 37.0° (normal is 40.0°), Tz L4-L5 improved from 13.3 mm to 2.4 mm, WNL (normal is 0.0 mm), and Tz L1-S1 improved from 29.3 to 23.3 (normal is 0.0 mm).

RRA = Relative Rotational Angle of Measurement

ARA = Absolute Rotational Angle of Measurement

Tz = Translation in the z-axis

^*Tz in Red Exceed Established Normal

Xray 1 Values = Pre-treatment views

Xray 3 Values = Re-Exam 2 following 60 sessions over 45 weeks