3D Surface Topographic Optical Scans Yield Highly Reliable Global Spine Range of Motion Measurements in Scoliotic and Non-Scoliotic Adolescents
Abstract
:1. Introduction
2. Materials and Methods
2.1. Subjects
2.2. Surface Topographic Scanner
2.3. Scan Protocol
2.4. Automated Analysis
2.5. Reliability
2.6. Measurements
2.7. Statistical Analysis
3. Results
3.1. Reliability
3.2. Scoliosis Patients Versus Controls
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Lateral Bending Measurements | Description | Calculation |
Lateral Bend Fingertip Asymmetry | Asymmetry of left vs. right bend fingertips to floor | 200 × |(finger tips right − finger tips left)|/(finger tips right + finger tips left) |
Lateral Bend Acromia Asymmetry | Asymmetry of left vs. right bend acromia to floor | 200 × |(Right AC height right − left AC height left)|/(Right AC height right + left AC height left) |
Coronal Angle Asymmetry | Asymmetry of left vs. right coronal angle (angle between C7 to PSIS midpoint and line between PSIS) | 200 × |(coronal angle right − coronal angle left)|/(coronal angle right + coronal angle left) |
Coronal Angle ROM | Left + right coronal angle (summation of angles from C7 to PSIS midpoint and line between PSIS in left and right bends) | (coronal angle right + coronal angle left) |
Forward Bending Measurements | Description | Calculation |
Forward Bend Finger to Floor | Finger to floor distance in maximum forward flexion. Normalized to patient height. | (finger to floor distance)/(patient height) |
Forward Bend Acromia to Floor | Average of acromioclavicular joint distance to floor in maximum forward flexion. Normalized to height. | (average distance from right AC joint to floor and left AC joint to floor)/(height) |
Sagittal Angle | Maximum forward bend angle measured from C7 to PSIS midpoint, referenced to the line perpendicular to the floor. | (maximum forward bend angle) |
Sagittal Angle Normalized | Maximum forward bend angle measured from C7 to PSIS midpoint, subtracting reference angle in A-pose. | (Sagittal angle forward − sagittal angle A pose) |
Reliability | Controls, n = 20 | Patients, n = 26 |
---|---|---|
Sex | ||
Males, n (%) | 11 (55) | 12 (46.2) |
Age, mean (range, SD), years | 14.6 (11–20, 2.4) | 14.5 (11–21, 2.7) |
BMI, mean (range, SD), kg/m2 | 21.7 (16.8–28.7, 3.8) | 20.6 (15.9–35.9, 4.3) |
Measurements | Intra-Rater Reliability, ICC (95%CI) | Inter-Rater Reliability, ICC (95%CI) | |
---|---|---|---|
Test–Retest | Remove-Replace | ||
Lateral Bending | |||
LBFA | 0.448, 0.481 (0.165–0.677) | 0.233, 0.457 (−0.069–0.682) | 0.496 (0.236–0.689) |
LBAA | 0.509, 0.564 (0.254–0.736) | 0.176, 0.588 (−0.128–0.752) | 0.433 (0.155–0.649) |
CAA | 0.576, 0.769 (0.339–0.867) | 0.601, 0.738 (0.372–0.848) | 0.756 (0.594–0.859) |
CAR | 0.910, 0.965 (0.842–0.981) | 0.795, 0.819 (0.655–0.897) | 0.783 (0.636–0.876) |
Forward Bending | |||
FBFF | 0.984, 0.990 (0.971–0.995) | 0.985. 0.985 (0.968–0.993) | 0.984 (0.970–0.991) |
FBAF | 0.939, 0.958 (0.891–0.977) | 0.799, 0.836 (0.660–0.907) | 0.746 (0.580–0.852) |
SA | 0.666, 0.750 (0.458–0.859) | 0.413, 0.995 (0.132–0.995) | 0.994 (0.988–0.996) |
SAN | 0.973, 0.973 (0.950–0.986) | 0.957, 0.981 (0.921–0.990) | 0.977 (0.957–0.987) |
Scoliosis Patients vs. Controls | Controls, n = 37 | Patients, n = 58 |
---|---|---|
Sex | ||
Males, n (%) | 23 (62.2) | 21 (36.2) |
Age, mean (range, SD), years | 14.3 (11–20, 2.4) | 14.6 (11–21, 2.2) |
BMI, mean (range, SD), kg/m2 | 21.9 (16.8–29.7, 3.9) | 21.1 (15.3–35.9, 4.6) |
Thoracic Cobb angle, average (range, SD), degrees | N/A | 49.5 (15.2–83.1, 17.1) |
Lumbar Cobb angle, average (range, SD), degrees | N/A | 42.1 (25.1–86.3, 13.4) |
Patients, n = 58 | Controls, n = 37 | ||||
---|---|---|---|---|---|
Mean | SD | Mean | SD | p-Value | |
Lateral Bending Measurements | |||||
LBFA | 10.80 | 9.01 | 6.35 | 6.40 | 0.011 |
LBAA | 3.56 | 2.81 | 1.83 | 1.74 | 0.001 |
CAA | 22.73 | 17.40 | 9.34 | 6.62 | ≤0.001 |
CAR (degrees) | 68.91 | 18.99 | 73.68 | 12.15 | 0.18 |
Forward Bending Measurements * | |||||
FBFF | 0.076 | 0.062 | 0.07 | 0.054 | 0.63 |
FBAF | 0.45 | 0.07 | 0.41 | 0.07 | 0.018 |
SA (degrees) | 65.56 | 13.36 | 60.07 | 16.22 | 0.086 |
SAN (degrees) | 59.14 | 13.13 | 54.19 | 16.27 | 0.12 |
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Page, K.; Gmelich, C.; Thakur, A.; Heyer, J.H.; Hillstrom, H.J.; Groisser, B.; Morse, K.W.; Li, D.; Cunningham, M.E.; Hresko, M.T.; et al. 3D Surface Topographic Optical Scans Yield Highly Reliable Global Spine Range of Motion Measurements in Scoliotic and Non-Scoliotic Adolescents. Children 2022, 9, 1756. https://doi.org/10.3390/children9111756
Page K, Gmelich C, Thakur A, Heyer JH, Hillstrom HJ, Groisser B, Morse KW, Li D, Cunningham ME, Hresko MT, et al. 3D Surface Topographic Optical Scans Yield Highly Reliable Global Spine Range of Motion Measurements in Scoliotic and Non-Scoliotic Adolescents. Children. 2022; 9(11):1756. https://doi.org/10.3390/children9111756
Chicago/Turabian StylePage, Kira, Caroline Gmelich, Ankush Thakur, Jessica H. Heyer, Howard J. Hillstrom, Benjamin Groisser, Kyle W. Morse, Don Li, Matthew E. Cunningham, M. Timothy Hresko, and et al. 2022. "3D Surface Topographic Optical Scans Yield Highly Reliable Global Spine Range of Motion Measurements in Scoliotic and Non-Scoliotic Adolescents" Children 9, no. 11: 1756. https://doi.org/10.3390/children9111756