Affiliations: [a] Department of Basic Sciences, Faculty of Physical Therapy, Cairo University, Giza, Egypt | [b] Department for Musculoskeletal Disorders and its Surgery, Faculty of Physical Therapy, Cairo University, Giza, Egypt
Correspondence:
[*]
Corresponding authou: Elsadat Saad Soliman, 7 Ahmed Elzaiat St., Ben Elsaryat-EI Dokki, Cairo University, Giza 12612, Egypt. E-mail:[email protected],[email protected]
Abstract: BACKGROUND: Noninvasive rasterstereography has been reported as a
helpful tool for assessing pelvic parameters. However, the validation and
reproducibility of this tool are still questionable. OBJECTIVE: To investigate the correlation between video
rasterstereography device (VRD) and X-ray photography in terms of validity
and reproducibility (inter- and intra-examiner reliability) in pelvic
parameters. METHODS: Thirty male and female healthy subjects with a mean age
(26.9 ± 4.9 years) participated in this study. Subjects were examined by
VRD for three pelvic parameters (pelvic torsion, pelvic tilt, and pelvic
inclination). Measurements were conducted by three different examiners.
Subjects were examined by X-ray radiography for the same pelvic parameters
as well. Pearson correlation coefficient (r) was used to examine the
validity and Intra-class correlation coefficient (ICC) was used to check
intra- and inter-examiner reliability. RESULTS: For pelvic torsion, tilt, and inclination the validity
levels of VRD were 0.867, 0.996, and 0.930 (P < 0.05), respectively; while the
intra- and inter-examiner reliability coefficients were 0.999, 0.999, and
0.998 and 0.990, 0.997, and 0.989, respectively. CONCLUSION: The results of this study revealed that the VRD has
both high validity and reliability in assessing the selected three pelvic
parameters that reflect the three fundamental planes of movement in healthy
subjects.
Further studies using VRD are recommended to assess low back pain-associated
pelvic parameters.
