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Palpable unilateral sacral prominence as a clinical sign of lower limb anisomelia: a pilot study
D M Montgomery1, I F Egan, H P Pollard
1School of Medical Radiation Technology, Faculty of Health Sciences, University of Sydney, Australia.
Objective:
To examine the role of oblique-axis sacral torsion in the presence of true or apparent short leg.
Design:
Prospective blind trial of eighteen subjects.
Setting:
A suburban chiropractic practice, a hospital and a university campus.
Subjects:
Of 33 subjects selected, 27 completed the study, 8 exhibited elimination criteria, and 1 X-ray was nondiagnostic.
Main Results:
3 x 3 contingency table showed the presence of unilateral sacral prominence as statistically significant (p > .001) in subjects with LLI. The incidence of unilateral sacral prominence on the short leg side was also significant (p > .05). Weighted kappa confirmed both (alpha > .001).
Conclusions:
Oblique-axis sacral torsion may play a role in intrapelvic adaptation to anisomelia of the lower limb; further examination of this prospect is warranted.