title: Palpable unilateral sacral prominence as a clinical sign of lower limb anisomelia: a pilot study.
abstract: OBJECTIVE
  To examine the role of oblique-axis sacral torsion in the presence of true or apparent short leg.
  
  
  METHODS
  Prospective blind trial of eighteen subjects.
  
  
  METHODS
  A suburban chiropractic practice, a hospital and a university campus.
  
  
  METHODS
  Of 33 subjects selected, 27 completed the study, 8 exhibited elimination criteria, and 1 X-ray was nondiagnostic.
  
  
  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.
authors.affiliation: School of Medical Radiation Technology, Faculty of Health Sciences, University of Sydney, Australia.
authors.forename: D M
authors.initials: DM
authors.lastname: Montgomery
authors.forename: I F
authors.initials: IF
authors.lastname: Egan
authors.forename: H P
authors.initials: HP
authors.lastname: Pollard
mesh_terms: D000222:Adaptation, Physiological; D000328:Adult; D000368:Aged; D001696:Biomechanical Phenomena; D002684:Chiropractic; D005260:Female; D006801:Humans; D015994:Incidence; D007870:Leg Length Inequality / Q000000981:diagnostic imaging / Q000473:pathology* / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D010173:Palpation / Q000379:methods*; D011237:Predictive Value of Tests; D011446:Prospective Studies; D011859:Radiography; D012447:Sacrum / Q000473:pathology*; D016037:Single-Blind Method; D014102:Torsion Abnormality