Objective: Although it is common to find assertions relating functional leg length inequality (LLI) to pelvic torsion and other states of subluxation, comments and/or data concerning anatomical LLI in this same context are uncommon. This review of the literature synthesizes the evidence on pelvic torsion in relation to anatomical LLI. Methods: The literature was searched using the PubMed; Manual, Alternative, and Natural Therapy Index System; Allied and Complementary Medicine Database; Cumulative Index to Nursing and Allied Health Literature; and Index to Chiropractic Literature databases for primary studies that related LLI, either artificially created or naturally occurring, to pelvic torsion. Extracted data included natural vs artificial LLI, method of creating or detecting LLI, subject selection, methodology for measuring pelvic torsion, and results. Results: Nine English-language studies were retrieved published 1936-2004. Seven determined the impact of artificial, transient LLI on pelvic torsion, whereas 2 studied the effect of naturally occurring LLI. Conclusion: Across varying methodologies for measuring LLI and pelvic torsion, a consistent, dose-related pattern was identified in which the innominate rotates anteriorly on the side of a shorter leg and posteriorly on the side of the longer leg. This finding was contrary to the common assertion that the ilium rotates posteriorly on the side of a short leg and vice versa. Practitioners of manual medicine who derive vectors for intervention based on leg checking procedures should consider the possibility that the direction of pelvic torsion may be variable depending on whether the LLI is of anatomical or functional origin.

Objective: The purpose of this study is to present radiograph utilization at a chiropractic college teaching clinic, the associated patient demographics, and the utilization rates by body region. Methods: Data for outpatient services over a 3-year period were extracted from a college clinic administrative software program. Radiographic data were matched with patient demographic information providing the age, sex, and financial class for all patients. Results: The overall radiograph utilization rate was 8%, with the highest frequency occurring in the spine in the order of lumbar, cervical, and then thoracic regions. Spinal radiographs made up 66% of the total radiographs taken. The utilization rate increased as the age of the patients increased. The average patient age was 46, and 48% were female. Conclusion: The radiograph utilization rate at this teaching clinic was lower than previous studies. This study provides new information regarding overall and regional radiography rates and associated patient demographics from an American chiropractic college.