Comparison of Electronic Calipers to Conventional Calipers and X-ray Measurement of Spinal Tilt

Study Overview
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Brief Summary
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The objective is to compare the accuracy and reproducibility of measurements taken with electronic calipers and conventional calipers. Using both calipers, reproducibility will be determined by comparing results from a number of practitioners and accuracy will be determined by comparing results with those obtained from X-rays.

Detailed Description
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Participants will have 2 spinal measurements, one at the shoulder and one at the hip, taken by electronic calipers and conventional calipers with different individual research staff. Up to 5 individual research staff will take the 2 spinal measurements on each participant. This will be done to compare variation of measurements between individual operators. The accuracy of the spinal measurements, obtained with electronic and conventional calipers will be compared to the results obtained from x-rays taken of shoulder and hip areas. Only one x-ray of the shoulder and one x-ray of the hip will be taken of each participant. X-rays represent the clinically accepted standard of obtaining spinal measurements. The data will analyzed statistically to determine sources of variation among the methods of spinal measurement described above.

Official Title
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Comparison of Electronic Caliper Measurements of Spinal Tilt to Conventional Caliper and X-ray Measurements of Spinal Tilt

Conditions
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Lower Back Pain

Intervention / Treatment
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* Other: Diagnostic


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria Must be able to have shoulder and hip measurements for spinal tilt Exclusion Criteria: Not able to have shoulder and and hip measurements for spinal tilt.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 75 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Electronic Caliper Measurements<br>This arm would be the spinal diagnostic measurements taken at the hips and shoulders of participants with electronic calipers. | Other: Diagnostic<br>* Measurement of spinal tilt<br>|
| Conventional Caliper Measurements<br>This arm would be the spinal diagnostic measurements taken at the hips and shoulders of participants with conventional calipers. | Other: Diagnostic<br>* Measurement of spinal tilt<br>|
| X-ray Measurements<br>This arm would be the spinal diagnostic measurements taken at the hips and shoulders of participants with x-rays. | Other: Diagnostic<br>* Measurement of spinal tilt<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Accuracy of Electronic Caliper Spinal Measurements | All measurements will recorded in degrees of spinal tilt. | Through study completion, an average of 13 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Accuracy of Conventional Caliper Spinal Measurements | All measurements will recorded in degrees of spinal tilt. | Through study completion, an average of 13 months | 
| Accuracy of X-ray Spinal Measurements | All measurements will recorded in degrees of spinal tilt. | Through study completion, an average of 13 months | 
| Reproducibility of Electronic Caliper Measurements | All measurements will recorded in degrees of spinal tilt. | Through study completion, an average of 13 months | 
| Reproducibility of Conventional Caliper Measurements | All measurements will recorded in degrees of spinal tilt. | Through study completion, an average of 13 months | 
| Reproducibility of X-ray Measurements | All measurements will recorded in degrees of spinal tilt. | Through study completion, an average of 13 months |