Clinical Trial Finder

Inclusion Criteria:

• - Males and females age 21-85 without a history of spine surgery.

Exclusion Criteria:

• - History of spine or neural axis surgery.

• - History of cancer with or without metastatic disease.

• - Connective tissue, rheumatologic (or other inflammatory arthropathies), or neurologic disorders.

• - History of knee replacement surgery, as these may have contractures causing unexpected changes in alignment.

• - Severe osteoarthritis of the hips/knees/ankles.

• - Spondylitis.

• - Compression fractures or other trauma of the spinal column.

• - Previous trauma/fractures of the pelvis whether or not surgery was required.

• - Previous trauma or fractures of the lower extremities requiring surgery.

• - Pregnant women.

• - BMI >37.

- Oswestry Disability Index score >25

Current techniques of advanced spinal surgery allow physicians to correct complex spinal deformity to nearly any alignment desired. The investigators ability to analyze spino-pelvic alignment has evolved concurrently; however, the investigators goals in deformity correction are still not completely understood. With increasing ability to assess whole body alignment, the investigators must establish a baseline for the "normal" population inclusive of age related changes. the investigators hypothesis is that global body alignment will vary based on sex and progressively vary with age. The goal of this study is to create an open access database of "normal" volunteer full body radiographic images obtained using the new EOS biplanar x-ray imaging system. The system provides a radiographic view of the weight-bearing skeleton equivalent to plain radiography. The development of an open access database of full body images and global spine parameters will provide spine surgeons with normative data that can be used to guide clinical decision making and surgical planning. Furthermore, the database can be used by researchers to obtain control measurements for comparison in studies of various spine, and potentially non-spine, pathologies. Specific Aims. 1. To create an open access database of radiographic full body images in the sagittal and coronal planes of subjectswithout spine deformities or acute or severe chronic disease, across a range of age groups from 20 to 80 year old males and females. 2. To document age related changes that occur in radiographic parameters in the spine and pelvis by including subjects across a wide range of ages.

Arms

Other: asymptomatic EOS Imaging

patients that qualify for study and EOS imaging to analyze spino-pelvic parameters

Interventions

Radiation: - EOS imaging

The EOS imaging system will be utilized to obtain full-body radiographs in frontal and sagittal projections obtained in the upright standing position. Measurements will include a coronal plumb-line, sagittal vertebral axis (SVA), external auditory meatus plumb-line, cervical lordosis, thoracic kyphosis, lumbar lordosis, hip flexion/extension, knee flexion/extension, ankle flexion/extension, T1 tilt, T1 spino-pelvic instance, acetabular index, pelvic tilt (PT), pelvic incidence (PI), and sacral slope (SS).