Shoulder Motion Guided Patient Diagnostic and Treatment Classification

Shoulder disorders account for the second largest number of musculoskeletal cases in the
United States with a large health care burden. The current standard for diagnosis of shoulder
disorders is a clinical exam, visual motion assessment and in some cases, costly magnetic
resonance (MR) imaging. However, specific tissue pathologies are not always accurately
identified, and often not directly linked to the magnitude of dysfunction. There is a need
for categorizing or sub-grouping patients based on the underlying movement dysfunctions with
which they present. Video fluoroscopy is a common clinical tool that can improve the accuracy
of motion analysis. The investigators are using 2-D fluoroscopy, combined with 3-D MR imaging
to measure shoulder motion. From the motion analysis we can predict areas of potential soft
tissue disease, and compare these to disease locations from MR imaging. The investigators
hypotheses is that our motion based predicted disease locations will be significantly
associated with disease locations from MR imaging.

Inclusion Criteria:

- Normal subjects with normal normal shoulder movement and function will be included,
age and gender matched to symptomatic subjects.

- Symptomatic subjects will be included if visual shoulder movement deviates from what
might be considered normal; they are experiencing shoulder pain with movement, and
clinical examination is consistent with soft tissue cumulative trauma to the soft
tissues (rotator cuff disease).

- Clinical MR imaging will be used to confirm rotator cuff disease, subacromial
bursitis, and/or bicipital tendinitis.

Exclusion Criteria:

- Age outside the accepted range. Contraindications to radiation exposure (pregnancy or
possible pregnancy, other recent substantive radiation exposures (CT scanning,
treatments involving radiation). Subjects unable to move through at least 90 degrees
of shoulder motion will also be excluded.