Radiographic evaluation of arthritis: inflammatory conditions Jon A. Jacobson, Gandikota Girish, Yebin Jiang, and Donald Resnick Radiology :2,

 Hypertrophic/proliferative  Degenerative: primary or secondary  Secondary AKA atypical OA Hemophilia Gout trauma  Erosive  Rheumatoid + variants  Infectious  TB  Pyogenic/bacterial

 Synovial proliferation  Pannus  Inflammatory erosions  Uniform joint space narrowing  Soft-tissue swelling  RA + seronegative variants  Reiters  Ankylosing spondylitis  Enteric arthropathy  Psoriatic arthropathy

 Multiple joints: systemic  Periarticular osteopenia  Juxtaarticular bony erosions (non-cartilage non-protected bone)  Subluxation and gross deformity  Periarticular soft tissue swelling

Younes, Mohamed, et al. "Compared imaging of the rheumatoid cervical spine: prevalence study and associated factors." Joint Bone Spine 76.4 (2009): The prevalence of rheumatoid cervical spine involvement was 47.5% by standard radiography, 28.2% by CT, and 70% by MRI.  Rheum involvement with high Sharp score and elevated CRP  17.5% of those with Cspine abn were w/o sx.  Overall rheumatoid involvement of the cervical spine was not significantly associated with any of the epidemiological, clinical, laboratory, imaging, or therapeutic factors evaluated in the study.

Criteria: SI and facet joints normal 4 contiguous vertebrae No disc space narrowing

 Subchondral sclerosis, osteophytes  No erosions  Asymmetric joint space  Nearly all arthritides can lead to DJD *Weight-bearing radiograph for early detection Mobius battle

 Microtrauma – not just body habitus but body habits AKA repeated use

Monu, Johnny UV, and Thomas L. Pope Jr. "Gout: a clinical and radiologic review." Radiologic Clinics of North America 42.1 (2004):