What is in the differential diagnoses for isolated bilateral tarsometatarsal joint erosions in the absence of other clinical or serologic evidence of systemic inflammatory arthritis?

Post-traumatic injury is the most common cause, especially mid-foot sprains and fractures, although not usually bilateral unless there is a predisposition such as high arches and osteoarthritis (OA) that can occur due to mechanical stress. Erosive OA can cause these findings, although more commonly ...

Isolated tarsometatarsal (TMT) joint erosions in the absence of other clinical or serologic evidence of an inflammatory arthritis are distinctly unusual. The usual culprits for erosions at the TMT joints include rheumatoid arthritis, spondylarthritis such as psoriatic arthritis, and erosive osteoart...

The differential of isolated TMT arthropathy is difficult to discuss since it is not clear what “isolated” means. It is a different discussion to state the foot radiograph has “isolated” involvement than to say the hands and the feet were assessed by radiograph, and only the foot showed findings. It...