case_images: PMC8566075_01
case_images: Initial X-ray showing trapeziometacarpal osteoarthritis.
case_images: CRIOR2021-6881168.001.jpg
case_images: PMC8566075_01_CRIOR2021-6881168.001.jpg
case_images: fig1
case_images: Thus, this was a case of rhizarthrosis Grade IV according to the classification of Eaton, associated with hyperextension of the metacarpophalangeal joint (Figure 1).