16 - rolando's fracture

- described in 1910 by Dr. Rolando;

- involves 3 part frx at base of metacarpal;

- inaddition to volar lip frx (as seen w/ Bennett's frx), there is also large dorsal
frag, resulting in Y or T shaped intra-articular frx;

- frx is a comminuted intra-articular frx at base of thumb metacarpal, even if Y or T is not present;

- frx is uncommon but has a worse prognosis than a Bennet's frx;