"these are intra-articular fractures that result from axial loading or direct trauma; collateral ligament avulsion fractures are caused by forced deviation of the flexed metacarpophalangeal joint (MCPJ)."
"Bennett fracture dislocation"
"Rolando fracture"
"these are usually a result of axial loading or direct trauma (clenched fist and solid surface); torsional force may also result in this type of injury"
"these are intra-articular fractures that result from axial loading or direct trauma; collateral ligament avulsion fractures are caused by forced deviation of the flexed metacarpophalangeal joint (MCPJ)."