A metacarpophalangeal prosthesis includes a metacarpal component having {HEAD ~ a head portion} and a phalangeal component having {TAIL ~ a socket portion} 
A metacarpophalangeal prosthesis includes a metacarpal component having { HEAD ~ a head portion } and a phalangeal component having { TAIL ~ a socket portion }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL