The metacarpophalangeal prosthesis 1, wherein said head portion of said metacarpal component defines a spherical surface and said means for substantially limiting radial and ulnar deviation further includes a groove formed in said spherical surface, said groove having a curved portion and {HEAD ~ a notched portion} defined by {TAIL ~ a pair} of intersecting walls 
defined by
The metacarpophalangeal prosthesis 1 , wherein said head portion of said metacarpal component defines a spherical surface and said means for substantially limiting radial and ulnar deviation further includes a groove formed in said spherical surface , said groove having a curved portion and { HEAD ~ a notched portion } defined by { TAIL ~ a pair } of intersecting walls
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH