Silberman W W
JACEP. 1979 Sep;8(9):371-3. doi: 10.1016/s0361-1124(79)80262-2.
If the index sesamoid bone is clearly seen in the joint following significant injury to the index metacarpophalangeal joint on radiographic examination, there is the probability of incarceration of the volar plate. In almost all cases, an open reduction will be necessary to re-establish the normal relationship between the second metacarpal and the proximal phalanx. In a case of irreducible dislocation of the index metacarpophalangeal joint, attempted reduction caused the injury to appear as a subluxation.
如果在影像学检查中，示指掌指关节遭受严重损伤后，在关节内可清晰看到籽骨，则掌板可能发生嵌顿。几乎在所有情况下，都需要进行切开复位，以重建第二掌骨与近节指骨之间的正常关系。在一例示指掌指关节不可复性脱位的病例中，尝试复位导致损伤表现为半脱位。
