TY - JOUR
T1 - Three-dimensional geometric analysis of the metacarpophalangeal joint
AU - Tamai, K.
AU - Ryu, J.
AU - An, K. N.
AU - Linscheid, R. L.
AU - Cooney, W. P.
AU - Chao, E. Y.S.
PY - 1988
Y1 - 1988
N2 - No prosthesis yet designed for replacement of the metacarpophalangeal (MCP) joint incorporates all considerations of anatomy and geometry of the natural joint to restore the normal kinematics. Loss of stability, recurrent deformity, and early loosening are persistent problems. In this study, a detailed three-dimensional geometric analysis of the MCP joint was performed. The sagittal contours of both metacarpal heads and base of the proximal phalanx under loaded and unloaded conditions were analyzed. The geometric parameters of the MCP joint articulating surfaces were analyzed, including the center and radius of curvature and the location and size of the contact area. The pressures on articulating surfaces during various hand functions were also established. These findings provided important information for better understanding the kinematics of finger joint articulation, as well as the cause of joint degeneration.
AB - No prosthesis yet designed for replacement of the metacarpophalangeal (MCP) joint incorporates all considerations of anatomy and geometry of the natural joint to restore the normal kinematics. Loss of stability, recurrent deformity, and early loosening are persistent problems. In this study, a detailed three-dimensional geometric analysis of the MCP joint was performed. The sagittal contours of both metacarpal heads and base of the proximal phalanx under loaded and unloaded conditions were analyzed. The geometric parameters of the MCP joint articulating surfaces were analyzed, including the center and radius of curvature and the location and size of the contact area. The pressures on articulating surfaces during various hand functions were also established. These findings provided important information for better understanding the kinematics of finger joint articulation, as well as the cause of joint degeneration.
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U2 - 10.1016/S0363-5023(88)80088-1
DO - 10.1016/S0363-5023(88)80088-1
M3 - Article
C2 - 3418053
AN - SCOPUS:0023684635
SN - 0363-5023
VL - 13
SP - 521
EP - 529
JO - Journal of Hand Surgery
JF - Journal of Hand Surgery
IS - 4
ER -