Three-dimensional geometric analysis of the metacarpophalangeal joint

K. Tamai, J. Ryu, K. N. An, R. L. Linscheid, W. P. Cooney, E. Y.S. Chao

Research output: Contribution to journalArticle

55 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)521-529
Number of pages9
JournalJournal of Hand Surgery
Volume13
Issue number4
DOIs
StatePublished - Jan 1 1988

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

Fingerprint Dive into the research topics of 'Three-dimensional geometric analysis of the metacarpophalangeal joint'. Together they form a unique fingerprint.

  • Cite this

    Tamai, K., Ryu, J., An, K. N., Linscheid, R. L., Cooney, W. P., & Chao, E. Y. S. (1988). Three-dimensional geometric analysis of the metacarpophalangeal joint. Journal of Hand Surgery, 13(4), 521-529. https://doi.org/10.1016/S0363-5023(88)80088-1