Functional anatomy and biomechanics of the thumb

T. Imaeda, K. N. An, W. P. Cooney

Research output: Contribution to journalReview articlepeer-review

56 Scopus citations


The thumb is a mechanical unit consisting of strong ligaments and dynamic muscles, providing the resistance to the fingers and palm during pinch and grip. Each thumb joint has a mechanical equivalent that helps explain elements of thumb stability. The trapeziometacarpal joint is potentially the most unstable but has adapted to its unique position by special joint geometry and, in particular, a combination of support ligaments that permit a wide range of motion yet stability. New anatomic and mechanical studies demonstrate the key support structures that must be duplicated by reconstructive surgical procedures if thumb stability is to be maintained.

Original languageEnglish (US)
Pages (from-to)9-15
Number of pages7
JournalHand Clinics
Issue number1
StatePublished - Jan 1 1992

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine


Dive into the research topics of 'Functional anatomy and biomechanics of the thumb'. Together they form a unique fingerprint.

Cite this