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Glite Dictionary
🤚 A wrist bone 🔷 A four-sided figure
trapezium

trapezium

1 7.9
A small bone in the wrist on the thumb side that connects to the base of the thumb
  • noun
  • /trəˈpiːziəm/
  • Specialized
translation icon : trapecio
  • The trapezium is located at the base of the thumb and connects to the first metacarpal bone.
  • surface of the trapezium

And that corresponds to the scaphoid, lunate, triquitril, pisiform, trapezium, trapezoid, recapitate and hamate.

Examples

  • Following the resection of the distal surface of the trapezium and the base of the first metacarpal bone with a sagittal saw, the implant sizer was placed flat on the surface of the trapezium.

    Academic text (2015)

  • The authors also noted that the Artelon procedure is not as invasive because the trapezium is not excised, allowing for more invasive surgery later, if needed.

    Academic text (2011)

  • The Artelon spacer prevents impingement between the trapezium and metacarpal bones.

    Academic text (2011)

  • An open, controlled, prospective pilot study was performed, in which the control group patients received trapezium excision with APL tendon interposition.

    Academic text (2011)

  • Using a sagittal saw, 2 mm of the first metacarpal base and the distal surface of the trapezium were resected, producing a 4 mm gap.

    Academic text (2015)

  • The risks associated with the LRTI method include injury to the FCR tendon because it lies underneath the ulnar aspect of the trapezium.

    Academic text (2011)

  • The metacarpal base was resected first, followed by the distal trapezium because it enabled better visualization of the trapezium for resection.

    Academic text (2015)

  • Care was taken to preserve the flexor carpi radialis tendon as it passes through the groove in the trapezium.

    Academic text (2015)

  • One of the first surgical therapies used to treat CMC OA was complete excision of the trapezium, i.e., trapeziectomy.

    Academic text (2011)

  • In an attempt to maintain a better foundation of the first metacarpal, a hemitrapeziectomy can be performed to keep the proximal portions of the trapezium as an osseous base, hopefully reducing thumb subsidence.

    Academic text (2011)

Synonyms

trapezium bone
vstrapezium
  • Specialized
8.3

A small wrist bone near the thumb that helps it move

is the shorter standard English anatomical name without the extra word
os trapezium
vstrapezium
  • Specialized
9.8

A small wrist bone on the thumb side that joins the base of the thumb and index finger

is the regular English term used outside Latin medical naming

Compounds

os trapezium
  • Specialized
9.8

A small wrist bone on the thumb side that joins the base of the thumb and index finger

trapezium bone
  • Specialized
8.3

A small wrist bone near the thumb that helps it move

Surface Forms

trapezium singular
trapeziums plural

Etymology

Trapezium comes from the Greek trapezion, meaning 'little table'. Because this small wrist bone is roughly table-shaped and sits at the base of the thumb, it keeps the same name as the bone on the thumb side of the wrist.