first metacarpal bone

(redirected from Thumb metacarpal)

first metacarpal bone

the metacarpal bone of the thumb.
References in periodicals archive ?
The TMC joint is at the base of the thumb metacarpal.
3,16) The articular surfaces of the thumb metacarpal base and trapezium resemble reciprocally interlocking saddles, allowing for flexion-extension, abduction-adduction, and rotation.
Primary bony tumors of the thumb metacarpal are a rare and challenging problem [1].
To that end, thumb metacarpal fractures can be immobilized in a functional position.
However, only the thumb metacarpal movement was quantified in terms of distance within a plane and flexion-extension and abduction-adduction angles.
He said, 'This was a severe fracture that involved the joint at the base of the right thumb metacarpal.
The FPL inserts on the volar thumb distal phalanx base, APL on the thumb metacarpal base, EPB on the thumb proximal phalanx base, and the EPL on the thumb distal phalanx base.
An incision is made extending over the thumb metacarpal along the radial insertion of the thenar muscles, curving proximally and ulnarly along the distal wrist crease to the FCR tendon.
A biomechanical study was done to determine thumb metacarpal base stability after basal joint reconstruction.
The examination of a patient with an acute fracture will reveal tenderness on palpation in the anatomic snuffbox, pain on palpation of the distal tuberosity volarly, pain on axial compression of the thumb metacarpal (scaphoid compression test), decreased range of motion, and swelling.