Edmund M. Kosmahl, PT, EdD

 GONIOMETRY WEB SITE


THUMB CARPOMETACARPAL JOINT ABDUCTION

 Thumb CMC Abduction Photo

Test Position

  • Subject sitting with forearm resting on table
  • Wrist neutral
  • Forearm neutral
  • Stabilize carpals to prevent wrist motion

Normal Range

  • 70o (American Academy of Orthopaedic Surgeons)

Goniometer Alignment

  • Axis radial styloid
  • Stationary arm aligned with metacarpal of index finger
  • Moving arm aligned with metacarpal of thumb

Normal End Feel

  • Muscle stretch (adductor pollicus, skin, fascia)

copyright 1999 E. Kosmahl