Hand / Wrist / Thumbs


Carpometacarpal Joint Injuries Information

Carpometacarpal Joint Injuries


The Carpometacarpal (CMC) joint is the joint of the extension of the thumb to the wrist. The opposing joint surfaces are saddle shaped to allow more movement: flexion/extension, abduction/ adduction,axial rotation.

Anatomy: Hand / Wrist / Thumbs - Injury: Carpometacarpal Joint Injuries Information

Mechanism of Injury

  • Generally due to forced hyperextension and abduction of the first CMC joint.


  • Pain with thumb movements.
  • Tenderness over the CMC joint.
  • Impaired mobility of the thumb.
  • There may be a joint deformity.


Please consult with your medical professional for a complete diagnosis and treatment plan.

Recommended Thermoskin Product

Under the direction of your medical professional and in conjuction with your advised treatment plan, any of the following Thermoskin products are recommended.

Thermal Flexible Thumb Splint

Thermal Flexible Thumb Splint Beige: Left 8*263 Right 8*264. Black: Left 8*163 Right 8*164

Thermal Cross X CMC Thumb Support (CMC)

Thermal Cross X CMC Thumb Support (CMC) Left 8*100 Right 8*101

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