Outline

1-Describe the articulation of the Radius with the carpal bones, and how this is different than the articulations of the Ulna:

2-What is the load distribution of the radius and ulna with and without the TFCC?

With

Without

How does this relate to the articulations of the Radius & Ulna?

How does this impact function?

• What is the midcarpal joint and why does it allow more motion than individual intercarpal joints?

4-How does muscle activation of the wrist flexors/extensors impact the midcarpal joint?

5-Describe the stable segment of the wrist/hand:

6- What is the functional impact/purpose of having a mobile segment and a fixed segment (grasp)?

7- How is this anatomically different from No Man’s Land of the hand, and why is it called this?

• What does each of the following ligaments limit at the wrist?
  1. Ulnar Collateral Ligament:
  2. Radial Collateral Ligament:
  3. Palmar Radiocarpal Ligament:
  4. Dorsal Radiocarpal Ligament:
  5. Palmar Ulnocarpal Ligament:

• What ligament is most likely to get injured during a FOOSH injury and why is this ligament so important?

• List 3 different examples of wrist hand injury after a Fall Onto an Outstretched Hand (FOOSH)

1

2

3

• Your patient had been casted for a non-displaced, intraarticular, distal radius fracture x 8 week. You are seeing him for the first time (after the cast has been removed) in outpatient OT clinic.  What joint (radiocarpal or midcarpal) would be affected based on the fracture?

What wrist motions would you expect to be most limited when testing AROM with the goniometer?

Normally, does the radiocarpal joint provide more flexion or extension?

• Define the following specialty tests, including the structures being tested and why you would get the corresponding positive result:

Supination Lift Test:

Sharpey’s Test:

Ulnar Fovea Sign:

Finkelstein’s Test:

Phalen’s Test & Reverse Phalen’s Test:

TinelSign at the Anterior Wrist& at Guyon’s Canal:

Allen’s Test:

Last Updated on January 29, 2018