694bb179_WRIST__2
[0] (These tests may be repeated in similar fashions to assess the collateral stability of the Distal Interphalangeal Joints or D.I.P. Joints.) [1] Position the patient so that the pronated forearm and hand are supported in a relaxed position on the table. [3] This same test may then be reversed by distracting the intermediate phalanx ulnarly to stress the radial collateral ligament. Again, maintain the joint in 15 to 20 degrees of flexion while stabilizing the proximal phalanx with one hand. Use the other hand to ulnarly distract the intermediate phalanx which stresses the radial collateral ligament of the proximal interphalangeal joint. While applying the stress, visualize and feel for abnormal opening of the joint as compared to the uninvolved joint of the other hand. Again, there should be a slight opening with a firm end point. The absence of a firm end point accompanied by associated sensations of pain or instability indicates a radial collateral ligament sprain. [2] 
Assesses the radial collateral ligaments of the finger joints
WRIST