Interphalangeal Joint Mobilizations [with Convex-Concave Rules]

The video tutorial explains the mobilization of interphalangeal joints, focusing on the proximal interphalangeal (PIP) joint. It discusses the structure of the thumb and other digits, highlighting the concave-convex rule for determining the direction of mobilization. The tutorial provides practical examples of mobilizing joints for extension and flexion, emphasizing that the role and slide are in the same direction for concave moving on convex surfaces. The video concludes with a focus on flexion and extension as the primary movements in hinge joints.

What is the primary focus of mobilization in the video?

• Carpometacarpal joint

• Metacarpophalangeal joint

• Distal interphalangeal joint

• Proximal interphalangeal joint

In the context of joint mobilization, what is the relationship between the middle and proximal phalanges?

• Both are convex

• Both are concave

• Middle is convex, proximal is concave

• Middle is concave, proximal is convex

When mobilizing a joint with a concave surface moving on a convex surface, how do the roll and slide directions relate?

• They are in opposite directions

• They are in the same direction

• They are perpendicular

• They are unrelated

To improve extension at the proximal interphalangeal joint, in which direction should the middle phalanx be mobilized?

• Medially

• Laterally

• Ventrally

• Dorsally

If you want to enhance flexion at the distal interphalangeal joint, which direction should you mobilize the distal phalanx?

• Dorsally

• Medially

• Palmar

• Laterally