Hip ROM/arthrokinematics

Question 1

What are the motions of the hip joint ?

Answer 1

Flexion
Extension
Abduction
Adduction
External Rotation
Internal Rotation

Question 2

What are the norm values for ROM at the hip joint?

Answer 2

Flexion : 0-120°
Extension + Adduction : 0-30°
Abduction, External + Internal Rotation: 0-45°

Question 3

What are the ROM values necessary for gait?

Answer 3

Flexion: 40-60°
Extension: 15-20°

Question 4

What is the resting position for the hip joint?

Answer 4

30° flexion, abduction, and slight ER

Question 5

What is the closed packed position for the hip joint?

Answer 5

Extension, IR, and Abduction

Question 6

What is the capsular pattern for the hip joint?

Answer 6

Flexion, Abduction, and IR

Question 7

What is the end feel of the hip joint?

Answer 7

Firm

Question 8

What does the iliofemoral “Y” ligament do?

Answer 8

Resists ext/ER - strongest ligament in the body

Question 9

What does the Pubofemoral ligament do?

Answer 9

Resists abduction, extension, ER

Question 10

What does the ischiofemoral ligament do?

Answer 10

Provides resistance to extension and IR

Question 11

Open kinetic chain motion

Answer 11

Convex head of the femur moves in opposite direction of joint motion

Question 12

Closed kinetic chain motion

Answer 12

Concave acetabulum moves in the same direction as the pelvis.