Musculoskeletal: Lower Extremity: Femoroacetabular Joint: Osteokinematics and Arthrokinemtatics

Question 1

Femoralacetabular Joint

Osteokinemtaic: Flexion

Answer 1

• Arthrokinematics of the Hip Joint during flexion in an OPEN KINETIC CHAIN:
• In the open kinetic chain the convex head of the femur will roll ANTERIOR and glide POSTERIOR on the concave acetabulum.
• Arthrokinematics of the Hip Joint during flexion in a CLOSED KINETIC CHAIN:
• In the closed kinetic chain the concave acetabulum will roll and glide ANTERIORLY on the fixed convex head of the femur.

Question 2

Femoralacetabular Joint

Osteokinemtaic: Extension

Answer 2

• Arthrokinematics of the Hip Joint during extension in an OPEN KINETIC CHAIN:
• In the open kinetic chain the convex head of the femur will roll POSTERIOR and glide ANTERIOR on the concave acetabulum.
• Arthrokinematics of the Hip Joint during extension in a CLOSED KINETIC CHAIN:
• In the closed kinetic chain the concave acetabulum will roll and glide POSTERIORLY on the fixed convex head of the femur.

Question 3

Femoralacetabular Joint

Osteokinemtaic: Abduction

Answer 3

• Arthrokinematics of the Hip joint during abduction in an open kinetic chain.
• In the open kinetic chain the convex head of the femur will roll LATERALLY and glide MEDIALLY on the concave acetabulum.
• Arthrokinematics of the Hip joint during abduction in a closed kinetic chain.
• In the closed kinetic chain the concave acetabulum will roll and glide LATERALLY on the convex femur.

Question 4

Femoralacetabular Joint

Osteokinemtaic: Adduction

Answer 4

• Arthrokinematics of the Hip joint during adduction in an open kinetic chain.
• In the open kinetic chain the convex head of the femur will roll MEDIALLY and glide LATERALLY on the concave acetabulum.
• Arthrokinematics of the Hip joint during adduction in a closed kinetic chain.
• In the closed kinetic chain the concave acetabulum will roll and glide MEDIALLY on the convex femur.

Question 5

Femoralacetabular Joint

Osteokinemtaic: Internal Rotation

Answer 5

• Arthrokinematics of the Hip joint during internal rotation in an open kinetic chain.
• In the open kinetic chain the convex head of the femur will roll MEDIALLY and glide LATERALLY on the concave acetabulum + some MEDIAL spin.
• Arthrokinematics of the Hip joint during internal rotation in a closed kinetic chain.
• In the closed kinetic chain the concave acetabulum will roll and glide MEDIALLY on the convex femur.

Question 6

Femoralacetabular Joint

Osteokinemtaic: External Rotation

Answer 6

• Arthrokinematics of the Hip joint during external rotation in an open kinetic chain.
• In the open kinetic chain the convex head of the femur will roll LATERALLY and glide MEDIALLY on the concave acetabulum + some LATERAL spin.
• Arthrokinematics of the Hip joint during external rotation in a closed kinetic chain.
• In the closed kinetic chain the concave acetabulum will roll and glide LATERALLY on the convex femur.