THE HIP JOINT

• eSkeletons.com• Skeletal System PSU

The Pelvis

The Pelvic bone is divided into THREE SECTIONS Ilium Pubis Ischium

Pelvis

The Pelvis - ILIUM

Upper 2/5ths 1. Iliac crest 2. Anterior spine

a. superior b. inferior

3. Sciatic notch

The Pelvis - ILIUM

Iliac crest

The Pelvis – ILIUM (Lateral View)

Sciatic notch

The Pelvis - ISCHIUM

1. Acetabulum

Posterior and lower 2/5ths

The Pelvis - ISCHIUM

The Pelvis - ISCHIUM

2. Ischial tuberosity

The Pelvis - PUBIS

Pubic synthesis/crest

II. The Femur

A. Head B. Neck C. Greater Trochanter D. Lesser Trochanter E. Linea Aspera -

vertical ridge on the posterior surface

F. Lateral Condyle G. Medial Condyle

The Femur

The Femur

1 = Head

2 = Neck

3 = Greater trochanter

4 = Lesser trochanter

5 = Linea Aspera

6= Medial condyle

7= Lateral condyle

1.2.

3.

4.

5.

6.

7.

Anterior Hip

1 = iliac crest

2 = anterior spine

3 = greater trochanter

4 = lesser trochanter

5 = ischial tuberosity

6 = pubis crest

1.

2.

3.

6.5.

4.

Posterior Hip

1 = iliac crest

2 = greater trochanter

3 = ischial tuberosity

4 = lesser trochanter

5 = linea aspera

1.

2.

3.4.

5.

Iliotibial (I.T.) BandIliltibial band

III. The Hip Joint

IV. Movements of the hip

A. Flexion (130º) B. Extension (30º) C. Abduction (35º) D. Adduction (30º) E. Inward rotation (45º) F. Outward rotation (50º)

A. Flexion B. Extension

C. AbductionD. Adduction

E. Inward rotationF. Outward rotation

Movements of the Knee

ExtensionFlexion

V. Movements of the pelvis

Anterior rotation – Iliac crest tilts forward Posterior rotation – Iliac crest tilts backward Right lateral rotation (or tilt) Left lateral rotation (or tilt) Right transverse rotation Left transverse rotation

Motions Accompanying Pelvic Rotation

Pelvic Rotation Lumbar Spine Motion

Right Hip Motion

Left Hip Motion

Anterior rotation Extension Flexion Flexion

Posterior rotation Flexion Extension Extension

Right lateral rotation

Left lateral flexion Abduction Abduction

Left lateral rotation Right lateral flexion Adduction Adduction

Right transverse rotation

Left lateral rotation Internal rotation External rotation

Left transverse rotation

Right lateral rotation

External rotation Internal rotation