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Casing the Joint
1
Hip Joint
Jaina Dinino
Ball-and-Socket Joint
Type of Joint
- Multiaxial
- Some limited movement
Characteristics
Acetabular Labrum
- A circular rim of fibrocartilage that enhances the acetabulum
The hip joint is able to carry out...
Movement
- flexion
- extension
- abduction
- adduction
- lateral rotation
- medial rotation
Muscles
Muscles
Types/Movement
Iliopsoas: helps flex the thigh
Rectus femoris: muscle of the quad that flexes the thigh at the hip
Sartorius: flexes, abducts, and laterally rotates thigh
Pectineus: adducts, flexes, and medially rotates thigh
Hamstrings: made of three muscles that extend the thigh
Gluteus maximus: extends thigh
Gluteus medius: abducts and medially rotates thigh
Gluteus minimus: abducts and medially rotates the thigh
Piriformis: rotates extended thigh laterally
Tensor fascia latae: flexes, abducts and medially rotates the thigh
Adductors: muscle mass consisting of three muscles that adduct, rotate, and flex the thigh
Types/Movement Cont
Gracilis: adducts thigh, flexes and medially rotates leg
Obturator externus: rotates extended thigh laterally
Obturator internus: rotates extended thigh laterally
Gemellus: rotates extended thigh laterally
Quadratus femoris: rotates thigh laterally and stabilizes hip joint
Tendons and Ligaments
Tendons and Ligaments
strong V-shaped anterior ligament
Iliofemoral ligament
Pubofemoral ligament
triangular thickening of the inferior part of the capsule
a spiraling posterior ligament
Ischiofemoral ligament
Ligament of the head of the femur: a flat intracapsular band that runs from the femur head to the lower lip of the acetabulum
Ligamentum teres
Injuries/Medical Conditions
Injuries/Medical Conditions
Dislocation
- occurs when the ball at the head of the femur slips out of socet
- causes severe pain and immobility of the leg
Disslocation
Labral Tear
- damage to the cartilage surrounding the bony edge of the socket in the pelvis
- can be the result of osteoarthritis, a fall, or overuse of the joint
Bursitis
Bursitis
- The swelling and inflammation the bursae
- Causes pain and aching in the hip and on the outside of the thigh
- It is aggravated with walking or any activity that causes the tendon to move over the bone