Hip Joint Plan Flashcards
Classify the hip joint
Synovial ball and socket joint
What are the bones / articulation of the hip joint?
Acetabulum made from ilium, pubis and ischium
Articulates with head of femur
What type of cartilage is at the hip joint & what is its function?
Hyaline cartilage
Reduce friction and shock absorption
What are the 3 bursae at the hip joint?
- Trochanteric bursa - subgluteus medius bursa and subgluteus maximus bursa
- Iliopsoas bursa
- Ischial bursa
Describe the capsule of the hip joint
Attached to articular margins and is tight posteriorly, strengthened by ligaments
Describe the synovial membrane of the hip joint
- Lines the capsule
- Secrets synovial fluid which nourishes cartilage
- Removes waste
- Reduced friction
Name the ligaments of the hip joint
- Iliofemoral ligament
- Pubofemoral ligament
- Ischiofemoral ligament
- Ligamentum teres
How many degrees of freedom is at the hip?
3
What are the permitted movements at the hip joint?
Extension / Flexion
Abduction / Adduction
Internal / External rotation
Circumduction
What arteries supply the hip?
- Circumflex artery
2. Branches of deep femoral and branch of obturator artery in ligamentum teres
What nerves supply the hip?
Branches of the femoral, obturator, gluteal and sciatic nerves
Name the hip extensors
- Gluteus maximus
- Biceps femoris
- Semitendinosus
- Semimembranosus
Name the hip flexors
- Psoas major
- Iliopsoas (iliacus and psoas major)
- Rectus femoris
- Sartorius
- Pectineus
Name the hip adductors
THREE DUCKS PECKING GRASS
- Pectineus
- Adductor brevis
- Adductor longus
- Adductor magnus
- Gracilis
Name the hip abductors
- Gluteus medius
- Gluteus minimus
- Tensor facia latae
Name the medial hip rotators
- Gluteus medius (anterior part)
- Gluteus minimus (anterior part)
- Tensor facia latae
Name the lateral hip rotators
- Piriformis
- Gemellus superior
- Obturator internus
- Gemellus inferior
- Obturator externus
- Quadratus femoris
Gluteus maximus
- Origin
- Insertion
- Action
- Innervation
1. Lateroposterior surface of sacrum and coccyx Gluteal surface of ilium(behind posterior gluteal line) 2. Iliotibial tract Gluteal tuberosity of femur 3. Extends thigh at hip Laterally rotates thigh at hip Abducts thigh at hip 4. Inferior gluteal nerve (L5, S1,S2)
Gluteus medius
- Origin
- Insertion
- Action
- Innervation
- Outer surface of ilium, between the posterior and anterior gluteal lines
- Lateral and superior surfaces of the greater trochanter
- Abducts thigh at hip
Anterior fibres - medially rotate the thigh
Posterior fibres - laterally rotate the thigh - Superior gluteal nerve (L5, S1)
Gluteus minimus
- Origin
- Insertion
- Action
- Innervation
- Outer surface of ilium, between the anterior and inferior gluteal line
- Anterior surface of the greater trochanter of the femur
- Abducts thigh
Anterior fibres - medially rotate thigh - Superior gluteal nerve (L5, S1)
Piriformis
- Origin
- Insertion
- Action
- Innervation
- Anterior surafec of lateral sacrum
- Greater trochanter along its upper medial surface
- Laterally rotates thigh
- Branch of sacral plexus (S1, S2)
Quadratus femoris
- Origin
- Insertion
- Action
- Innervation
- Ischial tuberosity
- Quadrate tubercle near base of greater trochanter and intertrochanteric crest of femur
- Laterally rotates thigh
- Branch of sacral plexus (S1, S2)
Tensor facia latae
- Origin
- Insertion
- Action
- Innervation
- Anterior iliac crest
- Lateral condyle of tibia via iliotibial tract
- Abducts thigh at hip
Medial rotates hip - Superior gluteal nerve (L4,L5,S1)
Adductor brevis
- Origin
- Insertion
- Action
- Innervation
- Lateral surafce of inferior ramus of pubis
- Proximal portion of linae aspera
- Adducts thigh at hip
- Obturator nerve (L3, L4)