Hip 1 Flashcards
What are the primary functions of the hip and pelvis?
Anchors the axial skeleton and the appendicular skeleton, support body weight, locomotion.
List the bones that make up the pelvis/ 2 hemipelvis’ (innonimate bones)
- Ilium
- Ischium
- Pubis
Classify the hip joint with proper name
Femeroacetabular Joint
Synovial, polyaxial, ball and socket.
How many degrees of movement does the hip joint allow?
3 degrees: Flexion/Extension, Abduction/Adduction, Medial and Lateral Rotation.
Name the key bony landmarks of the pelvis.
Iliac Crest
1. Anterior Superior Iliac Spine (ASIS)
2. Anterior Inferior Iliac Spine (AIIS)
3. Pubic Tubercle
4. Pubic Symphysis
5. Posterior Superior Iliac Spine (PSIS)
6. Ischial Tuberosity
7. Pubic Rami
What is the clinical relevance of the neck of femur?
It is a common site of fracture in falls of the elderly.
What is the structure of the acetabulum?
Lunate surface of hyaline cartilage, thickest above and centrally, with a non-articular region covered with fat.
What are the ligaments of the hip joint?
- Iliofemoral ligament
- Pubofemoral ligament
- Ischiofemoral ligament
- Ligamentum Teres
Fill in the blank: The _______ is a fibro-cartilaginous rim in the hip joint.
Acetabular Labrum
What does the iliofemoral ligament limit?
- Extension
- Abduction
What limits the extension and abduction in the hip joint?
Iliofemoral ligament
Pubofemoral ligament
True or False: The sacro-iliac joint is a synovial, plane joint.
True
What is the role of the sacrotuberous and sacrospinous ligament?
Limits nutation of the sacrum and posterior rotation of the ilium.
What anatomical variance can affect squat stance?
Femoral neck inclination and version.
List the ligaments associated with the sacro-iliac joint.
Anterior sacro-iliac ligament
Interosseous sacro-iliac ligament
Posterior sacro-iliac ligament
What is the morphology of the hip joint that contributes to its stability?
- Strong surrounding ligaments
- Cup-shaped acetabulum
- Deepened by the acetabular labrum
- Strong capsule
- Vacuum effect of ball within socket
- Arrangement of powerful surrounding muscles
Iliofemoral ligament attachments and limitations
Anterior ligament
Formed by two bands
From: AIIS
To: intertrochanteric line on prox femur
Superior band limits: extension and adduction
Inferior band limits: extension and abduction
Pubofemoral ligament attachments and limitations
From: The ilio-pubic eminence
To: inferior band of iliofemoral ligament on inertrochanteric line
Limits: extension and abduction
Ischiofemoral ligament attachments and limitations
Lies deep to iliofemoral ligament
From : ischial part of acetabular rim (posterior)
To: anterior part of greater trochanter
Limits: Extension and Medial Rotation
Ligamentum Teres attachments
Head of femur
From: acetabular notch
To: a pit in the head of femur (Fovea)
(Carries Obturator artery)
Inguinal Ligament
not a ligament
From: ASIS
To:Pubic Tubercle
What limits medial rotation of hip joint?
Ischiofemoral ligament
Classification of sacro-iliac joint
Synovial,Plane joint
Movements available at Sacro-Iliac Joint
Nutation and Counternutation
