Inside major lower limb joints Flashcards
Teres
Sausage-shaped
Valgus
Deformity away from midline
Varus
Deformity towards midline
Genu valgus
Knock-knees
Genu varus
Bow legs
Coxa valgus
Increased angle between femoral neck and shaft
Coxa varus
Angle between femoral head and shaft is less than 120 degrees
Ligaments
Connect bone to bone
What is the innominate bone made from?
Ischium, ilium and pubic bone
What is the acetabulum fossa?
Depressed articular surface where bones meet
What are the trochanters?
Two tubercles, have greater and lesser trochanters
What is the trochanteric crest?
Connects trochanters
What is the intertrochanteric fossa?
Gap between condyles
Key features of innominate bone
- Acetabular fossa
- U-shaped articular surface
- Superior pubic ramus
- Anterior iliac spine
- Ischial tuberosity
Key features of femur
- Head
- Neck
- Greater and lesser trochanters
- Intertrochanteric line
- Intertrochanteric crest
- Linear aspera
- Medial and lateral condyles
- Medial and lateral epicondyles
- Intercondylar notch
What are the two intracapsular hip ligaments?
Transverse acetabulum ligament
Ligamentum teres
Where is the ligamentum teres?
Behind transverse acetabular ligament, supplies blood to femoral head and connects it to hip
What does transverse acetabular ligament do?
Joins acetabulum together
What are the extra capsular hip ligaments?
Iliofemoral ligament
Pubofemoral ligament
Ischiofemoral ligament
What does iliofemoral ligament do?
Prevents hyperextension of the hip
What does pubofemoral ligament do?
Reinforces capsule, limits abduction
What does ischiofemoral ligament do?
Holds femoral head in acetabulum, extension to 20 degrees
What are the main sources of blood to the head of the femur?
Artery inside ligamentum teres
Reticular branches
Osteological arteries