Anatomy - The Hip Joint Flashcards
What does the hip joint sacrifice
Mobility for stability
What does the joint capsule allow
Recycling of synovial fluid
Fovea
Pit in head of femur
Provides attachment of ligamentum teres
Ligament Teres
Provides blood supply to head of femur from fovea artery
Runs from obturator artery through the obturator foremen into the acetabular notch
Which ligament stabilises the hip joint
Transverse acetabular ligament
Acetabular labrum
Ring of cartilage around outer edge of acetabulum
Ligaments that reinforce stability in hip but limit extension
Ilio-femoral ligament
Pubo-femoral ligament
Ischio-femoral ligament
Ilio-femoral ligament
Passes from ilium to femur
Consists of two bands
Pubo-femoral ligament
Passes from pubis to femur
Ischio-femoral ligament
Passes from ischium to femur
Found posteriorly
Blood supply to head of femur
Retinacular vessels from Profunda femoris
Ligamentum Teres
Retinacular vessels
Arise from cruciate anastomosis
Travel up NOF to provide blood supply but only after growth plate have fused
Ligamentum Teres in blood supply
Remains patent until succumbed to wear and tear and becomes stenosed
Implications of intracapuslar NOF fracture in someone who is older
No blood supply to hof and becomes ischaemic —-> avascular necrosis
Requires hemi or total hip arthroplasty
Treatment of intracapsular NOF fracture in younger patients
Dynamic hip screw
