LL Fractures: Hip Dislocation Flashcards
What type of fracture is the hip fracture
Synovial ball and socket
What makes hip joint stable
Deep acetabulum
Strong capsule
Ligaments and acetabulum labrum
Muscles
Blood supply of the head
Ligamentum teres from acetabular artery
Interosseous from femoral artery
Exteaosseous from retinacular branches of medial and lateral
Most common cause or posterior dislocation of hip
Dash board injury
How do you clinically detect posterior hip disloction
Deformity: adduction flexion internal rotation shortening of the limb
How do you detect dislocation radiologically
Empty acetabulum+ dislocation of head femur+ displaced posterior
Absent lesser trochanter by internal rotation
Disturbed shenton line
What is shenton line
C shaped radiological line from medial edge of inferior femoral neck to from inferior border of superior pubic ramus
What is the treatment of posterior dislocation Hip
Closed reduction: Flexion Traction + External Rotation
Open reduction: failure of closed or associated fractures
What is the most common posterior hip dislocation
Avascular Necrosis of Head
Posterior hip dislocation complications
AVN of head
Sciatic nerve injury Leading to foot drop
Associated Fractures
Stiffness/ Arthritis
What is the most common cause of anterior hip dislocation
Air Crash Injury
What is the most common of central hip dislocation
Fall on side acetabulum
