Hip Flashcards
Part of acetabulum that articulates with the femoral head
Articular Lunate Surface
Acetabular Fossa filled with
Fat
Superior part of acetabulum
Ilium
Anterior part of acetabulum
Pubis
Posterior part of acetabulum
Ischium
Hip Ligaments
Ligamentum Teres
Transverse Acetabular Ligament
Ligamentum Teres
Acetabular Fossa to Femoral Head
Very strong
Transverse Acetabular Ligament
Covers Acetabular notch inferiorly
Transverse Acetabular Ligament used clinically for
Orienting during hip replacements
Blood vessel of Acetabular fossa is within
Ligamentum Teres (it is a branch of obturator artery)
Femur bony ridge
Intertrochanteric line
Femur two axis pro and con
Pro = great mobility
Con = lots of force through neck of femur
Ligaments of hip orientation
Diagonal = force from many directions
Arterial supply to hip
Medial and Lateral Cirxumflex (+ gluteal vessels)
Around femoral neck, is medial circumflex ant or post
Post
Around femoral neck, is lateral Cirxumflex ant or post
Ant
In hip joint capsule, circumflex arteries branch into
Retinacular arteries
Nerves of hip joint
Main = Femoral
But also obtutator, superior gluteal therefore a femoral nerve block wont stop all pain (but will stop most)
Ischemic bone develops
Avascular necrosis
Common group for neck of femur fracture
WOmen with osteoporosis
Two types of neck of femur fractures
Subcapital and Intertrochonteric
Subcapital Neck of femur fracture where
Head / ball split = no blood supply to it = avascular necrosis
Intertrochanteric neck of femur fracture where
True neck = head/ball still gets some blood supply
Hip joint dislocation most common direction
Posterior
When are hip joint dislocations common
After hip replacement surgery as capsule is opened during surgery = weaker
(Normally hip joint is very strong so dislocations uncommon)
