Lecture 5A Flashcards
What direction does the head of the femur face?
Medially, superiorly, and anteriorly
What is the close packed position of the hip
Full ext, internal rotation and abduction
What is the open packed position of the hip
30 flexion, 30 abduction, slight ER
What is the capsular pattern of the hip
Flexion -> Abduction -> IR
Hip Dysplasia vs FAI
Hip dysplasia - undercoverage of femoral head by acetabulum
femoro-acetabular impignement- either excess bone on femur or overcoverage by acetabulum
Coxa valga is any angle over:
139
Coxa vara is any angle under…
125
What is the normal range of the angle of torsion
adults 10-15
infants: 30
anteversion causes _______
toe in and hip IR
retroversion causes __________
toe out and ER
Excessive anteversion is an angle ____________
greater than 15
relative retroversion is _______
absolute retroversion is ________
Less than 10
Less than 0
What is the only muscle that flexes the hip at the end range of flexion
illiopsoas
at the spine: The illiopsoas contraction causes:
Increased lumbar lordosis
The rectus femoris pulls the innominate into _______
anterior tilt
Glute med posterior fibers vs anterior fibers
posterior fibers (tend to be weaker) - extend, Abduct, ER
anterior: Flex Abduct, IR
Patients with sway back posture, spinal DJD, and hip DJD commonly have an atrophied ____________
glute max
What adductor muscle is most commonly strained
adductor longus
What are the 3 most important bursas in the hip
Illiopsos bursa - largest
Trochanteric bursa- split ijnto 3 bursas around greater trochanter
ischiogluteal bursa
The hip joint is innervated by _______, therefore pain from the hip can refer __________
L3
Anywhere in the thigh leg or foot
Blood supply to the femoral head goes through…
Ligamentum teres
Normal hip flexion
ext
110-120
10-15
normal hip abd
and add
30-50
25-30
normal hip IR
ER
30-40
40-60
Hip Arthokinematics:
Flexion:
Extension:
Abduction:
Adduction:
IR:
ER:
