quiz #3 - hip & knee (kahoot) Flashcards
(42 cards)
ligament of the hip that is intra-articular, supports vascular supply to the femoral head and acts as a hip stabilizer
ligamentum teres
most common mechanism of injury for a hip dislocation is a car accident where the femur is forced _____
posteriorly
all the following are true of the acetabular labrum of the hip EXCEPT?
-mechanisms of injury are twisting, hyperextension
-stabilizes the hip during flexion
-made up of dense, fibrocartilage
-is mostly avascular
does NOT stabilize hip during flexion
stabilizes the hip during lateral rotation while also preventing anterior translation
snapping in the hip can be caused by what?
-tight ITB, snapping over iliopectineal eminence
-slipping of iliopsoas over lesser trochanter of femur (45º when hip moves from flex to ext)
-acetabular labral tear
which bursitis can mimic sciatic pain & can present with an antalgic gait with the patient leaning towards affected side
ischial bursitis
which bursitis has pain at the anterior hip and may radiate down anterior leg due to pressure on femoral nerve
iliopectineal bursa
which observations would you be likely to see in a patient with an iliotibial band contracture?
-lateral pelvic tilt on contracted side
-indentation on lateral aspect of thigh
-valgus orientation of knee on contracted side
-pes planus on affected side
NOT: varus orientation of knee on contracted side
typical causes of ACL injuries
-pivoting motion of leg
-blow to posterior tibia
-blow to lateral side of knee
-often injured with MCL
NOT: dashboard injury where tibia is forced posteriorly
causes of PCL injuries
-blow to anterior tibia
-excessive hyperextension
-MVA, where tibia is forced posteriorly
Genu varum is also referred to as _____
bow legs
genu valgum = knock-knee
patella tilted outward
gross hopper eyes
inward: squinting patella
rotated: spin in/ spin out
high riding: patella alta
low riding: patella baja/ infera
this bursa is most likely inflamed if pain is worse when climbing stairs and getting out of a car
trochanteric
this ligament prevents excessive extension of the hip and is one of the strongest ligaments in the body
iliofemoral
what is the closed packed position of the hip?
full extension, internal rotation, abduction
resting position of the hip
30º flexion, 30º abduction, slight external rotation
capsular pattern: flex, ABD, int.R
T/F - bucket handle tear of medial meniscus is usually seen in older people, tear runs longitudinally through the meniscus
FALSE
= posterior aspect of medial meniscus, seen in younger people
older people: horizontal tear
the cruciate ligaments are most taut when the knee is in what position?
extension
the collateral ligaments are most taut when the knee is in what position?
extension
in flexion, anterior fibers taut
midrange, posterior fibers taut
potential causes of IT band contracture
-activities that place knee & hip in flexion: ITB & TFL shorten
-anterior pelvic tilt, hyperlordosis
-prolonged wheelchair use or bedrest
potential causes of ITB friction syndrome
-repetitive activities where knee & hip are flexed (running, cycling)
-poor TFL stretching
-anterior pelvic tilt
what observation may be seen in a person with osteoarthritis of the hip?
may have dif ficulty removing shoes, socks or slacks
-difficulty rising from sit to stand
-ABD/ antalgic gait, trendelenburg
-lurching of trunk toward affected side
an exaggerated physiological response to injury
Re flex Sympathetic Dystrophy
may occur at knee following trauma/ surgery
function of the mensici
act as shock absorbers
-lubrication & nutrition, reduce friction
-make joint surfaces more congruent
-prevent hyperextension
what is a contributing factor for patellofemoral syndrome?
a less prominent lateral femoral condyle
-increase Q-angle
-small, high riding patella
