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Hip and Knee Disorders
Clinical Medicine Module 4
101
Medical
Graduate
07/15/2009

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Cards

Term
What are the bones of the hip?
Definition
innominate (ischium, illium, pubis), sacrum, coccyx
Term
What are the joints of the hip?
Definition
acetabularfemoral (hip), sacroiliac, pubis symphysis
Term
When does acetabular fusion occur?
Definition
delayed until 16 yrs
Term
What are the flexors of teh hip?
Definition
iliopsoas, sartorius, rectus femoris
Term
What are the adductors (medial) of the hip?
Definition
gracilis, pectineus, adductor longus/brevis/magnus
Term
What abducts the hip?
Definition
gluteus medius
Term
What extends the leg (posterios)?
Definition
gluteus maximus, hamstrings
Term
What is examined on the hip when the pt is in supine position?
Definition
excessive le rotation, foreshortening
Term
When performing a pe of the hip, what abnormality can be observed in the pt's stance?
Definition
asis/dimples of venus level (also gluteus)
Term
What are 5 bony prominences that can be palpated in the hip?
Definition
iliac crest, asis, grtr troch, psis, ischial tuberosity
Term
What soft tissue can be palpated in the hip?
Definition
femoral a, troch bursa, inguinal ligament, lymph nodes, hernia, etc
Term
What is the rom for flexion of the hip?
Definition
120 degrees
Term
What is the rom for extension of the hip?
Definition
30degrees
Term
What is the rom for ABduction of the hip?
Definition
45-50degrees
Term
What is the rom for ADduction of the hip?
Definition
20-30degrees
Term
What is the rom for internal rotation of the hip?
Definition
35degrees
Term
What are abnormalities you look for w/ variances in leg length?
Definition
true v. apparent. tibial v. femoral (galeazzi sign)
Term
If you break one bone in a ringed structure, for what else should you look?
Definition
a second break
Term
What are 3 neurological tests involving the hip?
Definition
mm strength, sensation, dtr
Term
At what spinal level do the top of the iliac crests intersect?
Definition
l4/l5
Term
What are 2 major nn of the hip?
Definition
sciatic, obdturator n (pain in medial side of thigh toward knee, some pts w/hip pain can present w/no hip pain, just knee pain from obturator n)
Term
Pt presents w/pain on medial part of knee. What outside the knee should you check?
Definition
(pain in medial side of thigh toward knee, some pts w/hip pain can present w/no hip pain, just knee pain from obturator n)
Term
What are the 3 major bursae in the hip?
Definition
ischial, iliopsoas, greater trochanter
Term
What is an antalgic gait?
Definition
pt won't put weight on one leg b/c of pain- causes limp
Term
What is the trendelenberg sign?
Definition
stand on one leg, (testing gluteus medius on side you're standing on), hip falls on opposite side of weakness
Term
Which level of the spine intersects the psis, midpoint of the si jt?
Definition
midpoint of si jt, s2
Term
Where are the sciatic n/piriformis located?
Definition
half-way b/t ischial tub adn grtr troch
Term
Most cases of ankylosing spondylitis involve which jt?
Definition
si jt
Term
Does ankylosing spondylitis occur more in males or females? What gene is involved?
Definition
m>f; hla-b27 (caucasians)
Term
What hip problem can occur w/pain in multiparous women?
Definition
ostelitis condensans Ilii
Term
To where can lumbar spine pathology radiate?
Definition
to SI jt
Term
When is a hip problem not diagnosed via exclusion?
Definition
inflammatory diseases
Term
What are 3 goals of conservative tx of hip problems?
Definition
relieve pain, maintain function, prevent deformity
Term
How do you ms true deviations from nml leg length?
Definition
ms from marks on bo sides (ie, asis and medial malleolus in bo legs).
Term
Are hip injections easy/difficult?
Definition
difficult
Term
What is the galeazzi sign?
Definition
ms femur differences versus tibial differences by having them sit w/legs bent at 90degrees to see if knee is higher or leg more protruded
Term
What is the faber/patrick's test?
Definition
Term
What is saddle anesthesia?
Definition
any type of anesthesia in places where you'd be sitting on a saddle
Term
What is loss of articular cartilage leading to pain and loss of motion?
Definition
coxarthrosis
Term
Inflammation such as ra, sle, or psoriatic arthritis, can lead to what hip abnormality?
Definition
coxarthrosis
Term
The following secondary problems can lead to what problem with the hip?
Definition
post-traumatic, avn, crystaline disease, infectious
Term
How frequently do the sacrum and ilium move? Why is this?
Definition
very rarely moves. large, practically immobile jt. irregular bone surfaces, ligamentous support
Term
What reiter's syndrome?
Definition
sacroilitis and destruction on x-ray
Term
Pt has anterior groin pain w/activity, radiating up to knee w/progressive limp, stiffness w/inactivity, and progressive loss of adls (shoe-tying, sitting, getting in and out of car)
Definition
sns/sxs, coxarthrosis
Term
bamboo spine
Definition
bamboo spine- ankylosing spondylitis
Term
Pseudomonas from IVDA can cause what?
Definition
si jt problems
Term
On PE you find loss of rot and abdx of hip, difficulty w/slr, and flexion contracture
Definition
coxarthrosis
Term
How might you tx si jt problems?
Definition
conservative tx prevails: nsaids, heat, rest, massage (injections difficult)
Term
You see the following on xray: jt space narrowing (superolateral initially), osteophyte formation, sclerosis, and subchondral cysts.
Definition
djd
Term
What directs tx for djd?
Definition
pt directs
Term
What is one of teh few common medical emergencies w/hip problems?
Definition
infections- can degenerate cartilage w/in 48 hrs
Term
Where is pain w/hip jt?
Definition
deep in groin. if pt points to lateral part of hip, they're lying to you.
Term
what are conservative tx options for djd of hip?
Definition
T/NSAIDS. modified activity, weight loss, glucosamine, viscosupplementation, cane, pt (NWB)
Term
What are sx tx options of djd of hip?
Definition
osteotomy, arthrodesis, tha
Term
what is pt's 2nd most satisfying surgery?
Definition
total hip replacement. #1 cateract surgery
Term
What are the 4 things you see typically w/ x-rays of djd of hip?
Definition
jt space narrowing, osteophyte formation, sclerosis, subchondral cysts
Term
Where does initial jt space narrowing of hip occur?
Definition
superolaterally
Term
What protective purpose does the pelvis serve?
Definition
protective ring for bladder, urethra, rectum, and female reproductive organs
Term
Every time you take a step, how much weight goes through each jt of your leg? what about running?
Definition
3x. 7x
Term
What type of impact are necessary to cause fx?
Definition
high energy impacts
Term
How effective is glucosamine in mild/moderate vs. severe hip arthritis?
Definition
not any better for mild/moderate arthritis vs. placebo?. helpful statistically for severe.
Term
hyaluronic acid
Definition
viscosupplementation from chicken/rooster comb, injected into jt space. not great clinically- used for grade 1/2 arthritis. not as helpful for extreme cases. you can have an immune rxn to it (10% have rxn after 2nd injection)
Term
What is it called when you cut out a wedge of bone from the femur so that you have good cartilage left?
Definition
osteotomy
Term
What is it called when you fuse the hip jt w/screws?
Definition
arthrodesis
Term
When could non-high energy impacts cause hip fx?
Definition
osteoporotic/met bone.
Term
What is often caused by hip fx?
Definition
injury to other structures (ie bone/viscera)
Term
What are 2 classifications of hip fx?
Definition
stable (intact ring and not wb surface) or unstable (broken in 2 places)
Term
What should you always suspect w/high velocity trauma such as mva, falls?
Definition
pelvis fx
Term
What could occur w/access to retroperitoneal space w/pelvis fx?
Definition
shock
Term
What should you consider prior to tx person w/injury to urethra/bladder?
Definition
consider urethrogram or cystogram prior to foley
Term
What is death of segment of bone d/t insufficient blood supply?
Definition
avascular necrosis
Term
What are 4 other names for avascular necrosis?
Definition
osteonecrosis, aseptic necrosis, ischemic necrosis, legg-calve-perthes (kids)
Term
How common is avascular necrosis?
Definition
common (up to 10% jt replacements)
Term
What are 5 causes of avascular necrosis?
Definition
trauma (fx, dislocation), chronic etoh or steroids, embolism, atmospheric pressure, idiopathic [Bone TIME- the Bends, Trauma, Idiopathic, Meds, Embolism]
Term
What will osteoarthritis of hand predict? or bmi>32?
Definition
osteoarthritis of hip
Term
What is graham's definition of a fx?
Definition
soft tissue injury in which bone is broken
Term
Regarding avascular necrosis, what leads to osteopenia?
Definition
reactive hyperemia
Term
Regarding avascular necrosis, what causes fragmentation?
Definition
angiogenesis
Term
How can fat or sickle cell cause avascular necrosis?
Definition
embolism
Term
If you can't find cause of avascular necrosis, what is the risk?
Definition
50% chance of developing it on contralateral side
Term
What are the properties of bone that is progressively substituted bone in avascular necrosis?
Definition
highly plastic
Term
What does death of all cellular elements in hip cause? what is retained?
Definition
avascular necrosis. retained architecture
Term
What age group tends to have avn?
Definition
younger population (20-40yo)
Term
What imaging method for avn can produce an eariler dx?
Definition
mri
Term
What is the next step if x-ray is negative for avn?
Definition
mri
Term
what has a better negative predictive value for avn? how specific is this?
Definition
bone scan. very nonspecific
Term
What are 2 things pts ingest that could cuase avn?
Definition
steroid use (thereapeutic or recreastional) or true etoh- use
Term
Are fx or falls commonly seen w/avn?
Definition
39-47? have hx of fx or fall
Term
What is the best vie for x-ray for avn? What should you look for on x-ray? how is it used timewise for avn?
Definition
often nml early on. lateral best view. look for loss of contour. can track progression
Term
What is teh goal of avn management?
Definition
prevent collapse!
Term
What are s/e of corticosteroid hip injections?
Definition
lose fat in area, lose skin color in that area?
Term
How must pts change activities w/avn?
Definition
stop offending activities, nwb until resolved, fosamax.
Term
What imaging modality should be used to evaluate response of therapy w/avn?
Definition
mri
Term
What are 4 options for surgical intervention of avn?
Definition
core decompression (reduce pressure), free fibular graft, osteotomy, arthroplasty
Term
What are types of arthroplasty w/avn? How effective is this?
Definition
hemi vs. total. high failure rate
Term
What are tx options for bursitis?
Definition
rice and nsaids. pt for u/s, stretching. injection if accessible)
Term
What imaging modalities are used for bursitis?
Definition
x-ray to r/o other pathology. mri rarely
Term
Is hip bursitis usally widespread or localized?
Definition
localized, occasional radiation. localized ttp
Term
What are common sources of bursitis?
Definition
irritation (esp w/altered gait eg injury, sx, etc) or hardware
Term
Where does weaver's bottom occur?
Definition
ischial bursitis
Term
What are 3 common friction reducers w/bursitis?
Definition
trochanteric, iliopsoas, ischial (weaver's bottom)
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