OA Flashcards
T/f OA is part of normal aging
false
what is affected during OA
whole joint
cartilage
synovial membrance
ligaments
bone
OA is ignited by ___
micro or macro injury
OA manifests as ___ and then__
molecular derangement
anatomic derangement
osteophytites in OA or RA
OA
risk factors for OA
age, sex, genetic
obesity, inactive
injury
occupation
is age a risk factor
yes - because the way we use the joint at a higher age is a risk
is OA a wear and tear arthritis
false
medial compartment in men, more in white or asian
medial is white
lateral compartment in men, more in white or asian
lateral is asian
OA higher in men or women
women
MSK changes OA vs normal aging
normal aging you get:
lower bone metabolism
(dec bone turnover)
lower water content
no inflammation
does OA or normal aging have decrease in lean mm mass
both
but OA Type 1 decreases
Normal Type 2 decreases
Bouchards effects ___
Heberdens effects ____
PIP
DIP
how is OA identified
radiographic
symptomatic
MRI
main features of radiographic features
L - loss of joint space
O - osteophytes
S - subchondrol sclerosis
S0 subchondrol cyst formaition
T/f radiographic OA difficult to diagnose in early stage
true
kellgren Lawrence grading system diagnoses what
OA
kellgren grading system
grade 0- no features 1 - doubt (minute osteophytes) 2- minimal (definate osteophytes, space is fine) 3- moderate (some decrease in space) 4 - severe (joint space impaired)
clinical features of OA
pain after using joint
morning stiffness/ after inactivity
releived by rest
__ % of patients w joint damage experience pain
40%
4 questions for sympomatic OA
constant or intermittent pain ..
any time most days of the month
in the past year
worse w activity
received w rest
do you need to answer yes to all 4 questions
yes
3 signs for symptomatic OA
effusion. flexion contracture. gait abnormality
do you need all 3 signs for symptomatic OA
1
T/f climate effects arthritis
it doesn’t cause it but warmth helps and changes in barometric pressure / temperate may effect pain
is quadriceps weakness may be a modifiable risk factors for OA
yes - more quad strength lower risk
how to calculate BMI
weight over height 2
what BMI is high
25
one pound loss of weight reduced four pounds of knee load
t
does glucosamine sulphate help knee pain
it has a small effect