Week 8 Arthritic Disorders Flashcards
3 categories?
- inflammatory
- degenerative
- metabolic
Inflammatory has ______ loss of joint space
uniform
Degenerative has ________ loss of joint space
non- uniform
Inflammatory: radiographic findings
- soft tissue swelling
- Uniform loss of joint space
- Bone erosions *
- justa-articular osteoporosis
- monoarticular or polyarticular (symettrical) *
Are there bone erosions in DJD?
FASLSE
inflammatory diseases have erosions?
TRUE
Degenerative: radiographic findings
- non-uniform loss of joint space
- osteophytes
- subchondral sclerosis
- Asymmetric!!
Metabolic: radiographic findings
- preservation of joint space
2. well-marginated bone lesions
DJD aka?
osteoarthritis
DJD is the ____ common joint pathology
most
descrbe djd? (3)
progressive
non-inflammatory
small joints of hands
any joint really
Primary DJD is ________ and the 5th and 6th decade. Females to male ratio? _______ bearing joints.
idiopathic.
10:1
weight
_______ correlation between radiographic changes and symptoms
POOR
______ changes, may be slowed down
irreversible
abnormal or _______ forces = destruction of cartilage
repetitive
whats the minimun number xray do you have to see to determine DJD?
ONE
Asymmetrical distribution, eg?
hip
non-uniform loss of joint space…… ______ aspect of hip is decreased
superior
osteophytes
bony outgrowths
subchondral sclerosis (her definition in class)
where bones touch each other. they develop sclerosis
bones must ________ in order to have sclerosis
touch
Subchondral cysts: her deff
when synovial fluid seeps into the crack in the bone
Aka for subchondral cysts?
geodes
DJD - HIP aka?
coxarthorosis, malum coxae senilis
DJD - HIP has ______ loss of joint space …..migration
NON- uniform
Three types of migration for DJD - HIP
- Superior
- Medial
- Axial
Superior migration = _______ sign. On CT _______ margin
Waldenstom sign.
Anterior margin
Axial migration . ________ displacement. seen in ____ or ____.
Superomedial displacement.
RA or Infection
Medial migration- ______ _____ . on CT _______ migration
protrusio acetabuli.
Posterior migration
Thickening, medial side, stress related and altered joint mechanics are all signs for ______?
buttressing
Three compartments of the knee?
- medial MC*
- Lateral
- Patellofemoral
Knee. Sharpening of tibial _______.
Calcified loose bodies vs ___ _____
eminences.
os fabella
what is an os fabella?
sesamoid bone behind the knee
Patellar tooth sign =?
advanced patellofemoral degeneration
patellar tooth sign is seen on what view?
Sunrise
Cartilage softening
Pain and crepitus from patellofemoral joint desribe?
chondromalacia patellae
chondromalacia patella can be cause by what various mechanisms?
Trauma, patellar dislocation, malalignment syndrome, cartilage vulnerability and occupation
crepitus means?
clicking/crunching
With chondromalacia patellae, you often have pain where in the knee?
anteromedial
What sign is termed with chondromalcia patellae?
movie sign (from sitting for long periods of time) - such as watching a movie
Retropatella pain with direct _______
compression
Used to detect patellar malalignment?
Q angle
Normal Q angle?
15-20
DJD in the _____ and ____ joints are uncommon and usually from previous trauma?
Ankle and Tarsal joints
Calcaneal osteophytes are also seen in ____, ____ and _____.
- AS
- Psoriasis
- Reiters
What is the FIRST joint to show signs of DJD?
1st Metatarsophalangeal joint
Bony outgrowth on foot can lead to ?
bunion
Common location for osteophyte deformity on the foot?
dorsal and medial surface
foot osteophyte aka?
hallux valgus