AP KNee Flashcards
Weight bearing side
Medial side
Fibula is
Lateral side
Check to see if the tibial eminences are jammed into the fossa, if so
Decreased joint space
Check medial joint space and then
Lateral joint space
Decreased joint space
Intercondylar eminence on tibia will jame into intercondylar fossa of femur
Decreased medial joint space and lateral preserved
DJD
See a lateral knee film, probably
Osgood schlatters
Both medial and lateral joint spaces gone
DJD or RA (both knees
Decreased medial and lateral joint space with minimal sclerosis
RA
Loss of lateral joint space only, medial preserved
RA
16-25
Atlete
Knee locks out upon extension
Pain
OCD
OCD
Osteochondritis dessicans
AVN of the lateral aspect of the medial femoral condyle
OCD
Activity modification
Take it easier
OCD
Radiographic signs OCD
Half moon shape appearance and under it is called joint mouse, osteochondral body (fragment)
Best seen on which view OCD
Tunnel view
OCD
80% affect ____
20% affect ____
80% medial
20% lateral
To dx OCD must see
Black crescent line - osteochondral fx line
Bony fragment can dislodge and become free floating joint mouse
OCD
Tx OCD
Refer to orthopedist leave along (8 months-2 years duration) or surgery
Calcification of the medial collateral ligament aka tibial collateral ligament
Pelligrini steida
Medial collateral ligament aka
Tibial collateral ligament
Whisp of smoke appearance on medial aspect of knee
Pelligrini steida
M/c/c pelligrini steida
DJD or trauma
Fine linear calcification parallel to the articular cortex within the joint space
CPPD
CPPD
Pseudogout
Calcium pyrophosphate dihydrate crystal deposition disease
Chondrocalcinosis
CPPD is called chondrocalcinosis when
Affecting cartilage
Thin fine white lines in middle of joint
CPPD
M/c in knee in meniscus
CPPD
Neurogenic arthropathy aka
Charcot’s joint
Neurotrophic joint
Scondary to imparied sensory function in joints
Seen with diabetes mellitus, leprosy, neurosyphilis, corticosteroid usuage
Neurogenic arthropathy
6 D’s associated with neurogenic arthropathy
Distention Density of subchondral sclerosis Debris within joint Dislocation Disorganization Destruction of bone
Painless
Weight bearing
First hypermobile joint
neurogenic arthropathy
If unsure, does it look like bomb went off in joint
Yes = charcot’s joint
Post traumatic avulsion fx of tibial tuberosity
Osgood schlatter’s
Tibial tuberosity tender to touch
Tibial apophysitis
Osgood schlatter’s
10-16 Pinpoint pain and swelling Commonly involved in jumping sports usually athletes Attachment of quads LATERAL KNEE FILM
Osgood schlatter’s
Once heals = enlarged tibial tuberosity
Stretch after practice/game
Osgood schlatter’s
Case management osgood schlatter’s
Stop physical athletic activity and Cho-Pat brace
