Test 2 Part 2

Question 1

What condition is a variant of DJD, appears unusually inflammatory, gives a classic “gull wing” sign, and is easily confused with RA?

Answer 1

Erosive OA

Question 2

Who is more likely to get Erosive OA?

Answer 2

middle-aged females

Question 3

When looking at erosive OA on films, what are the 2 most acceptable differential diagnoses?

Answer 3

psoriatic arthritis and RA (central erosions proximally and peripheral distally)

Question 4

What is the most common joint for DJD in the feet?

Answer 4

1st MTP joint (known as hallux rigidus)

Question 5

commonly occurs with DJD of the 1st MTP

Answer 5

bunion

Question 6

T/F: heel spurs are enthesopathic changes.

Answer 6

True

Question 7

T/F: the Glenohumeral joint is commonly involved with degenerative changes with or without prior trauma.

Answer 7

False; this is true of the AC joint tho

Question 8

What condition should you suspect if a person has DJD of the Glenohumeral Joint, but has no prior trauma?

Answer 8

CPPD (pseudogout)

Question 9

What is a FOOSH injury?

Answer 9

Fall
On
Out-
Stretched
Hand

Question 10

aka frozen shoulder

Answer 10

adhesive capsulitis aka shoulder impingement syndrome

Question 11

What condition involves elevation of the humeral head, degenerative enthesopathic changes of the humeral head, spurring of the acromion process, and rotator cuff (supraspinatus) degeneration?

Answer 11

Shoulder Impingement Syndrome

Question 12

What condition involves deposition of calcium within the tendons and bursa, occurs in the 40-70 age range, and most commonly in the supraspinatus tendon?

Answer 12

Hydroxyapatite Deposition Disease (HADD)

Question 13

What condition is commonly seen about the shoulder, elbow, wrist, hip, knee, ankle, and/or spine, and is aka calcifying tendinitis/bursitis or aka peritendinitis calcarea?

Answer 13

HADD

Question 14

T/F: The lateral compartment is most commonly affected by DJD before the medial compartment.

Answer 14

False; vice-versa

Question 15

What are the terms for the 3 compartments of the knee (used when discussing DJD)?

Answer 15

medial tibiofemoral,
lateral tibiofemoral,
retropatellar

Question 16

A person with Genu Varus will commonly have DJD of which knee compartment?

Answer 16

medial tibiofemoral

Question 17

If a patient has DJD of the lateral knee compartment, would that produce genu valgus or genu valgum?

Answer 17

valgum

imagine a piece of gum holding the knees to each other

Question 18

Which side of the tibia is the popliteal fossa?

Answer 18

lateral

Question 19

What condition involves calcification of the medial tibial collateral ligament (HADD)?

Answer 19

Pelligrini - Steida Calcification

Question 20

What are joint mice?

Answer 20

Intraarticular fragments (fragments of cartilage, meniscus, or synovium within the joint which often calcify)

Question 21

What condition involves multiple intra-articular loose bodies, synovial tissue metaplasia that produces cartilaginous masses, is common in the knee, hip, ankle, shoulder, and wrist, may present with joint mice, and may ultimately ossify to become radiographically visible?

Answer 21

Synovial Osteochondrometaplasia (SOM)

Question 22

What is the term for a slow growing, benign, and locally invasive tumor of the synovium, which most often involves the knee (also in hip, knee, and elbow), affects young to mid aged adults, and may resemble RA?

Answer 22

Pigmented Villonodular Synovitis (PVNS)

Question 23

What condition involves intra-articular effusions, lobulated masses, bony erosions in “tight joints,” “apple core” deformity, and may appear “bubbly?”

Answer 23

Pigmented Villonodular Synovitis (PVNS)

Question 24

What are Eggar’s cysts?

Answer 24

subchondral cysts/geodes

Question 25

T/F: DJD of the hip often involves a loss of joints space, osteophyte formation, Eggar’s cysts, sclerosing, and buttressing?

Answer 25

True

Question 26

Where is 80% of the joint space loss typically with DJD of the hip?

Answer 26

toward the superior compartment (femoral head and acetabulum)

Question 27

What is the term for thickened cortex at the medial femoral neck as the result of biomechanical changes across the joint?

Answer 27

buttressing

Question 28

What is the term for large subchondral cysts which occur when synovium intrudes through cartilage fissures?

Answer 28

geodes

Question 29

What is the fastest/easiest way to discern between a tumor and bowel gas seen on xray?

Answer 29

retake film with tube tilt and compare

Question 30

T/F: small holes in the bone with no white margin (seen on film) is most likely representative of benign metaplasia.

Answer 30

False; AGGRESSIVE, probably lytic malignancy

the smaller the holes, the more aggressive the lesion

Question 31

T/F: Regarding metaplasia, white margins mean it’s more likely benign.

Answer 31

True

Question 32

What is Koehler’s Line used to evaluate?

Answer 32

Acetabular Protrusion

Question 33

What condition has the common Eponym Otto’s Pelvis?

Answer 33

Acetabular Protrusion aka protrusio acetabuli