Test 2 Part 2 Flashcards
What condition is a variant of DJD, appears unusually inflammatory, gives a classic “gull wing” sign, and is easily confused with RA?
Erosive OA
Who is more likely to get Erosive OA?
middle-aged females
When looking at erosive OA on films, what are the 2 most acceptable differential diagnoses?
psoriatic arthritis and RA (central erosions proximally and peripheral distally)
What is the most common joint for DJD in the feet?
1st MTP joint (known as hallux rigidus)
commonly occurs with DJD of the 1st MTP
bunion
T/F: heel spurs are enthesopathic changes.
True
T/F: the Glenohumeral joint is commonly involved with degenerative changes with or without prior trauma.
False; this is true of the AC joint tho
What condition should you suspect if a person has DJD of the Glenohumeral Joint, but has no prior trauma?
CPPD (pseudogout)
What is a FOOSH injury?
Fall On Out- Stretched Hand
aka frozen shoulder
adhesive capsulitis aka shoulder impingement syndrome
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?
Shoulder Impingement Syndrome
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?
Hydroxyapatite Deposition Disease (HADD)
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?
HADD
T/F: The lateral compartment is most commonly affected by DJD before the medial compartment.
False; vice-versa
What are the terms for the 3 compartments of the knee (used when discussing DJD)?
medial tibiofemoral,
lateral tibiofemoral,
retropatellar
A person with Genu Varus will commonly have DJD of which knee compartment?
medial tibiofemoral
If a patient has DJD of the lateral knee compartment, would that produce genu valgus or genu valgum?
valgum
imagine a piece of gum holding the knees to each other
Which side of the tibia is the popliteal fossa?
lateral
What condition involves calcification of the medial tibial collateral ligament (HADD)?
Pelligrini - Steida Calcification
What are joint mice?
Intraarticular fragments (fragments of cartilage, meniscus, or synovium within the joint which often calcify)
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?
Synovial Osteochondrometaplasia (SOM)
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?
Pigmented Villonodular Synovitis (PVNS)
What condition involves intra-articular effusions, lobulated masses, bony erosions in “tight joints,” “apple core” deformity, and may appear “bubbly?”
Pigmented Villonodular Synovitis (PVNS)
What are Eggar’s cysts?
subchondral cysts/geodes
T/F: DJD of the hip often involves a loss of joints space, osteophyte formation, Eggar’s cysts, sclerosing, and buttressing?
True
Where is 80% of the joint space loss typically with DJD of the hip?
toward the superior compartment (femoral head and acetabulum)
What is the term for thickened cortex at the medial femoral neck as the result of biomechanical changes across the joint?
buttressing
What is the term for large subchondral cysts which occur when synovium intrudes through cartilage fissures?
geodes
What is the fastest/easiest way to discern between a tumor and bowel gas seen on xray?
retake film with tube tilt and compare
T/F: small holes in the bone with no white margin (seen on film) is most likely representative of benign metaplasia.
False; AGGRESSIVE, probably lytic malignancy
the smaller the holes, the more aggressive the lesion
T/F: Regarding metaplasia, white margins mean it’s more likely benign.
True
What is Koehler’s Line used to evaluate?
Acetabular Protrusion
What condition has the common Eponym Otto’s Pelvis?
Acetabular Protrusion aka protrusio acetabuli
