Meeting 1 Learning objectives Flashcards
What is the normal ammount of cells found in synovial fluid analysis?
What count would denote a septic joint?
<200 cells/uL
Over 20,000 suggests sepsis.
Where does a bakers cyst occur?
Between semimembranosus and medial head of gastroc just posterior to the femoral condyle.
What are the four monoarticular joint diseases?
Hint “POGS”
Pseudogout
Osteoarthritis
Gout
Septic arthritis
What are the four polyarticular joint diseases?
"LARP" Lupus Amyloidosis Rheumatoid Arthritis Psoriatic Arthritis
What mineral is accumulated in the joints in pseudogout?
Calcium pyrophosphate
What is degenerative joint disease?
Breakdown of joint cartilage and underlying bone.
Typically made worse after periods of inactivity.
What are the types of hypertrophic joint diseases?
Scleroderma, osteoarthritis, charcot, gout.
Which three joint diseases do not have osseus erosions?
Osteoarthritis
Charcot
Septic joints
Which disease states will you see arthritis mutilans in?
Psoriatic Arthritis
Rheumatoid arthritis
Charcot
With RA what side of the MPJ is struck first?
Rheumatoid arthritis will always strike the medial side every time except where it will hit the lateral side of the fifth.
What is eburnation?
Periarticular increased bone density adjacent to the site of joint space narrowing.
Seen most commonly with osteoarthritis!!
Which side of a ball and socket joint will eburnation typically occur?
Typically occurs on the concave side of the joint
What is whiskering?
A variation of periostitis radiating away from bone margin.
common with psoriatic arthritis.
What is ivory phalanx?
Increased density of distal phalanx.
seen in psoriatic arthritis
What is Martels sign?
overhanging margin of new bone at margin of erosion. Most commonly on the first MPJ and adjacent margin on the joint.
crystals in Gout?
Monosodium Urate crystals
Which of the joint disorders is characterized by normal joint spacing?
Gout
What is a detritus?
A loose body within the joint also known as a Joint mouse.
What is a geode?
A subchondral bone cyst seen in DJD,RA,OA,gout, osteonecrosis and pseudoout (degenerative disorders)
A geode will appear lytic upon X-ray evaluation sometimes surrounded by a thin sclerotic margin.
What is highwaters erosion?
Notoriously hits the posterior superior area of the calcaneus/ extra articular erosions seen in RA.
What is enthesopathy?
Area that involves the attachment of a tendon or ligament into the bone. Occurring most commonly with inflammatory arthritis. Ex: Plantar fasciitis.
what are the key characteristic of osteoarthritis?
Osteophytes and ebernation on the concave side of the joint.
Characteristic joint squaring with joint mice and hallux abductovarus.
What are the key characteristics of rheumatoid arthritis?
Pannus formation on the side of the joints first.
Targets all MPJ’s with UNIFORM narrowing.
Leads to lateral deviations of the toes.
Notoriously causes osteopenia on the adjacent sides of the bone because its an inflammatory pocess that washes out the bone.
what are the key characteristics of psoriatic arthritis?
Osteolysis of the distal phalanx targeting the lesser joints hallux ipj and dipj.
Will cause whiskering, ivory phalanx, pencil cupping and sausage digiting.
How will septic arthritis present
Subchondral resorption without erosions.
How will pseudogout present
Chondrocalcinosis in which the cartilage becomes calcified.
Name the Single Joint arthritis
Sepsis Internal derangement Neoplasm Gout Lymes disease Extra articular cause/ ligamen Juvenile rheumatoid arthritis Osteoarthritis I Neuropathic disease Trauma
What are the single joint Fresh Eggs mnemonic?
o Fibromyalgia o Rheumatoid Arthritis o Enthesopathy (Tendons involved Inflammation of tendons at bony attachment) o Spinal problems/Skin problems (Psoriasis/Mouth Sores) o Headaches o Eye problems o GI problems o GU problems o Sleep Problems
