Joints

Itis

Osis

Osteoarthr____ is inflammatory and Osteoarthr___ is degenerative?

Infection

Neoplasia

Chronic hemarthrosis

What are causes of erosive joint dz?

Lytic subcondral bone,

Soft tissue swelling

Larger gap between joints

What changes will we see in an erosive joint?

Osteoorthrosis - normal degeneration and trauma

What are causes of non-erosive joint changes?

Osteorthrosis

Traumatic infection

If you have a monoarthritis/osis the likely causes are?

Monoarthritis - due to sepsis - swelling soft tissue and bone lysis

Identify the joint changes?

Monoarthrosis - Osteoarthritis - smooth regular bone less swelling

Identify the joint changes?

Immune mediated changes

Endocarditis

(Something hematogenous)

What is suspected in polyarthritis/osis?

Articular capsule

Identify the light blue region of the joint?

Synovial membrane

Identify the orange/red region of the joint?

Synovial fluid

Identify the yellow region of the joint?

Articular cartilage

Identify the dark blue region of the joint?

Subcondral bone

Identify the pink portions of the joint?

Synovial fluid - must have compression to remove waste and absorb nutrients

Where does the articular cartilage get its nutrients?

Subchondral bone lysis

Osteoarthriosis

decreased joint space

Luxation

Fragmentation of adjacent bones

What are signs of erosive arthritis?

Increased synovial mass

Altered joint size when weight baring

Subchondral opacity

New bone formation

Calcified bodies

What are signs of non- erosive joint lesions?

Osteophyte

Identify the pathology?

Enthesiophyte

Identify the pathology?

Irreversible damage to the articular cartilage

What does presents of an osteophyte indicate?

Inside the joint - periarticular margin

Where would you find an osteophyte?

Damage to a ligament that has been calcified - can be resolved w/ rest

What would an enthesiophyte indicate?

Outside joint capsule

Where would you find an enthesiophyte?

OCD

Un-united anneal process

OA

fragmented medial coronoid process

Name a few articular calcified bodies?

Avulsion fracture

Sesamoid bones

Calcifying tendonopahty

Name a few periarticular calcified bodies?

Clavical

Tumoral calcinosis

Dystrophic mineralization

Name a few examples of juxta-articular calcified bodies?

Erosive

Erosive or non erosive?

Non-erosive

Erosive or non erosive?