Spondyloarthritis Flashcards
Psoriatic arthritis general description
Patients have general psoriasis symptoms and arthritis. Tends to be an asymmetrical oligoarthritis in the lower extremities.
Spondyloarthritis is associated with this subset of cytokines
Th17-type
Although not necessarily Th17 cells themselves
enthesitis
inflammation at the bony insertions of tendons and ligaments
dacylitis
inflammation of whole digits manifesting as ‘sausage toe” or “sausage finger”
Spondyloarthritis general description
Group of diseases wherein there is inflammation of spinal joints, sacroiliac joint, and peripheral joints. Often associated with:
Enthesitis
Dactylitis
Psoriasis
IBD
Uveitis (inflammation of uvea of eye)
Spondyloarthritis Venn Diagram
Prototypic ankylosing spondylitis
Inflammation in the spine and back joints manifests as back pain and morning stiffness. Chronic inflammation leads to fusion of bony segments of spine to one another.
Characteristics of reactive arthritis
- Part of spondyloarthritis family
- Occurs within 4 weeks of Chlamdyia UTI
- However, joints are culture negative, this is an aseptic arthritis
- 50/50 remission and chronic disease
Psoriatic arthritis occurs in __% of patients with psoriasis.
Psoriatic arthritis occurs in 30% of patients with psoriasis.
HLA gene associated with all forms of spondyloarthritis
HLA-B27
__% of patients with spondyloarthritis are positive for HLA-B27
85% of patients with spondyloarthritis are positive for HLA-B27
HLA-B27 is normally present within __% of the US population.
HLA-B27 is normally present within 6.1% of the US population.
Clinical manifestations of enthesitis
Heel pain when the Achilles tendon enthesis is involved, foot pain at the plantar fascia insertion, or swelling of entire digits (dactylitis or sausage digit) due to inflammation of the flexor and extensor tendons and their attachments at the bones of the fingers or toes.
Spondyloarthritis histopathology
Histologically, the inflammation in spondyloarthritis is characterized by chronic inflammatory infiltrates that are nonspecific and largely indistinguishable from rheumatoid arthritis.
While rheumatoid arthritis is associated with pathological bone ___, spondyloarthritis is associated with pathological bone ___.
While rheumatoid arthritis is associated with pathological bone erosion, spondyloarthritis is associated with pathological bone production.
The usual presenting symptom of axial spondyloarthritis is. . .
. . . back pain!
Particularly inflammatory back pain which starts low in the back or in the deep gluteal region.
A classic presentation of axial spondyloarthritis
- Began very slowly, over years
- Started in deep gluteal region and began creeping up the spine
- Worsened by rest and improved by exercise (characteristic of all forms of inflammatory arthritis)
- Difficulty sleeping or sitting in one position for long periods of time due to discomfort
- Age of onset <40 years
A patient beginning to present with clinical symptoms of axial spondylarthropathy will have lost ___.
A patient beginning to present with clinical symptoms of axial spondylarthropathy will have lost lumbar lordosis.