ankylosing spondylitis

Spondyloarthropathy

Diseases

 

1.  Reiter's Disease

2.  Ankylosing Spondylitis

3.  Psoriatic Arthritis

4.  Enteropathic Arthritis

 

Clinical overlap between them

- typically young men with asymmetric lower limb oligoarthritis

- associated with HLA B27

 

Reiter's Disease

 

Definition

 

Reactive arthritis after veneral infection or dysentery

 

Ankylosing Spondylitis

Definition

 

A HLA B27 positive, seronegative spondyloarthropathy with sacroiliac joint & spine involvement

Mainly affects the cartilaginous joints of the axial skeleton

 

Diagostic Criteria (1966 New York)

 

1. Positive X-ray Sacroiliitis

 

Sacroilitis Ankylosing Spondylitis