axSpA

Medical abbreviation · Musculoskeletal & Rheumatology

axSpA
Stands forAxial spondyloarthritis
CategoriesMedical

axSpA stands for Axial spondyloarthritis, a musculoskeletal & rheumatology abbreviation.

Umbrella term for inflammatory arthritis mainly affecting the spine and sacroiliac joints, covering both radiographic disease (ankylosing spondylitis) and non-radiographic disease, in which inflammation is visible on MRI but X-rays are normal. Both forms cause similar symptoms and respond to the same treatments.

Example: Inflammatory back pain, MRI with sacroiliac bone marrow edema, normal X-rays: nr-axSpA.

Usage notes

The lowercase "ax" stands for axial. The ASAS classification criteria, published in 2009, allowed earlier diagnosis by including MRI findings. Non-radiographic axSpA is more evenly distributed between men and women than classic AS. Typical delays to diagnosis have historically been seven years or more.

More musculoskeletal & rheumatology abbreviations

  • ACDF – Anterior cervical discectomy and fusion
  • ACLR – Anterior cruciate ligament reconstruction
  • APS – Antiphospholipid syndrome
  • AS – Ankylosing spondylitis
  • AVN – Avascular necrosis
  • BTB – Bone-patellar tendon-bone (graft)
  • CES – Cauda equina syndrome
  • CPPD – Calcium pyrophosphate deposition disease
  • CRPP – Closed reduction and percutaneous pinning
  • CRPS – Complex regional pain syndrome
  • CTS – Carpal tunnel syndrome
  • DAS28 – Disease Activity Score in 28 joints

See all 71 musculoskeletal & rheumatology abbreviations →

This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.