Table 1

Description of the mSASSS and RASSS scoring systems.

mSASSS

RASSS


Spinal segments assessed

- Cervical spine

Lower border of C2 to upper border of T1

Lower border of C2 to upper border of T1

- Thoracic spine

Not included

Lower border of T10 to upper border of T12

- Lumbar spine

Lower border of T12 to upper border of S1

Lower border of T12 to upper border of S1

Range of scoring system

0-72

0-84

Scoring definitions

- 0

No change

No change

- 1

Erosion, squaring, sclerosis

Squaring only for the thoracic and lumbar segments; no erosions scored; sclerosis scores for all VCs

- 2

Syndesmophytes

Syndesmophytes

- 3

Bridging syndesmophytes/ankylosis

Bridging syndesmophytes/ankylosis


mSASSS, modified Stoke Ankylosing Spondylitis Spine Score; RASSS, radiographic Ankylosing Spondylitis Spinal Score; C, cervical; T, thoracic; S, sacral.

Ramiro et al. Arthritis Research & Therapy 2013 15:R14   doi:10.1186/ar4144

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