Evaluation was performed with gray-scale ultrasound (GSUS).
Sites selected: clinically dominant hand and corresponding foot
An erosion was defined as an interruption in the bone surface seen in 2 perpendicular planes.
Joint locations assessed for erosions: 14 sites at 6 joints
Fingers:
(1) metacarpophalangeal (MCP) II, dorsal aspect
(2) metacarpophalangeal (MCP) II, palmar aspect
(3) metacarpophalangeal (MCP) II, radial aspect
(4) metacarpophalangeal (MCP) III, dorsal aspect
(5) metacarpophalangeal (MCP), palmar aspect
(6) proximal interphalangeal (PIP) II, dorsal aspect
(7) proximal interphalangeal (PIP) II, palmar aspect
(8) proximal interphalangeal (PIP) III, dorsal aspect
(9) proximal interphalangeal (PIP) III, palmar aspect
Toes:
(10) metatarsophalangeal (MTP) II, dorsal aspect
(11) metatarsophalangeal (MTP) II, plantar aspect
(12) metatarsophalangeal (MTP) V, dorsal aspect
(13) metatarsophalangeal (MTP) V, plantar aspect
(14) metatarsophalangeal (MTP) V, lateral aspect
|
Erosions
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Points
|
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absent
|
0
|
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present
|
1
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total score for erosions on one side =
= SUM(points for all 14 sites)
Interpretation:
• minimum score for erosions: 0
• maximum score for erosions: 14
