Table 1

Finger joint space width reduction estimated by computer-aided joint space analysis for metacarpal-phalangeal articulation

Z-Score


Average Sharp Score for joint space narrowing

MCP (thumb)

MCP (index finger)

MCP (middle finger)

MCP (ring finger)

MCP (little finger)

MCP (total)


0

0.27 ± 0.62

0.46 ± 0.62

0.32 ± 0.61

0.21 ± 0.55

0.15 ± 0.58

0.24 ± 0.33

1

-0.31 ± 0.70

-0.37 ± 0.83

-0.11 ± 0.58

-0.05 ± 0.66

-0.11 ± 0.60

-0.16 ± 0.29

2

-0.39 ± 0.82

-0.70 ± 0.96

-0.39 ± 0.91

-0.11 ± 0.82

-0.33 ± 0.78

-0.39 ± 0.44

3

-1.46 ± 1.54

-1.91 ± 1.57

-1.45 ± 1.69

-1.18 ± 1.30

-1.41 ± 1.59

-1.41 ± 1.01

Difference between score 0 and 3

1.74 ± 0.42

2.37 ± 0.43

1.77 ± 0.46

1.39 ± 0.36

1.56 ± 0.43

1.65 ± 0.30

Significance, P

<0.01

<0.01

<0.01

<0.01

<0.01

<0.01


Data presented as mean ± standard deviation. Reduction of finger joint space widths from score 0 to 3 using the average Sharp-van der Heijde score as estimated by computer-aided joint space analysis for the metacarpal-phalangeal (MCP) articulation.

Pfeil et al. Arthritis Research & Therapy 2013 15:R27   doi:10.1186/ar4163

Open Data