FESSH – Diversity = One Federation

Federation of European Societies for Surgery of the Hand

–Total Surgeons
–Member Countries

1 · Federation Composition

Each dot represents ~14 surgeons. 400 dots = 5,444 members across 30 countries. Four color approaches compared.

A · Regional Grouping
Countries grouped by region share a color family (blues = Nordic, greens = DACH/Benelux, reds = Mediterranean, etc.)
B · Kelly's Maximum Contrast
Scientifically chosen colors for maximum perceptual distance between all pairs
C · Color + Pattern
10 base colors combined with patterns (solid, stripes, dots, ring) = 30 unique combinations
D · Hover Highlight
Original colors — hover over a dot to highlight all dots of that country (others dim)

2 · European Membership Bubble Map

Circle size proportional to number of members per country.

3 · Dot Density – Every Surgeon Counts

Each dot represents 10 surgeons. Colours grouped by country.

● = 10 surgeons

4 · Building the Federation

The top countries drive the numbers — but every society completes the whole.

5 · Hand Surgeons per Million Inhabitants

Normalized by population — a different perspective on hand surgery coverage.

6 · Color + Pattern — Dark

10 basiskleuren gecombineerd met patronen (solid, strepen, dots, ring) — zwarte achtergrond.

C · Color + Pattern
10 base colors combined with patterns (solid, stripes, dots, ring) = 30 unique combinations

7 · Color + Pattern — Light

10 basiskleuren gecombineerd met patronen (solid, strepen, dots, ring) — witte achtergrond.

C · Color + Pattern
10 base colors combined with patterns (solid, stripes, dots, ring) = 30 unique combinations