Table 1.

Characteristics of Swedish knee surgeons (N = 219)

Variable	Orthopaedic knee surgeon (N = 219)
Experience, n (%)
< 5 years	32 (15)
5–15 years	95 (43)
15–30 years	80 (37)
> 30 years	11 (5)
Missing	1 (0.5)
aKnee specialist, n (%)
100% Knee specialist	18 (8)
50% knee specialist	81 (37)
25% Knee specialist	120 (55)
Primary TKA/year, n (%)
< 22	33 (15)
22–50	103 (47)
50–100	54 (25)
> 100	24 (11)
Missing	5 (2)
Revision TKA/year, n (%)
No revision	98 (45)
< 5 revisions	54 (25)
> 5 revisions	65 (29)
Missing	2 (1)

The table shows the classification of knee surgeons according to the years of experience, the percentages of daily clinical work with knee joint, the volume of primary TKA performed by every surgeon per year and the volume of revision knee replacement surgery performed by every surgeon per year

^aPercentage of daily clinical work with knee joint