From: Mild knee osteoarthritis predicts dissatisfaction after total knee arthroplasty: a prospective study of 186 patients aged 65 years or less with 2-year follow-up
median/n
range/%
Age (years)
60
28–65
BMI
31
20–54
Females
117
63
Kellgren-Lawrence
 KL 2
36
19
 KL 3
87
47
 KL 4
34
Preoperative varus alignment
127
68
At work preoperatively
92
50
Comorbidities limiting physical activity
28
15