Improvement in Health-Related Quality of Life and Satisfaction after Knee Replacement: A Comparison Between Patients with Mild to Moderate and Severe Radiographical Pre-Operative Osteoarthritis.

Positive values indicate a higher mean improvement in HRQoL after THR in patients with Kellgren Grade 3+4, compared to Grade 0–2. The mean differences between radiographic severity are adjusted for age, sex, Charnley Comorbidity Classification and BMI and stratified for quartiles of follow-up.