Table 2. Improvement in Health-Related Quality of Life and Satisfaction after Hip Replacement: A Comparison Between Patients with Mild to Moderate and Severe Radiographical Pre-Operative Osteoarthritis.
| SF36 Sub-Scale | Kellgren Grade 0–2:Mean Improvement (95%CI) | Kellgren Grade 3+4:Mean Improvement (95%CI) | Kellgren Grade 0–2 VS Kellgren Grade 3+4:Mean Adjusted Difference (95%CI) | P-value |
| Physical Functioning | 19.2 (14.2–24.1) | 26.2 (22.4–30.0) | 8.93 (2.14–15.7) | 0.01 |
| Role-Physical | 36.3 (26.7–45.9) | 42.2 (35.4–48.9) | 6.39 (−5.89–18.7) | 0.31 |
| Bodily Pain | 35.9 (30.4–41.3) | 36.5 (32.8–40.2) | 0.88 (−6.08–7.84) | 0.80 |
| General Health | 0.60 (−3.50–4.60) | −1.50 (−4.50–1.50) | −0.66 (−5.66–4.34) | 0.79 |
| Vitality | 9.30 (5.00–13.5) | 3.70 (0.80–6.70) | −3.53 (−9.03–1.97) | 0.21 |
| Social Functioning | 19.4 (13.6–25.2) | 14.6 (10.7–18.4) | −4.11 (−11.2–2.97) | 0.25 |
| Role Emotional | 6.90 (−1.10–14.9) | 11.3 (4.70–17.8) | 3.11 (−8.22–14.4) | 0.59 |
| Mental Health | 7.20 (4.00–10.5) | 4.60 (2.10–7.10) | −1.80 (−6.13–2.50) | 0.41 |
| PCS | 10.7 (8.70–12.6) | 11.2 (9.90–12.6) | 1.94 (−0.57–4.44) | 0.13 |
| MCS | 1.50 (−0.40–3.40) | −0.50 (−1.80–0.90) | −2.03 (−4.46–0.39) | 0.10 |
| NRS Satisfaction | 8.5 (8.0–8.9) | 8.9 (8.6–9.2) | 0.3 (−0.2–0.9) | 0.19 |
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.