Uncemented | Cemented | |||||||
---|---|---|---|---|---|---|---|---|
Mean (SD) | 97.5% CI | Number | Mean (SD) | 97.5% CI | Number | P | ||
Timed up and go | 6 weeks | 18.7 (13.8) | 13.9–23.5 | 45 | 18.7 (12.9) | 14.6–22.9 | 51 | 0.99 |
12 weeks | 16.2 (12.4) | 11.5–20.9 | 38 | 15.5 (8.5) | 12.7–18.2 | 50 | 0.74 | |
1 year | 12.8 (9.4) | 8.9–16.7 | 33 | 13.9 (9.0) | 10.1–16.7 | 41 | 0.79 | |
GARS* (iADL) | 6 weeks | 53.1 (14.9) | 48.5–57.8 | 54 | 50.0 (15.3) | 45.7–54.4 | 65 | 0.27 |
12 weeks | 45.7 (17.0) | 40.3–51.2 | 52 | 45.3 (16.6) | 40.4–50.1 | 62 | 0.88 | |
1 year | 43.2 (19.7) | 36.2–50.2 | 43 | 39.2 (16.5) | 34.0–44.4 | 53 | 0.28 | |
NMS | 6 weeks | 3.7 (2.5) | 2.9–4.4 | 53 | 3.5 (2.4) | 2.8–4.1 | 64 | 0.65 |
12 weeks | 4.5 (2.8) | 3.6–5.4 | 51 | 4.8 (3.1) | 3.8–5.7 | 59 | 0.68 | |
1 year | 4.7 (3.2) | 3.6–5.8 | 44 | 5.7 (2.9) | 4.8–6.7 | 50 | 0.12 | |
SF-12 Physical component | 6 weeks | 30.3 (6.9)* | 27.9–32.6* | 47 | 35.3 (9.3)* | 32.4–38.2* | 54 | 0.003 |
12 weeks | 33.8 (9.8)* | 30.6–37.1* | 48 | 38.5 (9.9)* | 35.4–41.6* | 54 | 0.018 | |
1 year | 36.8 (10.7) | 32.9–40.8 | 40 | 37.5 (9.4) | 34.3–40.7 | 50 | 0.76 | |
SF-12 Mental component | 6 weeks | 45.0 (13.0) | 40.7–49.5 | 47 | 47.4 (11.0) | 44.0–50.8 | 54 | 0.33 |
12 weeks | 47.7 (11.2) | 43.9–51.4 | 48 | 49.5 (11.0) | 46.0–52.9 | 54 | 0.41 | |
1 year | 49.3 (11.2) | 45.2–53.4 | 40 | 51.4 (10.1) | 47.9–54.9 | 50 | 0.36 | |
Number (%) | Number (%) | |||||||
Mid-thigh pain | 6 weeks | 23 out of 55 (42%) | 20 out of 63 (32%) | 0.26 | ||||
12 weeks | 19 out of 55 (35%) | 17 out of 61 (27%) | 0.83 | |||||
1 year | 8 out of 43 (19%) | 11 out of 51 (22%) | 0.72 | |||||
Varus or valgus deviation | Post operative | 8 out of 89 (9%) | 7 out of 107 (7%) | 0.76 |