Table 4.
Additional PROMs. Values are mean (CI)
| Variable | Instrumentation | Difference | |
|---|---|---|---|
| Conventional n = 40 | PSPG n = 37 | ||
| EQ-5D-VAS | |||
| Preoperative | 59 (52–65) | 64 (57–71) | –5 (–15 to 4) |
| 3 months | 70 (64–77) | 75 (70–81) | –5 (–14 to 4) |
| 1 year | 73 (67–79) | 73 (67–80) | 0 (–9 to 9) |
| 2 years | 73 (68–78) | 77 (72–83) | –4 (–12 to 3) |
| 5 years | 72 (66–79) | 74 (68–81) | –2 (–11 to 7) |
| Pain NRS-11 | |||
| Preoperative | 5.8 (5.1–6.5) | 5.7 (4.8–6.6) | 0 (–1 to 1) |
| 3 months | 2.9 (2.2–3.7) | 2.0 (1.5–2.6) | 1 (0 to 2) |
| 1 year | 2.1 (1.3–2.8) | 1.2 (0.69–1.7) | 1 (0 to 2) |
| 2 years | 2.4 (1.6–3.1) | 1.1 (0.52–1.7) | 1 (0 to 2) |
| 5 years | 1.7 (1.0–2.4) | 1.1 (0.54–1.6) | 1 (0 to 2) |
| ROM a | |||
| Preoperative | 110 (104–116) | 108 (103–113) | 1 (–6 to 9) |
| 3 months | 103 (98–108) | 110 (107–114) | –7 (–14 to –1) |
| 1 year | 113 (109–117) | 114 (109–119) | –1 (–7 to 6) |
| 2 years | 115 (111–118) | 118 (113–123) | –3 (–9 to 3) |
| 5 years | 114 (110–118) | 114 (110–119) | 1 (–6 to 5) |
a
Range of motion in degrees measured by goniometer.