Table IV.
Preoperative and postoperative patient-reported outcome measures, by Tönnis Grade intraarticular intervention performed
| Tönnis Grade 0 | Tönnis Grade 1 | |||||||
|---|---|---|---|---|---|---|---|---|
| Major (n = 25) | Minor (n = 25) | No intervention (n = 62) | Adjusted P-value * | Major (n = 24) | Minor (n = 9) | No intervention (n = 16) | Adjusted P-value * | |
| UCLA score | ||||||||
| Preoperative | 5.6 (2.2) | 5.9 (2.5) | 7.1 (2.6) | 0.014 | 6.8 (2.4) | 6.5 (2.6) | 7.2 (2.6) | 0.75 |
| Postoperative | 7.4 (2.2) | 7.6 (2.1) | 8.3 (1.6) | 0.072 | 6.5 (2.2) | 7.0 (2.5) | 7.9 (2.2) | 0.58 |
| Change (post–pre) | 1.9 (3.2) | 1.3 (2.2) | 1.1 (2.9) | 0.45 | 0.2 (2.5) | 1.4 (2.7) | 0.5 (2.1) | 0.69 |
| P-value | 0.017 | 0.010 | 0.025 | 0.75 | 0.31 | 0.45 | ||
| Harris Hip Score | ||||||||
| Preoperative | 64.3 (16.9) | 60.2 (14.0) | 62.9 (13.4) | 0.52 | 65.9 (10.1) | 56.2 (15.9) | 67.4 (20.6) | 0.21 |
| Postoperative | 90.6 (10.3) | 86.8 (14.4) | 89.7 (10.5) | 0.37 | 82.9 (17.9) | 77.8 (20.8) | 86.0 (15.6) | 0.67 |
| Change (post–pre) | 25.7 (17.7) | 26.4 (16.7) | 25.2 (15.3) | 0.96 | 20.6 (12.5) | 20.1 (16.3) | 15.4 (19.3) | 0.40 |
| P-value | <0.001 | <0.001 | <0.001 | <0.001 | 0.031 | 0.055 | ||
| HOOS Total Pain | ||||||||
| Preoperative | 57.1 (17.9) | 50.7 (18.3) | 57.6 (18.8) | 0.14 | 55.9 (15.9) | 42.9 (13.2) | 60.6 (20.8) | 0.10 |
| Postoperative | 89.2 (12.2) | 84.3 (17.1) | 88.4 (13.9) | 0.45 | 81.3 (22.3) | 79.4 (18.4) | 84.1 (16.8) | 0.82 |
| Change (post–pre) | 28.1 (19.3) | 33.3 (20.1) | 30.4 (21.5) | 0.33 | 27.5 (19.4) | 31.3 (14.3) | 22.1 (22.2) | 0.49 |
| P-value | <0.001 | <0.001 | <0.001 | <0.001 | 0.031 | 0.005 | ||
| c MCID (10.3) P-value | 0.001 | <0.001 | <0.001 | 0.002 | 0.016 | 0.093 | ||
| HOOS Total ADL | ||||||||
| Preoperative | 66.2 (19.8) | 64.4 (21.3) | 72.0 (20.3) | 0.11 | 75.9 (20.0) | 61.0 (16.9) | 80.4 (16.4) | 0.049 |
| Postoperative | 94.8 (6.0) | 88.7 (16.7) | 95.3 (5.8) | 0.21 | 85.3 (20.2) | 88.4 (14.4) | 89.4 (14.7) | 0.87 |
| Change (post–pre) | 24.3 (16.7) | 22.1 (19.7) | 20.7 (20.3) | 0.38 | 9.6 (23.9)a,b | 23.9 (14.3)b | 7.4 (12.4)a | 0.029 |
| P-value | <0.001 | <0.001 | <0.001 | 0.14 | 0.016 | 0.078 | ||
| c MCID (10.8) P-value | 0.002 | 0.031 | 0.003 | 0.85 | 0.052 | 0.36 | ||
| HOOS Total S&R | ||||||||
| Preoperative | 37.8 (23.5) | 36.1 (23.1) | 44.9 (21.5) | 0.054 | 42.9 (22.4) | 28.6 (20.7) | 53.4 (20.5) | 0.075 |
| Postoperative | 82.2 (18.9) | 75.7 (25.8) | 81.8 (17.0) | 0.43 | 74.0 (25.3) | 72.7 (19.5) | 79.7 (22.0) | 0.79 |
| Change (post–pre) | 44.1 (29.9) | 34.9 (28.8) | 34.8 (24.1) | 0.24 | 34.2 (31.2) | 40.6 (20.8) | 20.6 (27.2) | 0.15 |
| P-value | <0.001 | <0.001 | <0.001 | <0.001 | 0.031 | 0.063 | ||
| c MCID (12.6) P-value | <0.001 | 0.006 | <0.001 | 0.011 | 0.022 | 0.38 | ||
| HOOS Total QOL | ||||||||
| Preoperative | 27.8 (17.7) | 25.0 (19.2) | 34.2 (18.2) | 0.065 | 31.3 (17.3) | 29.7 (14.1) | 33.9 (13.4) | 0.49 |
| Postoperative | 73.7 (19.0) | 67.3 (19.7) | 75.3 (17.2) | 0.21 | 64.1 (27.6) | 67.0 (20.3) | 73.2 (22.4) | 0.92 |
| Change (post–pre) | 45.4 (25.9) | 43.8 (21.6) | 38.9 (24.4) | 0.38 | 32.8 (27.1) | 37.5 (21.7) | 35.1 (26.2) | 0.92 |
| P-value | <0.001 | <0.001 | <0.001 | <0.001 | 0.016 | <0.001 | ||
| c MCID (11.2) P-value | <0.001 | <0.001 | <0.001 | 0.006 | 0.018 | 0.006 | ||
| WOMAC Total Pain | ||||||||
| Preoperative | 62.2 (19.3) | 55.9 (19.6) | 62.3 (19.5) | 0.30 | 62.7 (16.5)a | 47.1 (12.5)b | 68.6 (18.1)a | 0.046 |
| Postoperative | 90.0 (12.1) | 86.9 (17.0) | 91.8 (12.3) | 0.52 | 83.9 (21.6) | 86.9 (12.5) | 88.9 (14.0) | 0.94 |
| Change (post–pre) | 24.2 (20.7) | 30.8 (18.9) | 28.0 (22.4) | 0.44 | 23.2 (21.6) | 37.5 (9.4) | 17.3 (18.1) | 0.064 |
| P-value | <0.001 | <0.001 | <0.001 | <0.001 | 0.031 | 0.004 | ||
| c MCID (10.8) P-value | 0.014 | <0.001 | <0.001 | 0.031 | 0.031 | 0.22 | ||
| WOMAC Total Stiffness | ||||||||
| Preoperative | 55.0 (20.4) | 48.4 (22.2) | 59.2 (25.4) | 0.067 | 62.5 (26.7) | 53.1 (20.9) | 62.5 (24.0) | 0.52 |
| Postoperative | 81.9 (19.8) | 76.3 (22.2) | 84.2 (19.7) | 0.44 | 71.3 (25.7) | 84.4 (21.9) | 81.3 (17.5) | 0.49 |
| Change (post–pre) | 23.6 (30.3) | 28.3 (21.6) | 21.6 (26.3) | 0.19 | 12.5 (33.2) | 28.6 (13.9) | 15.4 (26.6) | 0.26 |
| P-value | 0.007 | <0.001 | <0.001 | 0.15 | 0.016 | 0.082 | ||
| c MCID (12.9) P-value | 0.15 | 0.006 | 0.034 | 0.96 | 0.024 | 0.74 | ||
| WOMAC Total Physical | ||||||||
| Preoperative | 66.2 (19.8) | 64.4 (21.3) | 72.0 (20.3) | 0.11 | 75.9 (20.0)a | 61.0 (16.9)a | 80.4 (16.4)b | 0.049 |
| Postoperative | 94.9 (6.2) | 88.7 (16.7) | 95.4 (5.9) | 0.20 | 86.1 (20.0) | 89.5 (12.1) | 89.4 (14.7) | 0.82 |
| Change (post–pre) | 24.5 (17.1) | 22.1 (19.7) | 20.8 (20.2) | 0.39 | 9.6 (23.9)a | 25.2 (14.3)a | 7.4 (12.4)b | 0.026 |
| P-value | <0.001 | <0.001 | <0.001 | 0.14 | 0.016 | 0.078 | ||
| c MCID (10.8) P-value | 0.003 | 0.031 | 0.003 | 0.85 | 0.037 | 0.36 | ||
| WOMAC Total | ||||||||
| Preoperative | 64.5 (18.6) | 61.6 (20.2) | 68.7 (19.9) | 0.15 | 72.8 (18.5)a | 55.4 (14.6)b | 77.6 (15.8)a | 0.034 |
| Postoperative | 92.9 (7.7) | 86.8 (17.0) | 94.0 (7.0) | 0.18 | 84.4 (20.5) | 88.5 (12.2) | 88.6 (14.4) | 0.81 |
| Change (post–pre) | 24.4 (16.9) | 24.2 (18.7) | 23.2 (20.0) | 0.57 | 11.5 (22.7)a | 28.8 (13.2)b | 9.3 (12.7)a | 0.025 |
| P-value | <0.001 | <0.001 | <0.001 | 0.11 | 0.031 | 0.023 | ||
| c MCID (10.4) P-value | 0.002 | <0.001 | <0.001 | 0.86 | 0.031 | 0.77 | ||
| SF12 Physical | ||||||||
| Preoperative | 38.0 (9.5) | 37.9 (10.9) | 41.4 (9.6) | 0.11 | 40.5 (11.1) | 34.0 (11.3) | 39.5 (12.6) | 0.18 |
| Postoperative | 54.6 (6.9) | 48.2 (11.6) | 54.6 (6.1) | 0.14 | 48.3 (9.6) | 46.7 (12.6) | 49.5 (8.7) | 0.74 |
| Change (post–pre) | 15.9 (7.1) | 10.0 (11.4) | 12.5 (11.3) | 0.036 | 9.3 (13.5) | 13.8 (16.8) | 9.1 (9.3) | 0.77 |
| P-value | <0.001 | <0.001 | <0.001 | 0.008 | 0.078 | 0.002 | ||
| SF12 Mental | ||||||||
| Preoperative | 51.8 (9.2) | 53.2 (9.9) | 52.4 (11.5) | 0.86 | 53.3 (11.6) | 59.8 (6.1) | 55.9 (10.1) | 0.29 |
| Postoperative | 49.2 (14.4) | 57.6 (6.3) | 52.3 (10.6) | 0.18 | 48.9 (12.6) | 56.0 (8.9) | 53.1 (5.7) | 0.45 |
| Change (post–pre) | −2.2 (14.1) | 4.4 (10.6) | −0.6 (11.3) | 0.39 | −4.1 (11.9) | −4.0 (11.1) | −2.5 (7.9) | 0.97 |
| P-value | 0.77 | 0.11 | 0.78 | 0.086 | 0.58 | 0.31 | ||
*
All P-values comparing intraarticular intervention have been adjusted for surgical group.
a,b
Post hoc pairwise comparisons, connecting letters report: groups that share the same letter do not differ statistically.
c
Minimal clinically important difference [21].