Table 6.
Comparison of pre-operative and post-operative total hip replacement patient reported outcome measure scores: Cemented, uncemented and hybrid fixations
|
|
|
Cemented (n = 36), median (IQR)
|
Uncemented (n = 28), median (IQR)
|
Hybrid (n = 4), median (IQR)
|
P value1
|
H value
|
| HOOS pain | Pre-operative | 35 (22.4-44.6) | 31 (25-38) | 40 (33-X) | 0.512 | 1.338 |
| Post-operative | 95 (70-100) | 98 (93-100) | 89 (83- X) | 0.332 | 2.205 | |
| HOOS symptoms | Pre-operative | 40 (30-50) | 35 (29-45) | 35 (15-X) | 0.544 | 1.216 |
| Post-operative | 85 (75-90) | 95 (85-100) | 73 (65-X) | 0.046a | 6.614 | |
| HOOS ADL | Pre-operative | 37 (25-43) | 35 (28-44) | 40 (35-X) | 0.808 | 0.425 |
| Post-operative | 91 (68-96) | 98 (84-100) | 80 (66-X) | 0.176 | 3.479 | |
| HOOS Sport/Rec | Pre-operative | 16 (5-27) | 25 (6-43) | 25 (19-X) | 0.611 | 0.986 |
| Post-operative | 75 (48-95) | 94 (75-100) | 59 (50-X) | 0.111 | 4.405 | |
| HOOS QoL | Pre-operative | 19 (6-31) | 19 (13-38) | 31 (25-X) | 0.401 | 1.827 |
| Post-operative | 75 (50-94) | 88 (69-100) | 56 (50-X) | 0.259 | 2.703 | |
| Overall HOOS | Pre-operative | 26.1 (19.7-40.0) | 29.7 (21.5-40.3) | 35.9 (25.3-X) | 0.812 | 0.418 |
| Post-operative | 88.4 (64.8-92.2) | 95.0 (79.0-98.8) | 71.4 (65.2-X) | 0.130 | 4.086 | |
| WOMAC pain | Pre-operative | 45 (25-55) | 35 (30-40) | 40 (35-X) | 0.497 | 1.398 |
| Post-operative | 95 (65-100) | 95 (90-100) | 90 (80-X) | 0.764 | 0.538 | |
| WOMAC stiffness | Pre-operative | 25 (25-50) | 25 (25-38) | 25 (25-X) | 0.964 | 0.074 |
| Post-operative | 88 (75-88) | 88 (75-100) | 69 (63-X) | 0.170 | 3.540 | |
| WOMAC function | Pre-operative | 39.7 (26.5-50.0) | 34.6 (29.0-44.1) | 39.7 (35.3-X) | 0.790 | 0.472 |
| Post-operative | 91.2 (67.7-95.6) | 98.5 (83.8-100) | 80.1 (66.2-X) | 0.190 | 3.317 | |
| Oxford hip score | Pre-operative | 14 (10-19) | 14 (11-22) | 19 (17-X) | 0.238 | 2.872 |
| Post-operative | 41 (33-46) | 44 (39-47) | 38 (34-X) | 0.347 | 2.118 | |
| EQ-5D index | Pre-operative | 0.375 (0.155-0.533) | 0.314 (0.217-0.535) | 0.604 (0.482-X) | 0.128 | 4.106 |
| Post-operative | 0.836 (0.592-1) | 1 (0.747-1) | 0.790 (0.580-X) | 0.529 | 1.274 | |
| EQ-5D VAS | Pre-operative | 65 (50-80) | 65 (39-80) | 60 (60-X) | 0.938 | 0.127 |
| Post-operative | 90 (70-95) | 90 (80-98) | 80 (65-X) | 0.779 | 0.499 | |
| SF-12 PCS | Pre-operative | 25.0 (21.1-27.3) | 25.3 (21.9-31.1) | 24.7 (20.4-X) | 0.597 | 1.030 |
| Post-operative | 50.6 (32.3-54.8) | 53.4 (43.3-55.8) | 42.9 (36.4-X) | 0.447 | 1.610 | |
| SF-12 MCS | Pre-operative | 49.5 (41.1-58.2) | 50.6 (38.7-58.6) | 50.7 (34.4-X) | 0.980 | 0.040 |
| Post-operative | 56.6 (53.7-59.8) | 59.2 (57.3-60.8) | 47.1 (36.1-X) | 0.128 | 4.104 |
1
Kruskal Wallis H test.
a
Statistically significant P < 0.05.
IQR: Interquartile range; HOOS: Hip Osteoarthritis Outcome Score; ADL: Activities of daily living; Sport/Rec: Sports and recreation; QoL: Quality of life; WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index; EQ-5D: EuroQol-5D index; VAS: Visual Analogue Scale; SF-12: Short Form 12 item survey; PCS: Physical component summary; MCS: Mental component summary.