Items | <36-month subgroupa | 36–72-month subgroupb | > 72-month subgroupc | |||
---|---|---|---|---|---|---|
PEG | MBG | PEG | MBG | PEG | MBG | |
Age (years) | 66.7 | 64.8 | 66.9 | 67.3 | 66.7 | 62.7 |
Number of radiolucency (%) | 38/439 (7.3%) | 8/65 (12.3%) | 20/229 (8.7%) | 31/182 (17.0%) | 256/640 (40.0%) | 8/35 (22.9%) |
P = 0.355 | P = 0.015 * | P = 0.05 | ||||
Number of loosening | 2/420 (0.5%) | 5/65 (7.7%) | 19/1459 (1.3%) | 17/269 (6.3%) | 402/1191 (33.8%) | 0/115 (0%) |
P < 0.001 * | P < 0.001 * | P < 0.001 * | ||||
Number of failure (=revision) | 19/424 (4.5%) | 4/65 (6.2%) | 37/1503 (2.5%) | 5/277 (1.8%) | 106/1272 (8.3%) | 2/115 (1.7%) |
P = 0.754 | P = 0.829 | P = 0.006 * |