From: Metal-on-metal hip resurfacing in patients younger than 50 years: a retrospective analysis
Type | Group 1 | Group 2 | p value |
---|---|---|---|
No. of cases | 1285 | 1984 | – |
Complications | |||
1) Acetabular complications | |||
Loose acetabular component | 1 (0.1%) | 0 (0%) | 0.2150 |
Acetabular component shift | 2 (0.2%) | 18 (0.9%) | 0.0071* |
2) Femoral complications | |||
Loose femoral component | 1 (0.1%) | 1 (0.1%) | 0.7566 |
Femoral component shift | 0 (0%) | 1 (0.1%) | 0.4237 |
3) Other complications | |||
Psoas tendonitis | 1 (0.1%) | 0 (0%) | 0.2150 |
Sciatic nerve palsy | 3 (0.2%) | 2 (0.1%) | 0.3421 |
Hip dislocation | 4 (0.3%) | 12 (0.6%) | 0.2420 |
Late fracture | 2 (0.2%) | 2 (0.1%) | 0.6599 |
Pulmonary embolus | 3 (0.2%) | 2 (0.1%) | 0.3421 |
Spinal headache | 2 (0.2%) | 1 (0.1%) | 0.3320 |
Embolic stroke | 1 (0.1%) | 2 (0.1%) | 0.8337 |
Unexplained pain | 0 (0%) | 3 (0.2%) | 0.1645 |
Psoas hematoma | 1 (0.1%) | 0 (0%) | 0.2150 |
Abductor tear | 0 (0%) | 3 (0.2%) | 0.1645 |
Deep vein thrombosis | 2 (0.2%) | 5 (0.3%) | 0.5619 |
Other complicationsa | 1 (0.1%) | 9 (0.5%) | 0.0574 |