Skip to main content

Table 5 Complications for two study groups

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

  1. Statistically significant p values are italicized and denoted by an asterisk (*)
  2. aOther complications include diarrhea, spinal headache, urinary retention, squeaking implant, and other uncommon causes not built into the database