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Table 2 Reasons for revision surgery

From: Straight stem and threaded cup in patients under 60 years of age: 28.8–30.2 years of follow-up

Type of failure Absolute number Absolute risk
Wear 11 14.67%
Septic loosening 3 4%
Aseptic loosening of stem 2 2.67%
Periprosthetic fracture 2 2.67%
Aseptic loosening of cup 2; 1 with loose stem; 1 with worn-out liner 2.67%
Major calcification 2 2.67%
Implant fracture (stem) 1 1.33%
Totally worn-out liner 1 1.33%
Overall patients needing revision surgery 22 29.3%