Table 2: Radiographic findings.

Radiographic Findings 6–12 Weeks
(n = 199)
12 Months
(n = 198)
24 Months
(n = 190)
Stem migration 6 (3.0) 1 (0.5) 1 (0.5)
Osteolysis of femoral bone 0 (0.0) 0 (0.0) 0 (0.0)
Resorption of femoral bone 0 (0.0) 0 (0.0) 1 (0.5)
Resorption of calcar 4 (2.0) 3 (1.5) 2 (1.1)
Interface radiolucent lines 0 (0.0) 0 (0.0) 1 (0.5)
Hypertrophy of femoral bone 1 (0.5) 3 (1.5) 1 (0.5)
Heterotopic ossification - - -
Brooker I (islands) 2 (1.0) 3 (1.5) 4 (2.1)
Brooker II / III (spurs) 1 (0.5) 3 (1.5) 1 (0.5)
Brooker IV (ankylosis) 0 (0.0) 0 (0.0) 0 (0.0)

Radiographic findings made at the three follow-up examinations, in comparison with the previous examination timepoint. Values reported as number of cases (%). n: number of total hip arthroplasties.