Table 1.

Patient characteristics.

Age at rTHA (years)	Median, interquartile Range 68.2 (61.2–78.4)
Sex	Number (%)
Female	12 (39%)
Male	19 (61%)
Body Mass Index (BMI, kg/m2)	Median, interquartile range 26.7 (24.6–29.4)
Comorbidities (Charlson Score/Index)	Median, interquartile range Score: 3 (2–5) Index: 10.3% (6.9–17.2%)
Indications for primary THA	Number (%)
Osteoarthritis	24 (77.4%)
Femoral neck fracture	3 (9.7%)
Femoral head necrosis	4 (12.9%)
Type of primary stem	Number (%)
Cemented	9 (29%)
Cementless	22 (71%)
Approach in primary THA	Number (%)
Anterior	16 (51.6%)
Anterolateral	1 (3.2%)
Lateral	13 (42.0%)
Posterior	1 (3.2%)
Indications for rTHA	Number (%)
Aseptic loosening	18 (58.0%)
Recurrent dislocation (aseptic)	3 (9.7%)
Infection	10 (32.3%)
Approach in rTHA	Number (%)
Anterior	6 (19.3%)
Lateral	15 (48.4%)
Posterior	10 (32.3%)
Components in rTHA	Number (%)
Stem only	8 (25.8%)
Stem and cup	23 (74.2%)
Time between primary THA and rTHA (years)	Median, interquartile range 2.7 (0.6–9.3)
Time between rTHA and last follow-up (years)	Median, interquartile range 2.3 (1.2–3.7)