Mid-term clinical outcomes of the uncemented Robert Mathys pressfit cup

Table 1 Baseline demographic and clinical characteristics of the study population, n (%)

	N = 1324 THA’s
Demographic characteristics
Age at surgery, yr, mean (SD)	64.9 ± 11.6
Female gender	835 (63.1)
Right side	724 (54.7)
BMI, kg/m2, mean (SD)	26.4 ± 4.1
Clinical characteristics
Diagnoses
Osteoarthritis	948 (71.6)
Dysplasia	55 (4.2)
Fracture	28 (2.1)
Osteonecrosis	37 (2.8)
Rheumatoid arthritis	21 (1.6)
Posttraumatic	26 (2.0)
Other	19 (1.4)
Surgical approaches
Anterior	254 (19.2)
Anterolateral	219 (16.5)
Posterolateral	50 (3.8)
Straight lateral	613 (46.3)
Unknown	188 (14.2)

BMI: Body mass index; THA: Total hip arthroplasty.