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Table 1 Patient and implant characteristics of 19,682 THA in patients younger than 55 years old

From: The risk of revision after total hip arthroplasty in young patients depends on surgical approach, femoral head size and bearing type; an analysis of 19,682 operations in the Dutch arthroplasty register

  N (%)
Male 9127 (46.4)
Age (y)a 49.0 (45.0–52.0)
ASA-classification
 ASA I 9323 (47.4)
 ASA II 8371 (42.5)
 ASA III-IV 1368 (7.0)
Diagnosis
 Primary osteoarthritis 13,035 (66.2)
 Secondary osteoarthritis 6453 (32.8)
Fixation
 Cemented 1924 (9.8)
 Uncemented 15,701 (79.8)
 Hybrid 312 (1.6)
 Reversed hybrid 1614 (8.2)
Head Diameter
 22–26 mm 163 (0.8)
 28 mm 5600 (28.5)
 32 mm 8165 (41.5)
 36 mm 4212 (21.4)
 ≥ 38 mm 750 (3.8)
Bearing type
 C-PE 9493 (48.2)
 MoM 899 (4.6)
 M-PE 3825 (19.4)
 CoC 2701 (13.7)
 Zr-PE 1132 (5.8)
Surgical approach
 Posterolateral 12,367 (62.8)
 Anterior 2053 (10.4)
 Direct lateral 4014 (20.4)
 Anterolateral 1248 (6.3)
  1. aMedian (IQR)