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Table 2 Baseline characteristics of the study patients

From: Mid- and long-term efficacy of surgical treatment of Vancouver B2 and B3 periprosthetic femoral fractures

Classification B2 B3 Total
Number 69(83%) 14(17%) 83(100%)
Gender (female/male) 38/31 9/5  
Age (years) 63.4 ± 9.1 66.4 ± 11.3 63.9 ± 9.5
Stem before revision
 uncemented 47(57%) 7(8%) 54(65%)
 cemented stem 22(27%) 7(8%) 29(35%)
Injury mechanism
 mild trauma 59(71%) 5(6%) 64(77%)
 immense trauma 6(7%) 7(8%) 13(15%)
 unknown cause 4(5%) 2(3%) 6(8%)
Comorbidities (principal)
 Cardiovascular diseases 27(33%) 7(8%) 34(41%)
 Respiratory diseases 15(18%) 3(4%) 18(22%)
 Endocrine diseases 9(11%) 2(3%) 11(14%)
 Other 7(8%) 2(3%) 9(11%)
 ASA1 5(6%) 0 5(6%)
 ASA2 12(14%) 2(3%) 14(17%)
 ASA3 32(39%) 7(8%) 39(47%)
 ASA4 20(24%) 5(6%) 25(30%)
 SF-36 (Pre) 28.6 ± 10.4 31.0 ± 12.3 29.0 ± 10.7