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Table 2 Patient demographics in octogenarians who underwent primary or revision total knee arthroplasty

From: Mid-term lifetime survivals of octogenarians following primary and revision total knee arthroplasties were satisfactory: a retrospective single center study in contemporary period

  Primary Revision p value
Knee 231 41  
Age 81.9 ± 2.2 (80–90) 82.3 ± 2.2 (80–87) 0.310
Female/male 212/19 37/4 0.761
Right/left 116/115 20/21 1.000
Body mass index (kg/m2) 25.0 ± 3.0 (17.8–33.8) 25.6 ± 5.6 (18.1–30.9) 0.318
ASA score 2.3 ± 0.4 (2–3) 2.4 ± 0.5 (2–3) 0.806
ACCI 4.4 ± 0.6 (4–7) 4.8 ± 0.8 (4–8) 0.003
Last follow-up period (year)a 3.8 ± 0.6 (0.5–13) 3.5 ± 3.0 (0.5–11) 0.451
  1. Data on the age, body mass index, American Society of Anesthesiologists (ASA) score, age-adjusted Charlson comorbidity index (ACCI), and last follow-up period are presented as the mean ± standard deviation (range)
  2. aLast follow-up period is the follow-up period up to the last outpatient department visit