Skip to main content

Table 1 Patients’demographic data between the two groups

From: Excellent outcomes with Oxford Uni-compartmental knee arthroplasty in anteromedial osteoarthritis patients (≤60 years) at mid-term follow-up

Variables Younger group(≤60 years) Elderly group(>60 years) F value/x2 P value
Knees 96 156
Age(years) 55.6 ± 4.0 69.0 ± 5.9 −19.70 < 0.001
Sex    0.231 0.631
 female 68(70.8%) 106(67.9%)   
 male 28(29.2%) 50(32.1%)   
Operation Side    0.632 0.427
 right 56(58.3%) 83(53.2%)   
 left 40(41.7%) 73(46.8%)   
BMI(Kg/m2) 26.9 ± 1.6 27.2 ± 2.7 −1.413 0.159
ASA classification    0.718 0.397
 1 to 2 81(84.4%) 125(80.1%)   
 3 to 4 15(15.6%) 31(19.9%)   
OA grade in MC(KL)    1.462 0.227
 III 36(37.5%) 47(30.1%)   
 IV 60(62.5%) 109(69.9%)   
Follow-up(months) 73.6 ± 4.1 74.7 ± 6.2 −1.521 0.130
  1. Values are expressed as mean ± SD (standard deviation)or number (percentage); BMI body mass index, ASA American society of anesthesiologist, OA osteoarthritis, MC medial compartment, KL Kellgren-Lawrence score