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Table 1 Patient and fracture characteristics

From: Immediate weight-bearing is safe following lateral locked plate fixation of periprosthetic distal femoral fractures

Variable WBAT (n = 28) RWB (n = 15) p value
Age (years) 83.1 (11.6) 76.8 (11.1) 0.092*
BMI 26.5 (5.6) 27.6 (6.1) 0.591*
BMI ≥30 8 [28.6] 5 [33.3] 0.564^
Female gender 24 [85.7] 13 [86.7] 0.932^
Osteoporosis 9 [32.1] 2 [13.3] 0.273^^
Bisphosphonates 4 [14.2] 1 [6.7] 0.639^^
Pre-fracture functional mobility scale
 0 - Full activity 9 [32.1] 6 [40.0] 0.771^
 1 - Walking with assistance  8 [28.6] 5 [33.3]  
 2 - Walking with assistance for short periods only 4 [14.3] 3 [20.0]  
 3 - Walking with assistance for ADLs/appointments only  2 [7.1] 0  
 4 - Confined to a wheelchair 1 [3.6] 0  
 5 - Bedridden 1 [3.6] 0  
Fracture features
 Su classification    0.891
  I 6 [21.4] 4 [26.7]  
  II 17 [60.7] 8 [53.3]  
  III 5 [17.9] 3 [20.0]  
Medial comminution 4 [14.3] 5 [33.3] 0.238^^
Interprosthetic 2 [7.1] 5 [33.3] 0.040^
Time since TKA (years) 10.4 (5.7) 7.6 (4.5) 0.124*
Surgical parameters
 Time to surgery (days) 3 2 0.238**
 Anatomic reduction 19 [67.9] 9 [60.0] 0.606^
 Golf-club deformity 3 [10.7] 2 [13.3] 1.00^^
 Cables 8 [28.6] 7 [46.7] 0.235^
 Dual plating 3 [10.7] 2 [13.3] 1.00^^
 Open approach 13 [46.4] 9 [60.0] 0.755^
  1. Data presented as mean (SD) or number [%]
  2. BMI body mass index, RWB restricted weight-bearing, TKA total knee arthroplasty, WBAT weight-bearing as tolerated
  3. * Unpaired T-test
  4. ** Mann Whitney U test
  5. ^ Chi square
  6. ^^ Fisher's exact