Skip to main content

Table 1 Demographic information

From: Minimally invasive plate osteosynthesis with dual plating for periprosthetic distal femoral fractures following total knee arthroplasty

Patient parameter Value
Mean age, (years) 74.8 ± 5.9 (68–89)
Sex, n (%)  
Male 0 (0.0)
Female 18 (100.0)
Body mass index (kg/m2) 24.2 ± 3.9 (16.4–29.9)
Bone mineral density(T-score) −2.0 ± 1.2 (−4.3–0.3)
ASAa physical status class, n (%)  
I 1 (5.6)
II 15 (83.3)
III 2 (11.1)
Operative side, n (%)  
Left 11 (61.1)
Right 7 (38.9)
Su classification, n (%)  
Type I 2 (11.1)
Type II 3 (16.7)
Type III 13 (72.2)
Operative time (minutes) 146.2 ± 44.8 (92–255)
Hospitalization days (days) 45.9 ± 32.6 (6–123)
Follow-up (months) 14.8 ± 10.2 (12–43)
Time to callus formation (weeks) 7.8 ± 3.5 (2–14)
Time to bone union (weeks) 18.4 ± 9.8 (10–51)
JLETSb 37.6 ± 8.5 (24–53)
Knee ROMc 110.3 ± 15.7 (80–135)
Varus-valgus angle (degrees) 3.2 ± 3.3 (−2.9–10.5)
Shortening, n (%) 12 (66.7)
Complication, n (%)  
Malunion 3 (16.7)
Nonunion 0 (0.0)
  1. Note: Data presented as mean ± standard deviation unless otherwise indicated
  2. aAmerican Society of Anesthesiologists, bJeju Lower Extremity Trauma Scale (the modified WOMAC), crange of motion