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Table 2 Operative data and length of hospital stay among posttraumatic OA knee (fracture PTOA and ligamentous PTOA) and primary OA knee

From: TKR after posttraumatic and primary knee osteoarthritis: a comparative study

Operative data

Mean ± SD (range)

n (%)

p value

Require femoral osteotomy before TKA

  

N/A

Fracture PTOA (n=32)

 

 

Ligamentous PTOA (n=104)

 

0

 

Primary OA (n=716)*

 

0

 

Operative time (minutes)

 Fracture PTOA (n=32)

125.3±48.0 (75-290)

 

<0.0001

 Ligamentous PTOA (n=104)

106.5±22.3 (50-202)

 

0.009

 Primary OA (n=716)*

100.1±18.8 (48-197)

  

Blood loss (milliliters)

 Fracture PTOA

175.9±130.7 (50-500)

 

0.06

 Ligamentous PTOA

123.5±96.3 (25-500)

 

0.94

 Primary OA*

118.5±139.5 (25-270)

  

Length of stay (days)

 Fracture PTOA

3.1±2.1 (1.0-13.0)

 

0.63

 Ligamentous PTOA

2.6±1.2 (2.0-12.0)

 

0.12

 Primary OA*

2.9±1.2 (1.0-12.0)

  
  1. *Reference; significant at p<0.05