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Table 2 Score of Freeman et al. [7]

From: Low-grade infections as a possible cause of arthrofibrosis after total knee arthroplasty

Pain None 50 “acceptable”
Mild (an “occasional twinge”, not a spontaneous complaint, does not require analgesia, does not limit function) 40 “acceptable”
Moderate (may require analgesia but does not limit function) 15  
Severe (any other pain) 0  
Ability to walk Outdoors, 30 minutes or more 20 “acceptable”
Outdoors, 0 - 30 minutes 15 “acceptable”
Indoors 5  
Unable 0  
Range of motion 80 ° 30 “acceptable”
60 ° - 79 ° 20  
30 ° - 59 ° 5  
0 ° - 29 ° 0  
If “acceptable” in all three categories add: 10  
Acceptable Result: Overall assessment 95 - 110 points
Pain 40 - 50 points
Function 15 - 20 points
Movement 30 points