High Flexion Knee Score (HFKS) Following Total Knee Arthroplasty

 

Parameters (2 pain and 7 functional measures during high-flexion knee maneuvers):

(1) pain on ascending or descending stairs

(2) pain while sitting on or rising from the floor

(3) difficulty ascending stairs

(4) difficulty descending stairs

(5) difficulting sitting on or rising from the floor

(6) difficulty sitting on or rising from a low chair

(7) difficulty with cross-legged sitting

(8) difficulty squatting

(9) difficulty kneeling

Pain Measures	Points
none	5
mild	4
moderate	3
severe	2
extreme	1

 

 

Functional Measures	Points
no difficulty	5
mild difficulty	4
moderate difficulty	3
severe difficulty	2
extreme difficulty	1

 

total score =

= SUM(points for all 9 measures)

 

Interpretation:

• minimum score: 9

• maximum score: 45

• The higher the score the better the knee function.