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IKDC Subjective Knee Evaluation Form and Scoring Instructions

IKDC Subjective Knee Evaluation Form and Scoring Instructions - Clinical Hub, UW Health Clinical Tool Search, UW Health Clinical Tool Search, Questionnaires


2000 IKDC SUBJECTIVE KNEE EVALUATION FORM
Your Full Name______________________________________________________
Today’s Date: ______/_______/______ Date of Injury: ______/________/_____
Day Month Year Day Month Year
SYMPTOMS*:
*Grade symptoms at the highest activity level at which you think you could function without significant symptoms,
even if you are not actually performing activities at this level.
1. What is the highest level of activity that you can perform without significant knee pain?
4�Very strenuous activities like jumping or pivoting as in basketball or soccer
3�Strenuous activities like heavy physical work, skiing or tennis
2�Moderate activities like moderate physical work, running or jogging
1�Light activities like walking, housework or yard work
0�Unable to perform any of the above activities due to knee pain
2. During the past 4 weeks, or since your injury, how often have you had pain?
012345678910
Never
�����������
Constant
3. If you have pain, how severe is it?
No
pain
Worst pain
imaginable
012345678910
�����������
4. During the past 4 weeks, or since your injury, how stiff or swollen was your knee?
4�Not at all
3�Mildly
2�Moderately
1�Very
0�Extremely
5. What is the highest level of activity you can perform without significant swelling in your knee?
4�Very strenuous activities like jumping or pivoting as in basketball or soccer
3�Strenuous activities like heavy physical work, skiing or tennis
2�Moderate activities like moderate physical work, running or jogging
1�Light activities like walking, housework, or yard work
0�Unable to perform any of the above activities due to knee swelling
6. During the past 4 weeks, or since your injury, did your knee lock or catch?
0�Yes 1�No
7. What is the highest level of activity you can perform without significant giving way in your knee?
4�Very strenuous activities like jumping or pivoting as in basketball or soccer
3�Strenuous activities like heavy physical work, skiing or tennis
2�Moderate activities like moderate physical work, running or jogging
1�Light activities like walking, housework or yard work
0�Unable to perform any of the above activities due to giving way of the knee

Page 2 – 2000 IKDC SUBJECTIVE KNEE EVALUATION FORM
SPORTS ACTIVITIES:
8. What is the highest level of activity you can participate in on a regular basis?
4�Very strenuous activities like jumping or pivoting as in basketball or soccer
3�Strenuous activities like heavy physical work, skiing or tennis
2�Moderate activities like moderate physical work, running or jogging
1�Light activities like walking, housework or yard work
0�Unable to perform any of the above activities due to knee
9. How does your knee affect your ability to:
Not difficult
at all
Minimally
difficult
Moderately
Difficult
Extremely
difficult
Unable
to do
a. Go up stairs
4� 3� 2� 1� 0�
b. Go down stairs
4� 3� 2� 1� 0�
c. Kneel on the front of your knee
4� 3� 2� 1� 0�
d. Squat
4� 3� 2� 1� 0�
e. Sit with your knee bent
4� 3� 2� 1� 0�
f. Rise from a chair
4� 3� 2� 1� 0�
g. Run straight ahead
4� 3� 2� 1� 0�
h. Jump and land on your involved leg
4� 3� 2� 1� 0�
i. Stop and start quickly
4� 3� 2� 1� 0�
FUNCTION:
10. How would you rate the function of your knee on a scale of 0 to 10 with 10 being normal, excellent function
and 0 being the inability to perform any of your usual daily activities which may include sports?
FUNCTION PRIOR TO YOUR KNEE INJURY:
012345678910
Couldn’t
perform
daily
activities
�����������
No
limitation
in daily
activities
CURRENT FUNCTION OF YOUR KNEE:
012345678910
Can’t
perform
daily
activities
�����������
No
limitation
in daily
activities

Scoring Instructions for the 2000 IKDC Subjective Knee Evaluation Form
Several methods of scoring the IKDC Subjective Knee Evaluation Form were investigated. The results indicated
that summing the scores for each item performed as well as more sophisticated scoring methods.
The responses to each item are scored using an ordinal method such that a score of 0 is given to responses that
represent the lowest level of function or highest level of symptoms. For example, item 1, which is related to the
highest level of activity without significant pain is scored by assigning a score of 0 to the response “Unable to
perform any of the above activities due to knee pain” and a score of 4 to the response “Very strenuous activities
like jumping or pivoting as in basketball or soccer”. For item 2, which is related to the frequency of pain
over the past 4 weeks, the responses are reverse-scored such that “Constant” is assigned a score of 0
and “Never” is assigned a score of 10. Similarly, for item 3, the responses are reversed-scored such
that “Worst pain imaginable” is assigned a score of 0 and “No pain” is assigned a score of 10. Note:
previous versions of the form had a minimum item score of 1 (for example, ranging from 1 to 11). In the most
recent version, all items now have a minimum score of 0 (for example, 0 to 10). To score these prior versions, you
would need to transform each item to the scaling for the current version.
The IKDC Subjective Knee Evaluation Form is scored by summing the scores for the individual items and then
transforming the score to a scale that ranges from 0 to 100. Note: The response to item 10a “Function Prior to
Knee Injury” is not included in the overall score. To score the current form of the IKDC, simply add the score for
each item (the small number by each item checked) and divide by the maximum possible score which is 87:
100x
Score PossibleMaximum
ItemsofSum
ScoreIKDC







Thus, for the current version, if the sum of scores for the 18 items is 45 and the patient responded
to all the items, the IKDC Score would be calculated as follows:
100x
87
45
ScoreIKDC







�ScoreIKDC 51.7
The transformed score is interpreted as a measure of function such that higher scores represent higher levels of
function and lower levels of symptoms. A score of 100 is interpreted to mean no limitation with activities of daily
living or sports activities and the absence of symptoms.
The IKDC Subjective Knee Form score can be calculated when there are responses to at least 90% of the items
(i.e. when responses have been provided for at least 16 items). In the original scoring instructions for the IKDC
Subjective Knee Form, missing values are replaced by the average score of the items that have been answered.
However, this method could slightly over- or under-estimate the score depending on the maximum value of the
missing item(s) (2, 5 or 11 points). Therefore, in the revised scoring procedure for the current version of a form
with up to two missing values, the IKDC Subjective Knee Form Score is calculated as (sum of the completed items)
/ (maximum possible sum of the completed items) * 100. This method of scoring the IKDC Subjective Knee Form
is more accurate than the original scoring method.
A scoring spreadsheet is also available at: www.sportsmed.org/research/index.asp This spreadsheet uses the
current form scores and the revised scoring method for calculating scores with missing values.