Glossary entry (derived from question below)
English term or phrase:
45 degrees of knee flexion (deformity)
English answer:
a 45 degree angle measured at the popliteal fossa, or a 135 degree angle at the patella
Added to glossary by
Elena Sgarbo (X)
Mar 4, 2004 01:43
20 yrs ago
English term
Expertise in chemistry and pharmacy
Native in: Polish 
Works in: English to Polish, Polish to English
45 degrees of flexion (deformity)
English
Medical
Medical (general)
knee deformity
What does "flexion" mean in THIS conext (provided below)?
Maybe "genu recurvatum" (genu recurvatum is a condition where there is hyperextension of the knees - see http://www.echo.uqam.ca/mednet/anglais/hermes_a/knee/part_1....
I have to translate this text into Polish.
CONTEXT (clinical studies - knee joint prosthesis):
EXCLUSION CRITERIA
1. Patient has had a prior procedure of high tibial osteotomy, cruciate ligament reconstruction or patellectomy of the surgical knee.
....
3. Patient has a deformity at the involved knee greater than 45 degrees of flexion, 45 degrees of varus or 45 degrees of valgus.
4. Patients has an active or suspected latent infection in or about the knee joint.
5. Patients has a malignancy in the area of the involved knee joint.
Maybe "genu recurvatum" (genu recurvatum is a condition where there is hyperextension of the knees - see http://www.echo.uqam.ca/mednet/anglais/hermes_a/knee/part_1....
I have to translate this text into Polish.
CONTEXT (clinical studies - knee joint prosthesis):
EXCLUSION CRITERIA
1. Patient has had a prior procedure of high tibial osteotomy, cruciate ligament reconstruction or patellectomy of the surgical knee.
....
3. Patient has a deformity at the involved knee greater than 45 degrees of flexion, 45 degrees of varus or 45 degrees of valgus.
4. Patients has an active or suspected latent infection in or about the knee joint.
5. Patients has a malignancy in the area of the involved knee joint.
Responses
| 4 +4 | a 45 degree angle measured at the popliteal fossa, or a 135 degree angle at the patella |
Elena Sgarbo (X)
|
| 5 | just "45 degrees of flexion" |
Hervé du Verle
|
Responses
+4
10 mins
Selected
a 45 degree angle measured at the popliteal fossa, or a 135 degree angle at the patella
Hi Barbara
I understand that the knee deformities can be, as you say, valgus (45 degrees), varus (45 degrees), and flexion. The measurement of the flexion deformity (i.e., the leg in a position as to go up a step) seems to have been taken from the supplementary angle...
Hope this helps
Elena
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Note added at 1 hr 50 mins (2004-03-04 03:34:19 GMT)
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::::::::: Barbara: The text mentions a flexion deformity rather than a contracture. \"Deformity\" usually implies a permanent status, where not only muscles are contracted, but also irreversible changes in the articular components have occurred (for example: arthritis, frozen joint).
HTH :-)
E
I understand that the knee deformities can be, as you say, valgus (45 degrees), varus (45 degrees), and flexion. The measurement of the flexion deformity (i.e., the leg in a position as to go up a step) seems to have been taken from the supplementary angle...
Hope this helps
Elena
--------------------------------------------------
Note added at 1 hr 50 mins (2004-03-04 03:34:19 GMT)
--------------------------------------------------
::::::::: Barbara: The text mentions a flexion deformity rather than a contracture. \"Deformity\" usually implies a permanent status, where not only muscles are contracted, but also irreversible changes in the articular components have occurred (for example: arthritis, frozen joint).
HTH :-)
E
Peer comment(s):
| agree |
Patricia Baldwin
: Hola Ele, una respuesta de 5 estrellas *****Besotes!
18 mins
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Thank you so much, Pat!! Cariños a BA :-))
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| agree |
Mario Marcolin
: :) ciao elena
6 hrs
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Ciao Mario, grazie! :-)
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| agree |
Jacqueline van der Spek
7 hrs
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Thanks, Jacqueline
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| agree |
Vicky Papaprodromou
9 hrs
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Thanks Vicky
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4 KudoZ points awarded for this answer.
Comment: "It seems more clear now.
Thanks to all of you!"
1 hr
Hervé du Verle
Specializes in field
23 yrs in French medical edition
Native in: French (Variant: Canadian) 
Works in: English to French, French to English, English, and 1 more.
Related KudoZ points
:
12
just "45 degrees of flexion"
Keep the exact wording in this text. These are standard contraindications for knee prosthesis, in clinical studies: important varus, or valgus, or flessum superior to 45°. When you look at the whole limb in normal extension from one side (for instance, upstanding), a flexion of 45° means that the leg will form an angle of 45° with a theoretical vertical line and the sole will look backwards. There is apparently no genu recurvatum mentioned here (knee prosthesis is not a major indication in that case).
In short, it is a flexed leg, but "too flexed" to consider including the patient in a clinical study...
In short, it is a flexed leg, but "too flexed" to consider including the patient in a clinical study...
Discussion