45 degrees of flexion (deformity)
English translation: a 45 degree angle measured at the popliteal fossa, or a 135 degree angle at the patella
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| 01:43 Mar 4, 2004 |
| English language (monolingual) [PRO] Medical - Medical (general) / knee deformity | |||||||
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|  Selected response from: Elena Sgarbo (X) | ||||||
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| SUMMARY OF ALL EXPLANATIONS PROVIDED | ||||
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| 4 +4 | a 45 degree angle measured at the popliteal fossa, or a 135 degree angle at the patella |
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| 5 | just "45 degrees of flexion" |
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| Discussion entries: 2 | |
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Answers
1 hr confidence: 
just "45 degrees of flexion" Explanation: 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... |
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10 mins confidence: 
peer agreement (net): +4
peer agreement (net): +4a 45 degree angle measured at the popliteal fossa, or a 135 degree angle at the patella Explanation: 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 -------------------------------------------------- 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 |
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