age > 80 years;
Kellgren-Lawrence score at X-ray evaluation > 3;
major axial deviation (varus >5° , valgus > 5°),
systemic disorders such as diabetes, rheumatoid arthritis, haematological diseases (coagulopathy), severe cardiovascular diseases, infections, immunodepression;
patients in therapy with anticoagulants or antiaggregants;
use of NSAIDs in the 5 days before blood donation;
patients with Hb values < 11 g/dl and platelet values < 150,000/mmc.

NCT02923700_exc_T1
Person
age
NCT02923700_exc_T2
Value
> 80 years
NCT02923700_exc_T3
Measurement
Kellgren-Lawrence score
NCT02923700_exc_T4
Procedure
X-ray evaluation
NCT02923700_exc_T5
Value
> 3
NCT02923700_exc_T6
Condition
major axial deviation
NCT02923700_exc_T7
Measurement
varus
NCT02923700_exc_T8
Measurement
valgus
NCT02923700_exc_T9
Value
>5°
NCT02923700_exc_T10
Value
> 5°
NCT02923700_exc_T11
Scope
varus >5° , valgus > 5°
NCT02923700_exc_T12
Condition
systemic disorders
NCT02923700_exc_T13
Condition
diabetes
NCT02923700_exc_T14
Condition
rheumatoid arthritis
NCT02923700_exc_T15
Condition
haematological diseases
NCT02923700_exc_T16
Condition
coagulopathy
NCT02923700_exc_T17
Qualifier
severe
NCT02923700_exc_T18
Condition
cardiovascular diseases
NCT02923700_exc_T19
Condition
infections
NCT02923700_exc_T20
Condition
immunodepression
NCT02923700_exc_T21
Scope
diabetes, rheumatoid arthritis, haematological diseases (coagulopathy), severe cardiovascular diseases, infections, immunodepression
NCT02923700_exc_T22
Drug
anticoagulants
NCT02923700_exc_T23
Drug
antiaggregants
NCT02923700_exc_T24
Procedure
therapy
NCT02923700_exc_T25
Scope
anticoagulants or antiaggregants
NCT02923700_exc_T26
Drug
NSAIDs
NCT02923700_exc_T27
Temporal
in the 5 days before blood donation
NCT02923700_exc_T28
Measurement
Hb
NCT02923700_exc_T29
Value
< 11 g/dl
NCT02923700_exc_T30
Measurement
platelet
NCT02923700_exc_T31
Value
< 150,000/mmc