ID.1
Item
age (50 80 yrs) with monofilament test 10 g (> 4/8)
boolean
ID.2
Item
refusal of sciatic nerve block,
boolean
ID.3
Item
age < 50 yr or > 80 yr,
boolean
ID.4
Item
american society of anesthesiologists state > iv,
boolean
ID.5
Item
presence of contraindications to local anaesthesia (known allergy to local anaesthetics, sepsis),
boolean
ID.6
Item
emergency surgery,
boolean
ID.7
Item
patients unlikely to be fully cooperative during the study,
boolean
ID.8
Item
psychiatric disorders, or
boolean
ID.9
Item
those abusing alcohol or drugs, and
boolean
ID.10
Item
participation in another study within the previous 30 days. moreover, patients with preoperative estimated values of creatinine clearance < 50 ml min-1 (cockroft and gault formula) or with glycosylated hemoglobin (a1c) level > 8 % or with type 1 diabetes mellitus (insulin therapy)
boolean