Stump and phantom pain after amputation are common, but the responsible mechanisms are still not clarified. It has been suggested that phantom limb pain can be reduced by regional anaesthesia and in several recent studies, pain was reduced following intrathecal and intraforaminal blocks. In this study, the investigators want to investigate if spontaneous and evoked pain in amputees will be relieved by regional nerve blocks involving the damaged nerves.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
DOUBLE
Enrollment
12
Danish Pain Research Center, Aarhus University Hospital
Aarhus, Denmark
Reduction in spontaneous pain on a Numeric Rating Scale (NRS: 0-10, 0 = no pain, 10 = worst possible pain)
The patient will be asked about spontaneous pain, including stump and phantom pain on a Numerical Rating Scale (NRS: 0-10, 0 = no pain, 10 = worst pain).
Time frame: From 0 minutes until 120 minutes after injection
Reduction in evoked pain on a Numerical Rating Scale (NRS: 0-10, 0 = no pain, 10 = worst possible pain).
The patient will be asked about evoked pain on a Numerical Rating Scale (NRS: 0-10, 0 = no pain, 10 = worst pain). Evoked pain is triggered by a SOMEDIC brush, thermo rolls (20 degrees Celcius and 40 degrees Celcius) and pinprick with a von Frey filament (60 g).
Time frame: From 0 minutes until 120 minutes after injection
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