Evaluation of the Impact of dexmedetomidine as an adjunct for local infiltrations analgesia and ultrasound-based regional anaesthesia as pain medication in regard to patients' opioid need the first 48 hours after the total knee replacement operation.
Evaluation of the Impact of dexmedetomidine as an adjunct for local infiltrations analgesia and ultrasound-based regional anaesthesia as pain medication in regard to patients' opioid need the first 48 hours after the total knee replacement operation. Secondary objectives are: Pain assesment, Pain medication necessary, functionality of the prothesis, satisfaction, wellbeing, postoperative discomforts, complications (delirium, allergic reactions, cardiopulmonary decompensation), procedure specific time.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
50
Applied perineurally preoperatively ultrasound guided regional anesthesia
Applied in the wound intraoperatively from the orthopedics
Medical University Hospital LKH Graz
Graz, Austria
Need of opioid consumption in oral morphine equivalent
consumed opioids in mg of oral morphine equivalent
Time frame: 48 hours postoperatively
Pain assesment
Pain experienced by patients according to self-assesment according to NRS (Numeric rating scale) (minimum 0, maximum 10) (higher score means worse outcome)
Time frame: 5 days postoperatively or until discharge
Pain medication necessary
Need of opioid consumption in mg of oral morphine equivalent up to the 5th postoperative day
Time frame: 5 days postoperatively or until discharge
Functionality of the prothesis - OKS (Oxford Knee Score)
According to physical examination by the Oxford Knee Score (minimum 0, maximum 48) (higher score means better outcome)
Time frame: 5 days postoperatively or until discharge
Functionality of the prothesis- KOOS (Knee Injury and Osteoarthritis Outcome Score)
According to physical examination by the orthopedics score KOOS (minimum 0, maximum 100) (higher score means better outcome)
Time frame: 5 days postoperatively or until discharge
Functionality of the prothesis - WOMAC (Western Ontario and McMaster Universities Osteoarthritis Index)
According to physical examination by the orthopedics score WOMAC (minimum 0, maximum 96) (higher score means worse outcome)
Time frame: 5 days postoperatively or until discharge
Functionality of the prothesis- G-FJS (German Forgotten Joint Score)
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According to physical examination by the orthopedics score G-FJS (minimum 0, maximum 100) (higher score means better outcome)
Time frame: 5 days postoperatively or until discharge
Complications
Incidence of complications in total (e.g. delirium, allergic reactions, cardiopulmonary decompensation)
Time frame: 5 days postoperatively or until discharge
procedure specific time
time of the operation
Time frame: during surgery