The Effect of Popliteal Plexus Block on Postoperative Pain After Total Knee Arthroplasty
Trial Snapshot
- Phase
- Phase 4
- Status
- Completed
- Sponsor
- Regionshospitalet Silkeborg
- Enrollment
- 17
- Locations
- 1
- Primary Endpoint
- The percentage of patients with postoperative pain NRS
Study Overview
Brief Summary
The study aims to investigate the effect of the Popliteal plexus block (PPB) on postoperative pain after total knee arthroplasty
Detailed Description
Cadaver dissection studies have shown a spread of dye to the popliteal fossa and colored the popliteal plexus by injecting in the distal part of the adductor Canal.
The popliteal plexus is formed by contribution from the tibial and the obturator nerves.
Investigators hypothesized that a PPB may reduce postoperative pain after total knee arthroplasty.
Study Design
- Study Type
- Interventional
- Allocation
- Non Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Treatment
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •patients undergoing total knee arthroplasty in spinal anesthesia
- •age > or = 18 years
- •American Society of Anesthesiologists (ASA) status I-III
- •Informed consent
Exclusion Criteria
- •Patients unable to cooperate
- •Patients not able to speak Danish
- •Pregnancy
- •Contraindication towards ana Medical product used in the study
- •Preoperatively reduced sensation on the medial and lateral part of the lower leg
- •Patients with diabetic requiring Medical treatment
- •Preoperative daily intake of opioids
Arms & Interventions
Popliteal plexus block
Patients with an FTB, reporting postoperative pain (NRS > 3) will have a popliteal plexus block
Intervention: Bupivacaine-epinephrine (Drug)
Outcomes
Primary Outcomes
The percentage of patients with postoperative pain NRS
Time Frame: 0 - 60 minutes
Evaluated as the percentage of patients with postoperative pain NRS \>3, dropping in pain score to NRS = or \< 3 after the PPB
Secondary Outcomes
- Percentage of patients having a femoral triangle block(FTB) reporting NRS > 3(Pain scores every 15 minutes (from end injection FTB to NRS>3 or 3 hours after full sensation of the leg))
- Turn off time of spinal anesthesia(Time from arrival in PACU and during maximum 6 hours)
- The effect of the PPB on cutaneous sensation(NRS every 5 minutes after PPB (From 0 - 60 minutes after PPB))
- The effect of the PPB on muscle strength of the foot(Baseline and 1 hour after PPB)
- Onset time of PPB(NRS every 5 minutes after PPB (From 0 - 60 minutes after PPB))
- Correlation between normal cutaneous sensation and developing of pain(From arrival in PACU and during maximum 6 hours)
Investigators
Charlotte Runge
Consultant anesthetist, Principal investigator
Regionshospitalet Silkeborg