The Effect of Popliteal Plexus Block on Pain After Total Knee Arthroplasty

Regionshospitalet Silkeborg

Status and phase: Completed; Phase 4

Conditions: Popliteal Plexus Block; Total Knee Arthroplasty

Treatments: Drug: Bupivacaine-epinephrine

Study type: Interventional

Funder types: Other

Identifiers

NCT03198403

2017-001644-35

Details and patient eligibility

About

The study aims to investigate the effect of the Popliteal plexus block (PPB) on postoperative pain after total knee arthroplasty

Full 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.

Enrollment: 17 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

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

Trial design

Primary purpose: Treatment

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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17 participants in 2 patient groups

Popliteal plexus block

Experimental group

Description:

Patients with an FTB, reporting postoperative pain (NRS \> 3) will have a popliteal plexus block

Treatment:

Drug: Bupivacaine-epinephrine

No intervention

No Intervention group

Description:

Patients with postoperative pain NRS \< or = 3