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

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

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

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.

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