Conditions: Postoperative Analgesia Medial Unicompartmental Knee Arthroplasty
Keywords: Partial knee replacement
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 150
Healthy volunteers: no

Brief summary:
This study will evaluate the affects of a single injection ultrasound-guided adductor canal block for patients undergoing robotic-assisted (MAKOplasty) medial UKA (unicompartmental knee arthroplasty). Specifically, this study will compare the adequacy of postoperative analgesia provided by the adductor canal block with that provided by single injection lumbar plexus blockade. The working hypothesis is that the analgesia provided by the adductor canal block will be equivalent to the analgesia provided by the lumbar plexus block. The primary outcome will be a comparison of verbal numerical pain scores at rest and with movement over the first 24 hours following nerve blockade.

Detailed description:

Arms:
arm 1: Patients in this arm will receive an adductor canal block prior to undergoing a medial compartment knee arthroplasty. arm 2: Patients in this arm will receive a lumbar plexus block prior to undergoing a medial compartment knee arthroplasty.

Interventions: intervention 1: Adductor canal block intervention 2: Lumbar plexus block
Intervention descriptions: intervention 1: None intervention 2: None

Protocol document: