CompletedPhase 4

Block and Periarticular Injection Study

United States174 participantsStarted 2024-03-04

Plain-language summary

The purpose of the study is to compare two types of perioperative analgesic modalities, adductor canal block plus interspace between popliteal artery and capsule of the knee (IPACK) block and periarticular injection versus periarticular injection alone, to determine their relative efficacies with regard to pain relief and functional outcomes in the early postoperative period following primary total knee arthroplasty.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Planning to undergo Unilateral primary total knee arthroplasty. * 18 and up * Willing to sign informed consent * Willing to return for all follow-up visits * Smartphone or tablet device capable of running the FocusMotion platform Exclusion Criteria: * BMI \> 45 * Preexisting functionally limiting neurologic disorders * Hepatic or renal insufficiency * History of unprovoked venous thromboembolism * Inability to complete baseline functional testing * Chronic opioid or gabapentin and pregabalin use (chronic defined as use \>5 days per week prior to the surgical procedure) * Allergy or intolerance to trial medications * Planned admission to a postoperative rehabilitation facility * Planned general anesthesia * Receiving workers compensation or disability payments

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Mean Visual Analog Scale (VAS) Pain Score for 2 Weeks Postoperatively

Timeframe: at 2 weeks

Trial details

NCT IDNCT06410612

SponsorWashington University School of Medicine

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2025-05-12

Results submitted2026-02-20

View on ClinicalTrials.gov More Pain, Postoperative trials