Breathing exercises for pain relief after knee surgery

Diaphragmatic Breathing Exercises As An Analgesia Adjunct in Total Knee Arthroplasty Patients in the Perioperative Period

Observational University of Southern California · NCT04336579

This study tests if breathing exercises can help people manage pain better after knee surgery compared to those who didn't use these exercises.

Quick facts

Study typeObservational
Enrollment50 (estimated)
Ages50 Years to 90 Years
SexAll
SponsorUniversity of Southern California Academic / other
Locations1 site (Los Angeles, California)
Trial IDNCT04336579 on ClinicalTrials.gov

What this trial studies

This observational study focuses on patients undergoing total knee arthroplasty at Keck USC Hospital. Participants will learn diaphragmatic breathing exercises preoperatively and in the recovery room to help manage postoperative pain. Pain levels will be assessed using a visual analog scale (VAS), and the study will compare these scores and opioid usage between the breathing exercise group and a control group of prior patients. The goal is to evaluate the effectiveness of this non-pharmacological approach in improving recovery outcomes.

Who should consider this trial

Good fit: Ideal candidates are patients undergoing total knee arthroplasty with a continuous peripheral nerve block catheter.

Not a fit: Patients who cannot perform diaphragmatic breathing exercises or are pregnant will not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could reduce postoperative pain and opioid consumption for knee surgery patients.

How similar studies have performed: While this approach is relatively novel, similar non-pharmacological interventions have shown promise in managing postoperative pain in other settings.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients (participants) undergoing total knee arthroplasty with a continuous peripheral nerve block catheter

Exclusion Criteria:

* Inability to perform or learn diaphragmatic breathing exercises or do not wish to participate in diaphragmatic breathing or study protocol
* Pregnant patients
* Patients without continuous peripheral nerve block catheter

Where this trial is running

Los Angeles, California

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Anesthesia and Analgesia
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.