Postoperative infusion pump versus nerve block for pain after knee or shoulder surgery

Continuous Infusion Pump Versus Single Shot Peripheral Block for Pain Management After Same-day Orthopaedic Surgery

Phase 4 Interventional Rutgers, The State University of New Jersey · NCT07349810

This study will try a postoperative local anesthetic infusion pump versus a preoperative nerve block to see which reduces pain for adults having ACL, shoulder labrum/rotator cuff, or certain knee surgeries.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment80 (estimated)
Ages18 Years and up
SexAll
SponsorRutgers, The State University of New Jersey Academic / other
Locations1 site (Somerset, New Jersey)
Trial IDNCT07349810 on ClinicalTrials.gov

What this trial studies

This is a pragmatic, prospective cluster-randomized trial that assigns treatment approach by sequential two-week time clusters. Adults undergoing ACL reconstruction, specified shoulder labrum or rotator cuff procedures, arthroscopic rotator cuff repair, patellar realignment, or selected open knee arthrotomies at the University Center for Ambulatory Surgery in Somerset, NJ, will be screened and consented. Interventions include continuous infusion via an ambIT pump using bupivacaine or ropivacaine and use of liposomal bupivacaine (Exparel) where applicable, and pain will be measured using visual analog or numeric pain scores as the primary outcome. The trial compares postoperative infusion pump versus preoperative peripheral nerve block to determine which provides better postoperative analgesia.

Who should consider this trial

Good fit: Adults aged 18 or older scheduled for the listed ACL, shoulder, or qualifying knee procedures at the study site are the intended participants.

Not a fit: Patients younger than 18, with BMI over 40, ASA class 4 or greater, chronic opioid use, allergy to bupivacaine/ropivacaine, coagulation disorders, or other listed exclusions are unlikely to benefit or will be excluded.

Why it matters

Potential benefit: If successful, it could reduce postoperative pain and opioid use after common knee and shoulder surgeries.

How similar studies have performed: Prior research on continuous local anesthetic infusions and liposomal bupivacaine in orthopedic surgeries has produced mixed results, with some studies showing reduced pain and opioid use but inconsistent long-term benefits.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age 18 years or older
* ACL reconstruction
* Open shoulder labrum or rotator cuff surgery
* Arthroscopic rotator cuff repair
* Proximal or distal patellar realignment surgery
* Open knee arthrotomy cases - Inside out meniscus repair, OCA, MAT

Exclusion Criteria:

* Age under 18 years
* Body mass index of greater than 40 kg/m2
* American Society of Anesthesiologist class 4 physical status or greater
* History of drug or alcohol abuse
* Chronic opioid use/pain management doctor
* Allergy to bupivacaine, ropivacaine or pharmacologic analogs
* Any coagulation disorders
* Existing nerve injury
* Severe bronchopulmonary disease
* Pregnant patients

Where this trial is running

Somerset, New Jersey

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 Post Operative Pain
Last reviewed 2026-06-13 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.