Retrospective Analysis of Pain After Nerve Block in Surgical Patients

Mass General Brigham

Status: Active, not recruiting

Conditions: Regional Anesthesia Morbidity; Acute Pain; Knee Osteoarthritis

Treatments: Other: Educational intervention

Study type: Observational

Funder types: Other

Identifiers

NCT06042322

2023P000514

Details and patient eligibility

About

This is a retrospective study looking at patients who received a nerve block for surgery and assessing pain after the nerve block resolves, with or without an educational intervention, over two periods of time.

Full description

Regional anesthesia (RA) is a vital tool that can serve as the primary anesthetic or as part of a multimodal perioperative pain regimen. RA is strongly associated with decreased acute and persistent pain and opioid consumption postoperatively. However, some patients experience an acute worsening of pain into the severe range around the time of RA resolution, also known as "rebound pain" (RP). The incidence of RP has been reported as high as 40-50% after a single shot nerve block for patients undergoing ambulatory surgery.

This retrospective study aims to look at patients who received a nerve block for surgery and assessing pain after the nerve block resolves in the presence and absence of certain interventions, such as a multidisciplinary educational intervention.

The investigators will assess patients who received a primary total knee arthroplasty who received a single shot adductor canal nerve block, received pericapsular injection by the surgeon, and had a length of stay > 16 hours.

Enrollment: 166 estimated patients

Sex: All

Volunteers: No Healthy Volunteers

Inclusion criteria

• primary total knee arthroplasty
• received an adductor canal nerve block
• received pericapsular injection by surgeon intraoperatively
• admitted for overnight stay and > 16 hours post-nerve block

Exclusion criteria

• age < 18
• prior total knee arthroplasty on ipsilateral knee

Trial design

166 participants in 2 patient groups

TKA with nerve block no intervention

Description:

Patients who received a single shot adductor canal nerve block prior to total knee arthroplasty surgery January 2017-June 2018

TKA with nerve block with intervention

Description:

Patients who received a single shot adductor canal nerve block prior to total knee arthroplasty surgery during March 2019-March 2020, and received an educational intervention

Treatment:

Other: Educational intervention