PENG Block added to spinal anesthesia for hip replacement in older adults
Official title: Effect of Pericapsular Nerve Group (PENG) Block Added to Spinal Anesthesia on Postoperative Delirium in Older Adults Undergoing Primary Total Hip Arthroplasty: A Prospective, Randomized, Assessor-Blinded Controlled Trial
Run by Poznan University of Medical Sciences · NCT07449468 · Data updated 2026-11-12
This study tests whether adding a PENG block to spinal anesthesia can lower delirium after hip replacement in people 75 and older.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 75 Years to 100 Years |
| Sex | All |
| Enrollment | 180 (estimated) |
| Sponsor | Poznan University of Medical Sciences Academic / other |
| Locations | 1 site (Poznan) |
| Status | Recruiting |
| Started | March 1, 2026 |
| Main results expected | May 1, 2027 |
| Study ends | June 30, 2027 |
| Registry record updated | May 22, 2026 |
| Trial ID | NCT07449468 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Candidates are adults aged 75 or older scheduled for elective primary total hip arthroplasty under spinal anesthesia, with ASA II-III and ability to consent and complete delirium assessments.
✕Probably not a fit
Patients with pre-existing delirium, severe dementia, or contraindications to regional anesthesia may not benefit and could be excluded from the intervention.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This randomized, parallel-group trial compares ultrasound-guided Pericapsular Nerve Group (PENG) block plus spinal anesthesia versus a sham block with local anesthetic to see if delirium within 72 hours after primary total hip arthroplasty is reduced in adults aged 75 and older. Participants are adults with ASA II-III undergoing elective surgery and will be assigned 1:1 to receive the PENG block or sham block. The study focuses on opioid-sparing analgesia and improved mobilization as potential mechanisms to decrease delirium risk. Outcomes include incidence of postoperative delirium and related recovery measures in the early postoperative period.
Why it matters
Potential benefit: If successful, the approach could reduce delirium and improve recovery after hip replacement by better pain control and lower opioid use.
How similar studies have gone: There is emerging but not conclusive evidence that regional blocks can reduce delirium by improving analgesia and reducing opioids, making this approach exploratory.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age ≥ 75 years * Scheduled for elective primary total hip arthroplasty * Planned spinal anesthesia * ASA physical status II-III * Ability to provide written informed consent * Ability to communicate and reliably assess pain using the Numeric Rating Scale (NRS) * Expected postoperative hospitalization ≥ 72 hours Exclusion Criteria: * Pre-existing delirium, acute psychosis, or active major psychiatric disorder * Documented severe dementia or inability to provide informed consent * Severe hearing or visual impairment preventing reliable CAM assessment * Contraindications to regional anesthesia (e.g., coagulopathy according to institutional standards, infection at the injection site, allergy to local anesthetics) * Pre-existing neurological deficits of the operative lower limb are interfering with assessment * Chronic opioid use (\>30 mg morphine milligram equivalents per day for \>2 weeks prior to surgery) * Severe renal impairment (eGFR \<30 mL/min/1.73 m²) * Severe hepatic insufficiency * Participation in another interventional clinical trial within 30 days * Any other condition that, in the investigator's judgment, may interfere with study participation or protocol adherence
Where it's running
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Poznan University of Medical Sciences
Poznan, Poland Recruiting
Study contacts
- Study coordinator: Malgorzata Reysner, MD PhD
- Email: mreysner@ump.edu.pl
- Phone: +48 61 8320122
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In people aged 60 and older undergoing total hip arthroplasty, this study tests whether three anesthesia approaches provide better pain control and fewer side effects: spinal with intrathecal morphine, spinal with a PENG block, or spinal with a PENG block plus dexamethasone.
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.