MedTrace Logo

PENG vs PHPB for Hip Arthroplasty Analgesia

NCT07263932 · Status: ACTIVE_NOT_RECRUITING · Type: OBSERVATIONAL · Enrollment: 127

Last updated 2026-05-06

No results posted yet for this study

Summary

Total hip arthroplasty (THA) is a commonly performed surgical procedure, and its incidence continues to rise with the aging population. Effective postoperative analgesia facilitates early mobilization and accelerates recovery. The pericapsular nerve group (PENG) block provides analgesia to the anterior hip capsule by targeting the articular branches of the femoral, obturator, and accessory obturator nerves. However, due to the contribution of sacral plexus-derived nerves (quadratus femoris, superior gluteal, and inferior gluteal nerves) to posterior hip pain, anterior blocks alone may be insufficient.

This prospective study aims to compare the efficacy of preoperatively administered PENG block alone versus the combination of PENG and posterior hip pericapsular block (PHPB) in postoperative pain control after total hip arthroplasty. The primary outcome is postoperative pain intensity assessed by the Numerical Rating Scale (NRS). Secondary outcomes include the Quality of Recovery score (QoR-15), opioid consumption, manual muscle testing (MMT) results, time to mobilization, and block-related complications.

Conditions

  • PENG Block
  • Hip Arthroplasty, Total
  • QoR-15
  • Numeric Rating Scale

Interventions

PROCEDURE

PENG Block and Posterior Hip Pericapsular Block

Patients in this group will also undergo elective total hip arthroplasty (THA) under spinal anesthesia.A preoperative Pericapsular Nerve Group (PENG) block will be performed under ultrasound guidance using 20 mL of 0.25% bupivacaine. The injection will be administered between the psoas tendon and the iliac bone to block the articular branches of the femoral, obturator, and accessory obturator nerves, providing analgesia to the anterior hip capsule. In addition to the PENG block, a Posterior Hip Pericapsular Block (PHPB) will be performed under ultrasound guidance using 20 mL of 0.25% bupivacaine. The local anesthetic will be injected between the piriformis muscle and the ischiofemoral ligament to target the posterior articular branches of the quadratus femoris, superior gluteal, and inferior gluteal nerves. The combined PENG + PHPB approach aims to provide comprehensive analgesia of both the anterior and posterior hip capsule while preserving motor function.

PROCEDURE

PENG Block

Patients in this group will also undergo elective total hip arthroplasty (THA) under spinal anesthesia.A preoperative Pericapsular Nerve Group (PENG) block will be performed under ultrasound guidance using 20 mL of 0.25% bupivacaine. The injection will be administered between the psoas tendon and the iliac bone to block the articular branches of the femoral, obturator, and accessory obturator nerves, providing analgesia to the anterior hip capsule.

Sponsors & Collaborators

  • Ankara City Hospital Bilkent

    lead OTHER

Principal Investigators

  • Abdulkadir But, Professor · Ankara Bilkent City Hospital Departmant of Anesthesiology and Reanimation,Ankara,Çankaya

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-12-01
Primary Completion
2026-04-15
Completion
2026-07-01

Countries

  • Turkey (Türkiye)

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07263932 on ClinicalTrials.gov