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Ultrasound-Guided PENG Block for Chronic Shoulder Pain

NCT07607691 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 45

Last updated 2026-05-26

No results posted yet for this study

Summary

The purpose of this prospective, observational study is to evaluate the clinical and functional outcomes of ultrasound-guided Pericapsular Nerve Group (PENG) block in patients suffering from chronic shoulder pain. Chronic shoulder pain is a highly prevalent musculoskeletal problem that significantly restricts daily activities and diminishes the patient's quality of life. While conservative treatments and various interventional injections are widely used, long-term efficacy can be limited, and systemic side effects may occur. The shoulder PENG block is a novel regional analgesia technique that specifically targets the articular (sensory) branches of the nerves innervating the shoulder joint capsule without affecting the motor branches. In this single-center study, a total of 45 eligible adult patients with chronic shoulder pain who did not respond to conservative medical treatments will receive an ultrasound-guided PENG block as part of their routine clinical care. The procedure will be performed under sterile conditions using a combination of local anesthetic (lidocaine) and dexamethasone. Patient pain levels will be assessed using the Numerical Rating Scale (NRS), shoulder disability and functional status will be measured using the Shoulder Pain and Disability Index (SPADI), and overall patient satisfaction will be evaluated using the Global Perceived Effect (GPE) score. All parameters will be documented at baseline (before the procedure) and at follow-up visits on the 1st week, 4th week (1 month), and 3rd month post-procedure. The investigators aim to determine the efficacy, duration of effect, and safety profile of this intervention.

Conditions

  • Chronic Shoulder Pain
  • Pericapsular Nerve Group Block (PENG Block)
  • Frozen Shoulder
  • Bursitis
  • Rotator Cuff Disorders

Interventions

DRUG

Lidocaine and Dexamethasone for PENG Block

An ultrasound-guided Pericapsular Nerve Group (PENG) block is administered to target the articular (sensory) branches of the nerves innervating the shoulder joint capsule (suprascapular, axillary, and lateral pectoral nerves) without affecting the motor branches. The intervention is performed under strict sterile conditions with the patient in the supine position. The affected shoulder is placed in abduction and external rotation. A high-frequency ultrasound transducer is positioned parallel to the clavicle to visualize the anatomical structures. Under direct ultrasound guidance, a block needle is advanced beneath the subscapularis muscle. After confirming the correct needle positioning and ensuring no intravascular placement, a therapeutic mixture of 5 mL of 2% lidocaine and 8 mg of dexamethasone is injected into the periarticular nerve endpoints.

Sponsors & Collaborators

  • Ankara City Hospital Bilkent

    lead OTHER

Principal Investigators

  • ali çoştu, md · Ankara City Hospital Bilkent

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-06-01
Primary Completion
2026-10-01
Completion
2026-10-15

Countries

  • Turkey (Türkiye)

Study Locations

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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 NCT07607691 on ClinicalTrials.gov