Comparison of the Effects Suprascapular Nerve Block and Intra-articular Shoulder Injection

June 30, 2026 updated by: Ayse Gulsen Dogan, Hitit University

Comparison of the Effects of Ultrasonography-guided Suprascapular Nerve Block and Intra-articular Shoulder Injection on Pain, Functional Status and Range of Motion in Patients With Adhesive Capsulitis; Randomized, Controlled Trial

Objectives: In this study, we aimed to compare the efficacy of ultrasonography-guided suprascapular nerve block and intra-articular shoulder injection treatment in terms of joint range of motion, pain and functional status in patients with adhesive capsulitis (AC).

Patients and Methods: 60 patients AC were included in our study. The patients were randomized into two groups according to the sealed envelope method. In the evaluation of the patients before the injection, age, gender, body mass index (BMI), occupation, education, duration of complaint, symptomatic side and dominant hand information were recorded. In the first group, 2 ml of 40 mg triamcinolone acetonide and 4 ml of 1% lidocaine injection were mixed with the posterior approach method into the shoulder joint under the guidance of ultrasonography (USG). The second group underwent suprascapular nerve block (SSNB) injection with 2 ml of 40 mg triamcinolone acetonide and 4 ml of 1% lidocaine under USG guidance. Shoulder range of motion (ROM), visual analog scale (VAS) scores and Shoulder Pain and Disability Index (SPADI) scores were compared before the injection, on the tenth day after the injection and at the third month after the injection.

Conclusion: As a result of our study, although it was observed that both methods provided improvement in the treatment process, the significant improvement in the SSNB group indicates that it is a more reliable treatment method in AC treatment.

Study Overview

Detailed Description

Sixty patients AC who applied to our Orthopedics-Traumatology and Physical Medicine-Rehabilitation Outpatient Clinic were included in our study. The study was approved by the Hitit University Clinical Research Ethics Committee (Decision number:2023-56). A well-informed written consent was obtained from all participants according to the principles of the Declaration of Helsinki. Patients with an age range of 18-65 years, adapting to the treatment program to be applied, diagnosed with unilateral stage 2-3 AC, no shoulder trauma in the last 3 months, no shoulder injections, no bleeding disorder, no history of malignancy, inflammatory disease and stroke were included in the study. The patients were randomized into two groups according to the sealed envelope method. In the evaluation of the patients before the injection, age, gender, body mass index (BMI), occupation, education, duration of complaint, symptomatic side and dominant hand information were recorded. Injections were made to the patients by the physiatrist and anesthetist researcher under the guidance of Logiq V2 portable USG device. In the first group, 2 ml of 40 mg triamcinolone acetonide and 4 ml of 1% lidocaine injection were mixed with the posterior approach method into the shoulder joint under the guidance of USG. The second group underwent suprascapular nerve block injection with 2 ml of 40 mg triamcinolone acetonide and 4 ml of 1% lidocaine under USG guidance. In addition, pendulum and ladder-finger exercises were given to both groups as a home exercise program. Shoulder range of motion (ROM), visual analog scale (VAS) scores and Shoulder Pain and Disability Index (SPADI) scores were compared before the injection, on the tenth day after the injection and at the third month after the injection.

Study Type

Interventional

Enrollment (Actual)

60

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

unilateral stage 2-3 AC

  • no shoulder trauma in the last 3 months
  • no shoulder injections
  • no bleeding disorder
  • no history of malignancy
  • no history of inflammatory disease

Exlusion Criteria:

  • malignancy
  • inflammatory disease

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Single Group Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: suprascapular verve block
2 ml of 40 mg triamcinolone acetonide and 4 ml of 1% lidocaine
ultrasonography-guided suprascapular nerve block and intra-articular shoulder injection
Other Names:
  • intra-articular shoulder injection
Experimental: intraarticular shoulder injection
2 ml of 40 mg triamcinolone acetonide and 4 ml of 1% lidocaine
ultrasonography-guided suprascapular nerve block and intra-articular shoulder injection
Other Names:
  • intra-articular shoulder injection

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Changes from baseline in pain on The Shoulder Pain and Disability Index (SPADI) at the tenth day after the injection
Time Frame: baseline and on the tenth day after the injection
SPADI is a valid and reliable questionnaire used in shoulder disorders. Possible scores range from 0 (no pain) to 100 (severe shoulder pain)= Changes tenth day after the injection-baseline
baseline and on the tenth day after the injection
The effectiveness of suprascapular nerve block on pain is higher than intra-articular
Time Frame: between before treatment and on the tenth day after the injection
Shoulder Pain and Disability Index
between before treatment and on the tenth day after the injection

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 21, 2023

Primary Completion (Actual)

April 24, 2023

Study Completion (Actual)

May 24, 2023

Study Registration Dates

First Submitted

June 1, 2023

First Submitted That Met QC Criteria

June 11, 2023

First Posted (Actual)

June 18, 2023

Study Record Updates

Last Update Posted (Actual)

July 2, 2026

Last Update Submitted That Met QC Criteria

June 30, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • 2023-56
  • Deniz İpek (Other Identifier: Hitit University)
  • Mehmet Yalvaç (Other Identifier: Hitit University)
  • Murat Doğan (Other Identifier: Hitit University)
  • Abdulrahim Dündar (Other Identifier: Hitit University)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Comparison of the effects of ultrasonography-guided suprascapular nerve block and intra-articular shoulder injection on pain, functional status and range of motion in patients with adhesive capsulitis; randomized, controlled trial

IPD Sharing Time Frame

21/01/2023-24/05/2023

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF
  • ANALYTIC_CODE
  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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