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Completed

NCT Number: NCT06844630

Interscalene vs Infraspinatus-teres Minor (ITM) Interfascial Block in Shoulder Surgery

Postoperative pain is important following arthroscopic shoulder surgery. Postoperative effective pain treatment provides early mobilization and shorter hospital stay.Ultrasound (US)-guided brachial plexus blocks such as interscalen and supraclavicular block are usually performed. Interscalene brachial plexus block is one of the most preferred techniques among these.

Due to the phrenic nerve paralysis frequently seen in interscalene block, alternative diaphragm-sparing block techniques have emerged over time. One of these is the Infraspinatus teres minor interfascial block. Infraspinatus teres minor interfascial block can block both the suprascapular nerve and the axillary nerve, which are effective in the innervation of the shoulder, with a single-point injection.

The main aim of our study was to show that there is no difference between interscalene block and infraspinatus-teres-minor interfascial block in terms of their effects on postoperative analgesia in patients undergoing arthroscopic shoulder surgery.

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Key information

Conditions

Shoulder Pain Arthralgia Joint Diseases Musculoskeletal Diseases Neurologic Manifestations Pain Pain, Postoperative Pathologic Processes Pathological Conditions, Signs and Symptoms Postoperative Complications Signs and Symptoms Surgical Procedure, Unspecified

Age range

18 year–75 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Samsun University

Samsun, 55090, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • American Society of Anesthesiologists (ASA) classification I-II-III
  • Scheduled for arthroscopic shoulder surgery under general anesthesia

Exclusion criteria

  • history of bleeding diathesis
  • receiving anticoagulant treatment
  • infection of the skin at the site of the needle puncture
  • pregnancy or lactation
  • patients who do not accept the procedure
  • Allergy to local anesthetics
  • Chronic pain syndromes requiring opioid intake

Treatment and study plan

Preoperative block application (İntersclane Block)

Other

Before surgery, patients will receive a unilateral interscalene block under ultrasound guidance.

Preoperative block application (Infraspinatus-teres minor interfascial block)

Other

Before surgery, patients will receive a unilateral infraspinatus-teres minor interfascial block under ultrasound guidance.

Primary outcomes

  1. 24 hours opioid consumption

    Time frame: Time Frame: up to 24 hours

    morphine consumptions via patient controlled analgesia device for both group will be recorded

Secondary outcomes

  1. Sensory and Motor block score

    Time frame: 30 minutes post injection

    Sensorimotor block assessed every 5 minutes until 30 minutes using a 8-point composite. Block level will be evaluated between 0-8 points score

  2. Numeric rating scale for postoperative pain intensity

    Time frame: up to 24 hours (Will be evaluated at 1, 3, 6, 12, 18, 24 hours)

    Evaluated with a Numerical rating scale (NRS) from 0 to 10. (0=no pain; 10=worst imaginable pain)

  3. Quality of Recovery - 15 score

    Time frame: Postoperative 24th hour

    The impact of surgical and anesthetic interventions on perioperative quality of life and ability to resume routine life activities will be assessed using the Quality of Recovery (QoR) tool. Each question is scored between 0 and 10. The survey result varies between 0-150 points based on the answers given by the patients. Higher scores indicate better recovery.

Sponsors and collaborators

Lead sponsor

Kadem Koc

Other

Registry information

Official study title

Comparison of Postoperative Analgesic Efficacy Between the Interscalene Block and Infraspinatus-Teres Minor Interfascial Blocks in Patients Undergoing Arthroscopic Shoulder Surgery

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Feb 25, 2025
Registry last updated
Dec 29, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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