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Anterior and Posterior Approaches of Suprascapular Nerve Block

Comparison of Anterior and Posterior Approaches of Suprascapular Nerve Block in Arthroscopic Shoulder Surgery

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05442814
Enrollment
60
Registered
2022-07-05
Start date
2022-07-11
Completion date
2023-07-15
Last updated
2026-02-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anterior Suprascapular Nerve Block, Diaphragmatic Paralysis, Postoperative Pain, Shoulder Pain, Subomohyoid Suprascapular Nerve Block, Suprascapular Nerve Block

Keywords

Shoulder pain, Nerve Block, Diaphragmatic paralysis, Postoperative pain, Suprascapular block, Subomohyoid suprascapular block, Posterior Suprascapular block, Anterior Suprascapular block

Brief summary

Suprascapular nerve is a mixed motor and sensory peripheral nerve arising from the superior trunk of brachial plexus.The suprascapular nerve runs through the posterior triangle of the neck, anterior of the trapezius muscle and dorsal of the omohyoid muscle, in direction of the scapula. Suprascapular nerve block is performed by anterior and posterior approach. Posterior approach of the suprascapular nerve block has been shown for many years to provide effective analgesia in the shoulder region for the chronic and acute pain. There are studies showing that suprascapular block with anterior approach provides effective analgesia in shoulder arthroscopy. The aim of our study was to compare anterior and posterior approaches of suprascapular nerve block in terms of analgesic efficacy and patient safety.

Detailed description

This study is a prospective randomized clinical trial will be conducted between July 2022 and June 2023.Participant will divide into two groups as participant who underwent suprascapular nerve block with the anterior approach and participant who underwent suprascapular nerve block with the posterior approach. Bupivacaine 5 ml %0.5 will be injected both group. Diaphragmatic thickness fraction will be evaluated with ultrasound left and right 7.-8. subcostal anterior axillary border with the participant with the semi-sitting position. Diaphragmatic thickness fraction will measure before the block and after 30 minutes the surgery. Participants will administered intravenous morphine patient controlled analgesia for 24 hours stay. The amount of opioid analgesics given in both groups will be determined (in mg). Postoperative 4th, 6th, 12th, 24th hour Visual Analogue Scale scores of the participants and opioid consumptions until that hours will be evaluated. An addition participant will be determined according to the surgery.

Interventions

PROCEDUREPosterior suprascapular block

Diaphragmatic thickness fraction will be evaluated in the participant underwent suprascapular block performed by posterior approach

Diaphragmatic thickness fraction will be evaluated in the participant underwent suprascapular block performed by anterior approach

Sponsors

Istanbul Medeniyet University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Masking description

sealed envelope

Intervention model description

participant with anterior suprascapular block ,group 1 participant with posterior suprascapular block, group 2

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Patient who accepts to study protocol * Scheduled for shoulder surgery * Between the ages of 18 and 80

Exclusion criteria

* Patients with coagulopathy * Patients with a history of local anesthetic drug allergy and toxicity * Patients with advanced organ failure * Patients with mental retardation * Patients with infection present at the injection site * Patients with diaphragm paralysis * Pregnant patients

Design outcomes

Primary

MeasureTime frameDescription
Postoperative pain at the postoperatively 30 Minutes, 4 Hours, 6Hours, 12Hours, 24HoursUp to 24 hours post-operativeVisual analogue scale (0-10): 0= no pain, 10= the worst pain ever feel.

Secondary

MeasureTime frameDescription
Diaphragmatic movementsBaseline (Before the block performed) and 30 minutes after the end of surgeryRatio of diaphragm thickness in end-inspiration and end-expiration measured by ultrasonography
Peroperatively opioid analgesic consumption (Remifentanil)up to postoperative 0 minutesmilligram
Postoperative opioid analgesic consumption (morphine)postoperative 30 minutesmilligram
Postoperative pain at postoperative 4 Hoursat postoperative 4 HoursVisual analogue scale (0-10): 0= no pain, 10= the worst pain ever feel.
Postoperative pain at postoperative 6 Hoursat postoperative 6 HoursVisual analogue scale (0-10): 0= no pain, 10= the worst pain ever feel.
Postoperative pain at postoperative 12 Hoursat postoperative 12 HoursVisual analogue scale (0-10): 0= no pain, 10= the worst pain ever feel.
Postoperative pain at postoperative 24 Hoursat postoperative 24 HoursVisual analog scale (0-10): 0= no pain, 10= the worst pain ever feel.

Countries

Turkey (Türkiye)

Contacts

PRINCIPAL_INVESTIGATOREbru Girgin Dinç, MD

İstanbul Medeniyet University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 23, 2026