Article (Scientific journals)
The FROSTBLOCK trial: Protocol for a randomized controlled trial of intra-articular corticosteroid injection with or without suprascapular nerve block in frozen shoulder.
Schiltz, Marc; Croes, Jonas; van Brabander, Lina et al.
2025 • In Trials, 26 (1), p. 383
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Keywords :
Adhesive capsulitis of the shoulder; Bursitis; Frozen shoulder; Intra-articular corticosteroid injection; Joint Diseases; Musculoskeletal diseases; Randomized controlled trial; Suprascapular nerve block,; Ultra-sound guided injection; Adrenal Cortex Hormones; Humans; Injections, Intra-Articular; Randomized Controlled Trials as Topic; Treatment Outcome; Pain Measurement; Range of Motion, Articular; Recovery of Function; Time Factors; Adult; Male; Female; Disability Evaluation; Bursitis/physiopathology; Bursitis/therapy; Bursitis/drug therapy; Bursitis/diagnosis; Nerve Block/methods; Nerve Block/adverse effects; Adrenal Cortex Hormones/administration & dosage; Adrenal Cortex Hormones/adverse effects; Shoulder Joint/physiopathology; Shoulder Joint/drug effects; Nerve Block; Shoulder Joint; Medicine (miscellaneous); Pharmacology (medical)
Abstract :
[en] [en] BACKGROUND: Frozen shoulder is a challenging musculoskeletal disorder, affecting between 2 and 5% of people, with a higher incidence among those with diabetes and thyroid issues. This condition can persist for years and can be very demanding for both patients and healthcare providers due to the intense pain and restricted shoulder movement. Literature shows that intra-articular corticoid injection (IACI) and suprascapular nerve block (SSNB) can improve pain and range of motion in these patients. The objective of this study is to investigate if there is any significant difference in pain reduction and functional recovery when treated with a combination of gleno-humeral IACI and SSNB compared to a gleno-humeral IACI paired with a placebo SSNB. METHODS: A two-arm, single-centre, randomized, parallel-group controlled trial will be conducted. Eligible patients will be randomly assigned (1:1 allocation) to long-acting SSNB + IACI and placebo SSNB + IACI. The primary endpoint is the mean change from baseline to 3 months in the Shoulder Pain and Disability Index (SPADI) score. Secondary outcomes will evaluate quality of life, functionality, pain (measured by a Numeric Pain Rating Scale), kinesiophobia, work status, health care service, and a safety assessment. The main paper will be based on the repeated measures collected up to 12 months from baseline. DISCUSSION: The aim of this study is to determine the additional effect on pain relief and functional improvement in frozen shoulder patients when a long-acting SSNB is administered, compared to a placebo SSNB, in combination with an intra-articular corticosteroid injection. Additionally, we will aim to determine which patients benefit most from these treatments. This study could lead to a change in the standard of care for patients in the painful phase of frozen shoulder. TRIAL REGISTRATION: ClinicalTrials.gov NCT06229964. Registered on 9 January 2024.
Disciplines :
Orthopedics, rehabilitation & sports medicine
Author, co-author :
Schiltz, Marc ;  Department of Physical and Rehabilitation Medicine, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, Brussels, Jette, 1090, Belgium. marc.schiltz@uzbrussel.be ; Department of Physical and Rehabilitation Medicine, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium. marc.schiltz@uzbrussel.be ; STIMULUS Consortium, Vrije Universiteit Brussel, Brussels, Belgium. marc.schiltz@uzbrussel.be
Croes, Jonas;  Department of Physical and Rehabilitation Medicine, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, Brussels, Jette, 1090, Belgium
van Brabander, Lina;  Department of Physical and Rehabilitation Medicine, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, Brussels, Jette, 1090, Belgium
Roggeman, Stijn;  Department of Physical and Rehabilitation Medicine, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, Brussels, Jette, 1090, Belgium
Goudman, Lisa;  STIMULUS Consortium, Vrije Universiteit Brussel, Brussels, Belgium ; Department of Neurosurgery, Universitair Ziekenhuis Brussel, Brussels, Jette, Belgium ; Center for Neurosciences, Vrije Universiteit Brussel, Brussels, Jette, Belgium ; Pain in Motion Research Group, Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education and Physiotherapy, Brussels, Jette, Belgium ; Research Foundation-Flanders, Brussels, Belgium
Moens, Maarten;  STIMULUS Consortium, Vrije Universiteit Brussel, Brussels, Belgium ; Department of Neurosurgery, Universitair Ziekenhuis Brussel, Brussels, Jette, Belgium ; Center for Neurosciences, Vrije Universiteit Brussel, Brussels, Jette, Belgium ; Pain in Motion Research Group, Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education and Physiotherapy, Brussels, Jette, Belgium ; Research Foundation-Flanders, Brussels, Belgium
Nijs, Jo;  Department of Physical and Rehabilitation Medicine, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, Brussels, Jette, 1090, Belgium ; Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
Pouliart, Nicole;  Department of Orthopaedics and Traumatology, Universitair Ziekenhuis Brussel, Brussels, Belgium ; Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
Forthomme, Bénédicte ;  Université de Liège - ULiège > Département des Sciences de l'activité physique et de la réadaptation > Rééducation du membre supérieur
Hatem, Samar M;  Department of Physical and Rehabilitation Medicine, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, Brussels, Jette, 1090, Belgium ; Department of Physical and Rehabilitation Medicine, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium ; STIMULUS Consortium, Vrije Universiteit Brussel, Brussels, Belgium
Language :
English
Title :
The FROSTBLOCK trial: Protocol for a randomized controlled trial of intra-articular corticosteroid injection with or without suprascapular nerve block in frozen shoulder.
Publication date :
29 September 2025
Journal title :
Trials
eISSN :
1745-6215
Publisher :
BioMed Central Ltd
Volume :
26
Issue :
1
Pages :
383
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
Marc Schiltz has received speaker fees from Heel and Ipsen. Lisa Goudman is a postdoctoral research fellow funded by the Research Foundation Flanders (FWO), Belgium (project number 12ZF622N). Maarten Moens has received speaker fees from Medtronic. STIMULUS received independent research grants from Medtronic. The authors declare no competing interests.This study is funded by the Department of Physical Medicine and Rehabilitation of Universitair Ziekenhuis Brussel. The funder does not have a role in the design of the study; the collection, analysis and interpretation of the data; or the writing of the manuscript.
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