Comparison of the spread pattern of medial-to-lateral and lateral-to-medial rotator interval injections: A cadaveric study.

Benjamin J Kozlowski, John Tran, Philip W H Peng, Anne M R Agur, Nimish Mittal

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Article in Interventional pain medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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3 · Its place in the literature

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1 citing paper in PubMed.

Assessing injectate spread in ultrasound-guided capsular hydro dilatation for adhesive capsulitis: A comparative MRI study of anterior rotator interval vs. posterior glenohumeral joint approaches.Interventional pain medicine · 2025
Article

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5 · Who and what money

Authors and funding

5 authors.

Benjamin J KozlowskiTemerty Faculty of Medicine, Division of Anatomy, Department of Surgery, 1 Kings College Circle, University of Toronto, Toronto, Ontario, M5S 1A8, Canada.

John TranTemerty Faculty of Medicine, Division of Anatomy, Department of Surgery, 1 Kings College Circle, University of Toronto, Toronto, Ontario, M5S 1A8, Canada.

Philip W H PengDepartment of Anesthesiology and Pain Management, Toronto Western Hospital, University of Toronto, 399 Bathurst Street, Toronto, Ontario, M5T2S8, Canada.

Anne M R AgurTemerty Faculty of Medicine, Division of Anatomy, Department of Surgery, 1 Kings College Circle, University of Toronto, Toronto, Ontario, M5S 1A8, Canada.

Nimish MittalDepartment of Anesthesiology and Pain Management, Toronto Western Hospital, University of Toronto, 399 Bathurst Street, Toronto, Ontario, M5T2S8, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: Rotator interval (RI) corticosteroid injections are used to alleviate pain associated with adhesive capsulitis, though the pattern of injectate spread remains unclear. The purpose of this anatomical study was to assess the staining patterns of intra-articular, intracapsular/extrasynovial, and pericapsular structures of the glenohumeral joint following medial-to-lateral and lateral-to-medial RI injections. Design: Ten cadaveric specimens were injected with a methylene blue dye injectate: five using a medial-to-lateral RI injection technique and five using a lateral-to-medial RI injection technique. Serial dissection was performed to assess the staining of intra-articular, intracapsular/extrasynovial, and pericapsular structures. The frequency of capture and degree of staining were compared between injection groups. Results: The lateral-to-medial injection resulted in the capture of all intra-articular; intracapsular/extrasynovial; and pericapsular structures, whereas the medial-to-lateral injection did not consistently stain all structures. Intracapsular/extrasynovial structures (superior glenohumeral ligament and the long head of biceps tendon) were more darkly stained in the lateral-to-medial group, and pericapsular structures (supraspinatus tendon and coracohumeral ligament) were more darkly stained in the medial-to-lateral group. Conclusion: The frequency of capture and degree of staining of intra-articular, intracapsular/extrasynovial, and pericapsular structures of the glenohumeral joint differed between medial-to-lateral and lateral-to-medial RI injection techniques, which may influence outcomes in pain management for adhesive capsulitis.

Indexed as

Adhesive capsulitisCadavericGlenohumeral jointLong head of biceps tendonRotator interval injectionUltrasound

Identifiers

PMID39238863

DOI10.1016/j.inpm.2022.100164

PMCPMC11372881

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.