Evidence map›Paper›PMID 40355380›Full record

ArticlePM & R : the journal of injury, function, and rehabilitation2025

Ultrasound-guided injections for the retrotrochanteric region: A cadaveric investigation.

Kamal Mezian, Vincenzo Ricci, Ke-Vin Chang, Nimish Mittal, Jan Vacek, Ondřej Naňka, Levent Özçakar

Abstract read
In one paragraph

Article in PM & R : the journal of injury, function, and rehabilitation, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
  2. Article
  3. Ultrasound-guided injections for the retrotrochanteric region: A cadaveric investigation.PM & R : the journal of injury, function, and rehabilitation · 2025
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Kamal MezianDepartment of Rehabilitation Medicine, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic.ORCID https://orcid.org/0000-0002-7203-3325
Vincenzo RicciPhysical and Rehabilitation Medicine Unit, Luigi Sacco University Hospital, A.S.S.T Fatebenefratelli-Sacco, Milan, Italy.ORCID https://orcid.org/0000-0003-2576-2039
Ke-Vin ChangDepartment of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Bei-Hu Branch, Taipei, Taiwan.
Nimish MittalTemerty Faculty of Medicine, Division of Physical Medicine and Rehabilitation, University of Toronto, Toronto, Canada.ORCID https://orcid.org/0000-0002-6291-1956
Jan VacekDepartment of Physiotherapy and Rehabilitation, Faculty of Medicine Masaryk University, Brno, Czech Republic.
Ondřej NaňkaInstitute of Anatomy, First Faculty Of Medicine, Charles University, Prague, Czech Republic.ORCID https://orcid.org/0000-0002-6300-395X
Levent ÖzçakarDepartment of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey.ORCID https://orcid.org/0000-0002-2713-4071

Funding

Supported by MH CZ DRO-VFN 64165
6 · The paper itself

Abstract

backgroundInjections for the piriformis and triceps coxae tendons/bursae have not been described and validated.

objectiveTo investigate the deep retrotrochanteric anatomy and validate an ultrasound (US)-guided injection technique.

methodsFifteen sides of the pelvic half/lower limb of formalin-fixed cadaveric specimens were dissected to investigate the deep retrotrochanteric region. An US-guided superficial/peritendinous green latex dye injection was performed on both sides of a single full body cadaver. Next, seven sides of another four full body cadavers were injected using a deep/intrabursal technique. The cadavers were dissected to observe the dye's location.

resultsIn the anatomical part of the study, we observed a consistent fusion of the piriformis tendon (PT) with the triceps coxae tendon (TCT) (15/15), and with the gluteus medius tendon in 93% (14/15). A bursa of piriformis was identified in 80% (12/15) of the cases, and a subtendinous bursa of obturator internus was found in 73% (11/15). A fat pad overlying the PT-TCT was present in 93% (14/15) of the cases. Regarding the US-guided injections, success rate for superficial/peritendinous injection was 0% (0/2), with the latex dye being identified in the fat pad covering the PT-TCT in both cases. For the deep/intrabursal injection, the success rate was 86% (6/7).

conclusionsThe results indicated a satisfactory success rate for the deep/intrabursal injection of PT-TCT in retrotrochanteric pain syndrome. This technique holds promise for the treatment of bursa and tendon pathologies in relevant patients.

Indexed as

Hip JointTendonsUltrasonography, InterventionalCadaverFemaleHumansInjections, Intra-ArticularMale

Identifiers

PMID40355380
PMCPMC12560205

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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.