{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,20]],"date-time":"2026-03-20T01:46:59Z","timestamp":1773971219955,"version":"3.50.1"},"reference-count":19,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2025,5,12]],"date-time":"2025-05-12T00:00:00Z","timestamp":1747008000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["PM&amp;R"],"published-print":{"date-parts":[[2025,10]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Injections for the piriformis and triceps coxae tendons\/bursae have not been described and validated.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To investigate the deep retrotrochanteric anatomy and validate an ultrasound (US)\u2010guided injection technique.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Fifteen sides of the pelvic half\/lower limb of formalin\u2010fixed cadaveric specimens were dissected to investigate the deep retrotrochanteric region. An US\u2010guided 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.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>In 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\u2013TCT was present in 93% (14\/15) of the cases. Regarding the US\u2010guided injections, success rate for superficial\/peritendinous injection was 0% (0\/2), with the latex dye being identified in the fat pad covering the PT\u2013TCT in both cases. For the deep\/intrabursal injection, the success rate was 86% (6\/7).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The results indicated a satisfactory success rate for the deep\/intrabursal injection of PT\u2013TCT in retrotrochanteric pain syndrome. This technique holds promise for the treatment of bursa and tendon pathologies in relevant patients.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/pmrj.13381","type":"journal-article","created":{"date-parts":[[2025,5,12]],"date-time":"2025-05-12T22:30:20Z","timestamp":1747089020000},"page":"1191-1198","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Ultrasound\u2010guided injections for the retrotrochanteric region: A cadaveric investigation"],"prefix":"10.1002","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7203-3325","authenticated-orcid":false,"given":"Kamal","family":"Mezian","sequence":"first","affiliation":[{"name":"Department of Rehabilitation Medicine, First Faculty of Medicine Charles University and General University Hospital  Prague Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2576-2039","authenticated-orcid":false,"given":"Vincenzo","family":"Ricci","sequence":"additional","affiliation":[{"name":"Physical and Rehabilitation Medicine Unit, Luigi Sacco University Hospital A.S.S.T Fatebenefratelli\u2010Sacco  Milan Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ke\u2010Vin","family":"Chang","sequence":"additional","affiliation":[{"name":"Department of Physical Medicine and Rehabilitation National Taiwan University Hospital, Bei\u2010Hu Branch  Taipei Taiwan"},{"name":"Department of Physical Medicine and Rehabilitation National Taiwan University College of Medicine  Taipei Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6291-1956","authenticated-orcid":false,"given":"Nimish","family":"Mittal","sequence":"additional","affiliation":[{"name":"Temerty Faculty of Medicine, Division of Physical Medicine and Rehabilitation University of Toronto  Toronto Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jan","family":"Vacek","sequence":"additional","affiliation":[{"name":"Department of Physiotherapy and Rehabilitation Faculty of Medicine Masaryk University  Brno Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6300-395X","authenticated-orcid":false,"given":"Ond\u0159ej","family":"Na\u0148ka","sequence":"additional","affiliation":[{"name":"Institute of Anatomy, First Faculty Of Medicine Charles University  Prague Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2713-4071","authenticated-orcid":false,"given":"Levent","family":"\u00d6z\u00e7akar","sequence":"additional","affiliation":[{"name":"Department of Physical and Rehabilitation Medicine Hacettepe University Medical School  Ankara 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