Sonography of the teres minor: A study of cadavers

Hyun-Min Mike Kim, Nirvikar Dahiya, Sharlene A. Teefey, Jay D. Keener, Ken Yamaguchi

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

OBJECTIVE. The purpose of our study was to evaluate in cadavers the ability of high-resolution sonography to identify both the normal tendinous insertion and tears of the teres minor. MATERIALS AND METHODS. The teres minor insertion in five cadaveric shoulders was imaged, and methylene blue dye was injected into both the superior and inferior margins of the teres minor insertion by experienced musculoskeletal radiologists using a 10-5-MHz linear array transducer. Afterward, posterior shoulder dissection was performed. In another group of 11 cadaveric shoulders, an artificial tear was created at the teres minor insertion in six shoulders, and a sham procedure was performed in the remaining five shoulders arthroscopically. After arthroscopy, the teres minor insertion of each shoulder was imaged, and the accuracy of sonography for detecting a tear was evaluated. RESULTS. The dye was injected correctly into both the superior and inferior margins of the teres minor insertion in all five cadaveric shoulders. All six artificial tears were successfully detected on sonography. Four of the five specimens with the sham procedure were identified as having a normal teres minor insertion. One was misinterpreted as a tear. CONCLUSION. Sonography can reliably be used to identify the teres minor insertion and to detect tears of the teres minor muscle-tendon unit.

Original languageEnglish (US)
Pages (from-to)589-594
Number of pages6
JournalAmerican Journal of Roentgenology
Volume190
Issue number3
DOIs
StatePublished - Mar 1 2008

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Rotator Cuff
Cadaver
Ultrasonography
Tears
Coloring Agents
Methylene Blue
Arthroscopy
Transducers
Tendons
Dissection
Muscles

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging

Cite this

Kim, H-M. M., Dahiya, N., Teefey, S. A., Keener, J. D., & Yamaguchi, K. (2008). Sonography of the teres minor: A study of cadavers. American Journal of Roentgenology, 190(3), 589-594. https://doi.org/10.2214/AJR.07.2960
Kim, Hyun-Min Mike ; Dahiya, Nirvikar ; Teefey, Sharlene A. ; Keener, Jay D. ; Yamaguchi, Ken. / Sonography of the teres minor : A study of cadavers. In: American Journal of Roentgenology. 2008 ; Vol. 190, No. 3. pp. 589-594.
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Kim, H-MM, Dahiya, N, Teefey, SA, Keener, JD & Yamaguchi, K 2008, 'Sonography of the teres minor: A study of cadavers', American Journal of Roentgenology, vol. 190, no. 3, pp. 589-594. https://doi.org/10.2214/AJR.07.2960

Sonography of the teres minor : A study of cadavers. / Kim, Hyun-Min Mike; Dahiya, Nirvikar; Teefey, Sharlene A.; Keener, Jay D.; Yamaguchi, Ken.

In: American Journal of Roentgenology, Vol. 190, No. 3, 01.03.2008, p. 589-594.

Research output: Contribution to journalArticle

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N2 - OBJECTIVE. The purpose of our study was to evaluate in cadavers the ability of high-resolution sonography to identify both the normal tendinous insertion and tears of the teres minor. MATERIALS AND METHODS. The teres minor insertion in five cadaveric shoulders was imaged, and methylene blue dye was injected into both the superior and inferior margins of the teres minor insertion by experienced musculoskeletal radiologists using a 10-5-MHz linear array transducer. Afterward, posterior shoulder dissection was performed. In another group of 11 cadaveric shoulders, an artificial tear was created at the teres minor insertion in six shoulders, and a sham procedure was performed in the remaining five shoulders arthroscopically. After arthroscopy, the teres minor insertion of each shoulder was imaged, and the accuracy of sonography for detecting a tear was evaluated. RESULTS. The dye was injected correctly into both the superior and inferior margins of the teres minor insertion in all five cadaveric shoulders. All six artificial tears were successfully detected on sonography. Four of the five specimens with the sham procedure were identified as having a normal teres minor insertion. One was misinterpreted as a tear. CONCLUSION. Sonography can reliably be used to identify the teres minor insertion and to detect tears of the teres minor muscle-tendon unit.

AB - OBJECTIVE. The purpose of our study was to evaluate in cadavers the ability of high-resolution sonography to identify both the normal tendinous insertion and tears of the teres minor. MATERIALS AND METHODS. The teres minor insertion in five cadaveric shoulders was imaged, and methylene blue dye was injected into both the superior and inferior margins of the teres minor insertion by experienced musculoskeletal radiologists using a 10-5-MHz linear array transducer. Afterward, posterior shoulder dissection was performed. In another group of 11 cadaveric shoulders, an artificial tear was created at the teres minor insertion in six shoulders, and a sham procedure was performed in the remaining five shoulders arthroscopically. After arthroscopy, the teres minor insertion of each shoulder was imaged, and the accuracy of sonography for detecting a tear was evaluated. RESULTS. The dye was injected correctly into both the superior and inferior margins of the teres minor insertion in all five cadaveric shoulders. All six artificial tears were successfully detected on sonography. Four of the five specimens with the sham procedure were identified as having a normal teres minor insertion. One was misinterpreted as a tear. CONCLUSION. Sonography can reliably be used to identify the teres minor insertion and to detect tears of the teres minor muscle-tendon unit.

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