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Ultrasound assessment of the lateral collateral ligamentous complex of the elbow: imaging aspects in cadavers and normal volunteers.

Teixeira PA, Omoumi P, Trudell DJ, Ward SR, Lecocq S, Blum A, Resnick DL - Eur Radiol (2011)

Bottom Line: The findings were compared.The three components of the LCL could be visualised in all specimens and normal subjects with the exception of the proximal portion of one specimen.In 80% of the specimens and 100% of the healthy volunteers the proximal portion of the LCL could be separated from the extensor tendons.

View Article: PubMed Central - PubMed

Affiliation: Service d'Imagerie Guilloz, CHU Hôpital Central, 10 Boulevard Recteur Senn, Appt 220, 54000 Nancy, France. ped_gt@hotmail.com

ABSTRACT

Objective: The Lateral Collateral Ligamentous complex (LCL) is an important stabiliser of the elbow. It has a Y-shaped structure with three components. In this study, we sought to describe the ultrasound aspect of the individual components of this ligamentous complex and to evaluate the performance of ultrasound in both cadavers and in normal subjects.

Methods: Ten cadaveric elbow specimens underwent high-frequency ultrasound. Two specimens were sliced and two were dissected for anatomical correlation. Ten elbows of normal subjects were also evaluated by ultrasound. The findings were compared.

Results: The three components of the LCL could be visualised in all specimens and normal subjects with the exception of the proximal portion of one specimen. In 80% of the specimens and 100% of the healthy volunteers the proximal portion of the LCL could be separated from the extensor tendons.

Conclusion: High-resolution ultrasound can assess all components of the LCL of the elbow and can distinguish them from surrounding structures.

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Related in: MedlinePlus

a Long axis ultrasound image of the anterolateral surface of the extended elbow at the level of the lateral humeral epicondyle demonstrating a clear separation of the proximal portion of the LCL from the overlying extensor tendons and the echogenic line between these two structures (arrow) in a 25-year-old female control. b Short axis ultrasound image at postero-lateral elbow at the level of the radial head of 29-year-old male volunteer also showing the annular ligament and its posterior attachment (arrow) at the supinator’s crest. c Oblique long axis image of the posterolateral elbow at the level of the radial head of the same subject demonstrating the LUCL and its insertion (arrows) to the supinator tubercle of the ulna (arrowheads). Note the hyperechogenicity of the surrounding soft tissues facilitating the identification of this structure
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Fig2: a Long axis ultrasound image of the anterolateral surface of the extended elbow at the level of the lateral humeral epicondyle demonstrating a clear separation of the proximal portion of the LCL from the overlying extensor tendons and the echogenic line between these two structures (arrow) in a 25-year-old female control. b Short axis ultrasound image at postero-lateral elbow at the level of the radial head of 29-year-old male volunteer also showing the annular ligament and its posterior attachment (arrow) at the supinator’s crest. c Oblique long axis image of the posterolateral elbow at the level of the radial head of the same subject demonstrating the LUCL and its insertion (arrows) to the supinator tubercle of the ulna (arrowheads). Note the hyperechogenicity of the surrounding soft tissues facilitating the identification of this structure

Mentions: The normal ultrasound aspect of each of the portions of the LCL of the elbow is depicted on Fig. 2.Fig. 2


Ultrasound assessment of the lateral collateral ligamentous complex of the elbow: imaging aspects in cadavers and normal volunteers.

Teixeira PA, Omoumi P, Trudell DJ, Ward SR, Lecocq S, Blum A, Resnick DL - Eur Radiol (2011)

a Long axis ultrasound image of the anterolateral surface of the extended elbow at the level of the lateral humeral epicondyle demonstrating a clear separation of the proximal portion of the LCL from the overlying extensor tendons and the echogenic line between these two structures (arrow) in a 25-year-old female control. b Short axis ultrasound image at postero-lateral elbow at the level of the radial head of 29-year-old male volunteer also showing the annular ligament and its posterior attachment (arrow) at the supinator’s crest. c Oblique long axis image of the posterolateral elbow at the level of the radial head of the same subject demonstrating the LUCL and its insertion (arrows) to the supinator tubercle of the ulna (arrowheads). Note the hyperechogenicity of the surrounding soft tissues facilitating the identification of this structure
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3101344&req=5

Fig2: a Long axis ultrasound image of the anterolateral surface of the extended elbow at the level of the lateral humeral epicondyle demonstrating a clear separation of the proximal portion of the LCL from the overlying extensor tendons and the echogenic line between these two structures (arrow) in a 25-year-old female control. b Short axis ultrasound image at postero-lateral elbow at the level of the radial head of 29-year-old male volunteer also showing the annular ligament and its posterior attachment (arrow) at the supinator’s crest. c Oblique long axis image of the posterolateral elbow at the level of the radial head of the same subject demonstrating the LUCL and its insertion (arrows) to the supinator tubercle of the ulna (arrowheads). Note the hyperechogenicity of the surrounding soft tissues facilitating the identification of this structure
Mentions: The normal ultrasound aspect of each of the portions of the LCL of the elbow is depicted on Fig. 2.Fig. 2

Bottom Line: The findings were compared.The three components of the LCL could be visualised in all specimens and normal subjects with the exception of the proximal portion of one specimen.In 80% of the specimens and 100% of the healthy volunteers the proximal portion of the LCL could be separated from the extensor tendons.

View Article: PubMed Central - PubMed

Affiliation: Service d'Imagerie Guilloz, CHU Hôpital Central, 10 Boulevard Recteur Senn, Appt 220, 54000 Nancy, France. ped_gt@hotmail.com

ABSTRACT

Objective: The Lateral Collateral Ligamentous complex (LCL) is an important stabiliser of the elbow. It has a Y-shaped structure with three components. In this study, we sought to describe the ultrasound aspect of the individual components of this ligamentous complex and to evaluate the performance of ultrasound in both cadavers and in normal subjects.

Methods: Ten cadaveric elbow specimens underwent high-frequency ultrasound. Two specimens were sliced and two were dissected for anatomical correlation. Ten elbows of normal subjects were also evaluated by ultrasound. The findings were compared.

Results: The three components of the LCL could be visualised in all specimens and normal subjects with the exception of the proximal portion of one specimen. In 80% of the specimens and 100% of the healthy volunteers the proximal portion of the LCL could be separated from the extensor tendons.

Conclusion: High-resolution ultrasound can assess all components of the LCL of the elbow and can distinguish them from surrounding structures.

Show MeSH
Related in: MedlinePlus