Ultrasound for Interventional Pain Management by Unknown

Author:Unknown
Language: eng
Format: epub
ISBN: 9783030183714
Publisher: Springer International Publishing

Fig. 14.3Paramedian sagittal articular process view. (Reprinted with permission from Philip Peng Educational Series)

Paramedian Sagittal Articular Process View

Moving the transducer medially 1–2 cm reveals an image with continuous hyperechoic bone shadow (no gap) from the articular process (AP) (Fig. 14.3).

Fig. 14.4Paramedian sagittal oblique view. (Reprinted with permission from Philip Peng Educational Series)

Paramedian Sagittal Oblique View

Maintaining the transducer in the same position as Fig. 14.3 but tilting it medially will yield a view that reveals the interlaminar window (Fig. 14.4). Through this window, the intrathecal space (ITS) can be seen between the laminae (L). The ligamentum flavum (∗) is usually not clearly seen due to the orientation of the structure relative to the transducer but the posterior dura (PD) can be usually seen clearly in young patient. The other side of the ITS reveals a dense hyperechoic shadow from the posterior cortex of the vertebra, posterior longitudinal ligament, and anterior dura. Since the three structures cannot be differentiated in ultrasound, they are termed anterior complex.

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