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Ultrasound-guided hip joint injection is a joint injection in the hip, assisted by medical ultrasound. Hip and groin pain often presents a diagnostic and therapeutic challenge. Hip and groin pain often presents a diagnostic and therapeutic challenge.
Ultrasound-guidance is a popular choice for injections, [5] but injections can also be done under CT or MRI-guidance. [4] [6] Controlled studies have found that for patients with suspected piriformis syndrome, botox injections into the piriformis are more effective than a placebo [22] and also more effective than just an anesthetic block alone.
The needle size, length and type should be selected based on the site, depth and patient's body habitus. 22–24G needles are sufficed for most injections. [1] As an example, ultrasound-guided hip joint injection [16] can be considered when symptoms persist despite initial treatment options such as activity modification, analgesia and physical ...
Injections deliver medication directly to the piriformis muscle through a needle. The needle is placed into the piriformis muscle with image guidance such as fluoroscopy, ultrasound, CT, or MRI. [2] [30] Ultrasound is a popular choice due to a balance of accuracy, accessibility, lack of radiation exposure, and affordability. [29] [2]
To improve accuracy, ultrasound-guided techniques were developed. The original ultrasound-guided technique for injection of the GON was described by Greher and colleagues in 2010; it targets the nerve as it courses superficial to the obliquus capitis inferior muscle at the C1-C2 level. [1]
Modern portable ultrasound devices allow the user to visualize internal anatomy, including the nerves to be blocked, neighboring anatomic structures and the needle as it approaches the nerves. Observation of local anesthetic surrounding the nerves during ultrasound-guided injection is predictive of a successful block. [5]
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Medical ultrasound includes diagnostic techniques (mainly imaging techniques) using ultrasound, as well as therapeutic applications of ultrasound. In diagnosis, it is used to create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs, to measure some characteristics (e.g., distances and velocities) or to generate an informative audible sound.