Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine
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Clinical Trial
Accuracy of sonographically guided intra-articular injections in the native adult hip.
The purpose of this study was to determine the accuracy of sonographically guided intra-articular injections performed in the native adult hip using contrast-enhanced fluoroscopy as a reference standard. ⋯ Sonographic guidance can be used to inject the native adult hip joint with acceptable accuracy. When using the oblique sagittal approach, operators must be aware of the possibility of needle withdrawal from the joint due to the limited intra-articular space within the target region, particularly in the absence of effusion.
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Nerve stimulator-assisted localization of the femoral nerve is well described; however, direct ultrasound imaging of the femoral nerve branches may be challenging. The purpose of this study was to correlate the evoked motor responses obtained by femoral nerve stimulation and the topographic orientation of the femoral nerve branches during ultrasound examinations of the infrainguinal region. ⋯ When using out-of-plane ultrasound imaging at the inguinal crease, directing the stimulating needle to the lateral half of the femoral nerve may be associated with a higher probability of encountering the motor branch to the quadriceps muscle.