Clinical Research Directory

Ultrasound-guided injection of the SI joints The patient is placed in a prone position to receive this injection treatment. The Curvilinear transducer is placed in a transverse orientation to identify the sacral hiatus first. After identifying the sacral cornu, the transducer is moved in a lateral direction until the lateral edge of the sacrum is observed. With the transducer maintained in the transverse orientation, it is then moved in a cephalad or upward direction until the bony contour of the ileum is identified. The cleft between the bony contours of the sacrum and ileum represents the posterior aspect of the SI joint. By tilting the transducer in a caudal direction, the lower one third of the SI joint is identified. Because of its synovial component, the lower one third of the SI joint is the portion of the entire SI joint in which the injection should be performed. The medial to lateral approach and intraarticular deposition is preferred for the ultrasound-guided SI joint

patients will be positioned prone. A 6-13 MHz linear array ultrasound transducer was placed in the parasagittal orientation with the second sacral foramen (SF-2) in the field. A 21G short bevel needle is inserted in-plane approach from the cephalad to the caudad direction. After hitting the underlying bone, twenty millilitres of local anaesthetic solution (1:1 mixture of lidocaine 2% and bupivacaine 0.25%) will be injected. An anechoic LA spread in the plane between the multifidus muscle (MFM) and the hyperechoic bony area (between the median and intermediate sacral crests) will be confirmed. The Curvilinear transducer is placed in a transverse orientation to identify the sacral hiatus first. After identifying the sacral cornu, the transducer is moved in a lateral direction until the lateral edge of the sacrum is observed. With the transducer maintained in the transverse orientation, it is then moved in a cephalad or upward direction until the bony contour of the ileum is identified.