Sacro-Iliac Joint Sensory Block and Radiofrequency Ablation: Assessment of Bony Landmarks Relevant for Image-Guided Procedures

Figure 3

Morphology of male and female sacra. Photograph (a) and model (b) of a male sacrum; photograph (c) and model (d) of a female sacrum. DT, distance from lateral margin of foramen to adjacent transverse sacral tubercle; TD1–3, total distance from S1–S3 foramina; IT1–3, intertubercular distance from TST1 to TST3; , transverse sacral tubercle.

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