Overview
The lateral sacrum and coccyx radiograph profiles the lower spine to assess alignment and fractures. The patient lies in true lateral with the detector centered to the sacrum. This view is useful for evaluating coccygeal angulation and sacral fractures.
Technique
Position the patient in true lateral and center the detector to include the sacrum and coccyx. Use appropriate exposure and immobilize the patient to minimize motion. Include adjacent pelvic structures when indicated.
Clinical Indications
Lateral sacrum and coccyx are indicated for trauma tailbone pain and suspected fracture or dislocation. They complement AP views for comprehensive assessment. CT or MRI may be required for detailed evaluation of complex injuries.
Image Assessment
Evaluate coccygeal angulation sacral body integrity and posterior element alignment. Inspect for cortical disruption and callus formation on follow up. Report findings relevant to pain management and surgical planning.