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What is a X-RAY DYNAMIC COCCYX (TAIL BONE) SKIAGRAMS LATERAL DECUBITUS & SITTING?

X-Ray Dynamic Coccyx (Tail Bone) Skiagrams – Lateral Decubitus & Sitting is a specialized radiographic examination that evaluates the movement and alignment of the tail bone by comparing side-view images obtained while lying on the side and while sitting. The examination helps diagnose coccygeal instability, fractures, dislocations, abnormal mobility, and other causes of chronic tailbone pain.

Additional Information

Also known as/ Other names: Dynamic Coccyx X-Ray (Sitting & Lateral Decubitus Views), Coccyx Dynamic Study X-Ray, Tailbone X-Ray Dynamic Sitting Study, Dynamic Sacrococcygeal X-Ray Lateral Views
Parameters: 1
Recommended for: M/F/Others
Sample Type: _
Patient Preparation: -
Reports: Within 24 working hrs

Disclaimer: Result availability is subject to the laboratory's schedule and test availability.

FAQs

What is X-Ray Dynamic Coccyx (Tail Bone) Skiagrams – Lateral Decubitus & Sitting?

X-Ray Dynamic Coccyx (Tail Bone) Skiagrams – Lateral Decubitus & Sitting is a specialized X-ray examination that captures side-view (lateral) images of the tail bone (coccyx) in two positions—lying on the side (Lateral Decubitus) and sitting—to assess its movement, alignment, and stability.

Why is this examination performed?

It is commonly performed to investigate chronic tailbone pain (coccydynia), trauma, coccygeal instability, fractures, dislocations, abnormal mobility, and degenerative changes affecting the coccyx.

What does “Lateral Decubitus” mean?

Lateral Decubitus means lying on your side during the X-ray examination. This position provides a baseline image of the coccyx without body weight being applied.

Why are X-rays taken while sitting?

The sitting position places normal body weight on the coccyx, allowing doctors to observe how the tail bone moves under pressure. Comparing the sitting and lying images helps identify abnormal movement or instability.

Which structures are examined during the test?

The examination visualizes the coccyx (tail bone), sacrum, sacrococcygeal joint, intercoccygeal joints, and surrounding bony structures.

How is this different from a routine coccyx X-ray?

A routine coccyx X-ray is taken in a single position, whereas a dynamic coccyx X-ray compares images taken while lying and sitting, making it more effective at detecting abnormal movement or instability.

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