Laminoplasty is a posterior decompression technique that expands the lamina to decompress the spinal canal while preserving which structures?

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Prepare for the Selected Cervical Pathologies, Dysfunctions, and Treatments Test with diverse question formats. Learn through explanations and hints to ensure understanding. Be exam-ready!

Multiple Choice

Laminoplasty is a posterior decompression technique that expands the lamina to decompress the spinal canal while preserving which structures?

Explanation:
Laminoplasty expands the canal without sacrificing the spine’s back pieces. By carefully hinging and opening the lamina, the spinal canal is widened to relieve compression, but the posterior elements—the laminae themselves, the spinous processes, and the posterior ligamentous structures—are preserved. This helps maintain stability and the integrity of the posterior tension band, unlike techniques that remove bone or disc material. The other procedures address different targets (foramina or disc) or remove the lamina, so they don’t preserve those posterior elements in the same way.

Laminoplasty expands the canal without sacrificing the spine’s back pieces. By carefully hinging and opening the lamina, the spinal canal is widened to relieve compression, but the posterior elements—the laminae themselves, the spinous processes, and the posterior ligamentous structures—are preserved. This helps maintain stability and the integrity of the posterior tension band, unlike techniques that remove bone or disc material. The other procedures address different targets (foramina or disc) or remove the lamina, so they don’t preserve those posterior elements in the same way.

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