Question:
Partial anterior dislocation of one segment of the spine over another is:
Partial anterior dislocation of one segment of the spine over another is:
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Forward slip of a vertebra, often from a pars interarticularis defect.
Updated On: Jun 24, 2026
- Spondylosis
- Spondylolisthesis
- Kyphosis
- Scoliosis
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The Correct Option is B
Solution and Explanation
Step 1: The question describes a forward (anterior) slip of one vertebra over the one below it. Matching this definition to the terms is the task.
Step 2: Spondylolisthesis is precisely this: a partial anterior displacement of one vertebral segment over another. It often results from a defect in the pars interarticularis. So option (b) is correct.
Step 3: Spondylosis (a) refers to degenerative osteoarthritic change of the spine (disc and facet degeneration with osteophytes), not a slip, so it is wrong.
Step 4: Kyphosis (c) is an excessive posterior (forward bending) curvature in the sagittal plane, and scoliosis (d) is a lateral (sideways) curvature of the spine. Neither describes a vertebral slip, so the answer is spondylolisthesis.
Step 2: Spondylolisthesis is precisely this: a partial anterior displacement of one vertebral segment over another. It often results from a defect in the pars interarticularis. So option (b) is correct.
Step 3: Spondylosis (a) refers to degenerative osteoarthritic change of the spine (disc and facet degeneration with osteophytes), not a slip, so it is wrong.
Step 4: Kyphosis (c) is an excessive posterior (forward bending) curvature in the sagittal plane, and scoliosis (d) is a lateral (sideways) curvature of the spine. Neither describes a vertebral slip, so the answer is spondylolisthesis.
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