Lumbar Spondylolisthesis
Spondylolisthesis occurs when one vertebra slips forward over the vertebra below it, creating instability in the spine. This abnormal movement can place pressure on the spinal nerves, leading to back pain, leg pain, numbness, weakness, or other symptoms.
The condition can range from mild to severe and may develop as a result of age-related degeneration, stress fractures, injury, or congenital abnormalities. As the slippage progresses, it can contribute to nerve compression, spinal instability, and changes in spinal alignment if left untreated.
Symptoms
Symptoms of spondylolisthesis can vary depending on the severity of the vertebral slippage and whether nearby nerves are affected. Common symptoms include:
Lower back pain that typically worsens with standing, walking, or bending backward
Pain that radiates into the buttocks or legs
Numbness, tingling, or weakness in one or both legs
Leg pain or cramping while walking that improves with sitting or leaning forward (neurogenic claudication)
Tight hamstrings
Difficulty standing upright or maintaining proper posture
Reduced walking tolerance due to pain or fatigue
Non-Surgical Management
Many patients with low-grade or stable spondylolisthesis experience significant improvement with conservative treatment. The goal of non-surgical management is to reduce pain, improve function, and support the spine while avoiding or delaying surgery whenever possible.
Treatment options may include:
Activity modification to reduce stress on the affected spinal segment
Anti-inflammatory medications (NSAIDs) or oral steroids to help manage pain and inflammation (link to your Medications page)
Physical therapy to improve flexibility, core strength, and spinal stability
Epidural steroid injections to reduce inflammation around irritated nerves and provide temporary pain relief
Surgical Management
The most appropriate procedure depends on the degree of vertebral slippage, the severity of nerve compression, and your overall spinal health. Surgical treatment options may include:
Lumbar decompression surgery (laminectomy or foraminotomy) to relieve pressure on compressed spinal nerves
Spinal fusion surgery to stabilize the affected spinal segment and prevent further slippage
Minimally invasive spinal fusion, when appropriate, to reduce tissue disruption and support a faster recovery
Interbody fusion procedures (TLIF, PLIF, or ALIF) to restore spinal alignment, stabilize the spine, and relieve nerve compression
Spondylolisthesis represents a mechanical failure of the spinal motion. Differentiating stable slips and unstable or symptomatic cases is key to determining the treatment.
Diagnosis
Diagnosing spondylolisthesis begins with a thorough physical examination and a review of your symptoms. Imaging studies help confirm the diagnosis, determine the severity of the vertebral slippage, and identify any nerve compression.
Your evaluation may include:
X-rays, including standing and flexion-extension views, to evaluate spinal stability and the amount of vertebral slippage
MRI to assess the spinal nerves, discs, and surrounding soft tissues
CT scan to provide detailed images of the bones when additional evaluation is needed
The severity of spondylolisthesis is graded based on the percentage of forward slippage of one vertebra over another, helping guide the most appropriate treatment plan.
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