Lumbar Spinal Stenosis (LSS)

Basic Overview

Lumbar spinal stenosis is a degenerative spinal disorder characterized by narrowing of the spinal canal, neural foramen, or lateral recess due to bony or fibrous hypertrophy, resulting in compression of the cauda equina or nerve roots. It is the leading cause of neurogenic claudication and low back pain in elderly adults.

Etiology: The most common cause is age-related degenerative changes, including ligamentum flavum hypertrophy, facet joint hyperplasia and medial migration, intervertebral disc herniation, and posterior vertebral body osteophyte formation. Secondary causes include congenital spinal stenosis, spondylolisthesis, trauma, and postoperative epidural adhesions. Multi-level stenosis is common in elderly patients, with the L3-L4 and L4-L5 levels most frequently affected.
Clinical Manifestations: The hallmark symptom is neurogenic intermittent claudication—lower extremity pain, numbness, and weakness that develops with walking and is relieved by rest, spinal flexion, or sitting. Additional symptoms include chronic low back pain, radicular leg pain, and in severe cases, bowel/bladder dysfunction and progressive lower extremity weakness.
Diagnosis: Diagnosis is based on clinical symptoms, physical examination, and lumbar MRI, which is the gold standard for assessing the level and severity of canal stenosis, nerve root compression, and soft tissue pathology. CT scans are used to evaluate bony stenosis, and standing X-rays assess spinal alignment, stability, and spondylolisthesis.

Standard Treatment Modalities

Conservative Management: Indicated for patients with mild to moderate symptoms, no progressive neurological deficit, and high surgical risk. Interventions include NSAIDs, neurotrophic medications, physical therapy, core muscle strengthening rehabilitation, epidural steroid injections, and activity modification.
Surgical Treatment: Indicated for patients with disabling symptoms refractory to conservative treatment, progressive neurogenic claudication, neurological deficits, or bowel/bladder dysfunction. The primary goal is adequate spinal canal decompression with preservation of spinal stability. Minimally invasive procedures are the first-line choice, including unilateral biportal endoscopic (UBE) decompression, percutaneous endoscopic decompression, and microscopic decompression. Open decompression with fusion and instrumentation is performed for patients with concurrent spinal instability, spondylolisthesis, or deformity.

Core Advantages of Treatment in China

World

- Leading Minimally Invasive Decompression Technology: Chinese spine surgeons are global pioneers in the innovation and widespread application of minimally invasive spinal decompression techniques, including UBE and percutaneous endoscopic decompression. These procedures allow for precise, targeted spinal canal decompression under direct visualization, with minimal soft - tissue damage, preservation of spinal stability, and avoidance of unnecessary fusion surgery. The techniques are especially suitable for elderly patients with multiple comorbidities, significantly reducing surgical risk and accelerating postoperative recovery. The clinical outcomes are on par with those of leading Western institutions.

Unique Integrated TCM Conservative and Postoperative Rehabilitation

: For early and mid - stage LSS patients, TCM interventions such as acupuncture, tuina massage, herbal fumigation, and oral herbal medicine can effectively relieve symptoms and slow disease progression. Postoperatively, integrated TCM rehabilitation reduces pain, promotes neurological recovery, and shortens hospital stays and rehabilitation time. This is a unique advantage of Chinese medical care that is unavailable in Western countries.

Unparalleled Experience with High

- Risk Elderly Patients: With the world's largest LSS patient population, Chinese spine surgeons have amassed unparalleled experience in operating on octogenarian and nonagenarian patients with multiple comorbidities (e.g., hypertension, diabetes, cardiovascular disease). Many patients considered inoperable in Western countries have successfully undergone minimally invasive decompression in China, with significant relief of symptoms and improvement in quality of life.

Personalized Stepped

- Care Treatment Protocol: Chinese surgeons have established a standardized stepped - care protocol for LSS, which is personalized according to patient age, stenosis severity, comorbidities, and functional status. For elderly patients, minimally invasive decompression is prioritized over fusion to preserve spinal mobility and function, avoiding overtreatment and improving postoperative quality of life.

Superior Cost

- Effectiveness: The total cost of minimally invasive spinal decompression in China is only 1/3 to 1/5 of that in the U.S. or European countries. The minimally invasive approach also shortens hospital stays and reduces rehabilitation costs, making standardized treatment accessible to millions of elderly patients.