Lower back pain is often dismissed as a normal part of aging—but in many cases, it may be a treatable condition known as spinal stenosis. In a recent conversation, spine surgeon Kyle Kesler, MD of Center for Sports Medicine & Orthopaedics explained the mechanics behind this common condition and how modern treatments can help patients return to an active, pain-free life.
What Is Spinal Stenosis?
Spinal stenosis refers to the narrowing of the spinal canal—the “tube” that protects the spinal cord and nerves. In the lumbar spine (lower back), this narrowing can place pressure on nerves that branch out to the legs.
“Lumbar just means low back, and stenosis just means narrowing,” Dr. Kesler explains. “At a basic level, people have narrowing in their low back—but most don’t realize what that actually does or what we can do about it.”
Common causes include:
- Age-related arthritis
- Herniated or bulging discs
- Thickened ligaments
- Bone spurs
As the canal narrows, nerves become compressed, leading to pain and mobility issues.
Recognizing the Symptoms
Many patients assume their symptoms are simply part of getting older. However, spinal stenosis has distinct warning signs:
- Pain in the lower back, buttocks, or legs when walking or standing
- Relief when sitting or leaning forward
- Difficulty climbing stairs or walking long distances
- Numbness, tingling, or weakness in the legs
“People are often fine when they’re sitting,” Dr. Kesler notes. “But when they start walking, they develop pain in their back or legs and have to sit down before they can keep going.”
A hallmark sign is activity-related leg pain that improves with rest, which differentiates spinal stenosis from general muscle strain.
Why It Happens: The Mechanics Explained
Dr. Kesler describes the spine as a protective tube containing nerves. In the lower back, these nerves branch out and become more vulnerable to compression.
“When you get down to the low back, those nerves start to spread out and branch,” he says. “If arthritis, bone spurs, or disc changes push into that tube, the space tightens and the nerves get pinched.”
This nerve compression triggers pain, weakness, or numbness during activity.
Is It Normal Aging? Not Necessarily.
While spinal changes occur with age, debilitating pain and loss of mobility are not inevitable. Many patients delay care because they believe nothing can be done.
“People think, ‘I’m just getting older,’” Dr. Kesler says. “But this isn’t something you have to live with—it’s something we can treat.”
Treatment Options: From Conservative Care to Minimally Invasive Surgery
Treatment depends on severity and patient needs. Options may include:
Nonsurgical Treatments
- Physical therapy to improve strength and mobility
- Anti-inflammatory medications
- Targeted spinal injections to reduce inflammation and pain
“Sometimes just an injection can relieve the pressure and calm the nerves,” Dr. Kesler explains.
Minimally Invasive Procedures
For persistent or severe symptoms, outpatient procedures can relieve pressure on nerves by removing the tissue or bone causing compression.
“We’re often talking about a short outpatient procedure with a small incision,” he says. “Many patients would trade that for the leg pain they’ve been living with in a heartbeat.”
Many patients experience rapid improvement—sometimes immediately regaining the ability to walk longer distances without pain.
The Importance of Accurate Diagnosis
Spinal conditions can mimic other issues such as hip or vascular problems. A thorough evaluation—including history, physical exam, and imaging—helps pinpoint the true cause of symptoms.
“That’s why we spend years training—to ask the right questions and pinpoint the cause,” Dr. Kesler notes. “It’s about making sure we fix the real problem.”
When to Seek Care
Consider seeing a spine specialist if you experience:
- Leg pain when walking that improves with sitting
- Progressive difficulty with mobility
- Persistent numbness or weakness
- Back pain that interferes with daily activities
Early evaluation can prevent worsening symptoms and expand treatment options.
Moving Forward
Spinal stenosis may be common, but it is also highly treatable. With modern diagnostic tools and minimally invasive techniques, patients can often return to the activities they enjoy without chronic pain.
If you’re experiencing symptoms, consulting a spine specialist can be the first step toward relief and renewed mobility.
