Overview
Spinal stenosis develops as the spinal canal gradually narrows, most often from age-related degenerative changes — thickened ligaments, bone spurs, and bulging discs that crowd the space around the spinal cord and nerve roots. It can occur in the lower back (lumbar stenosis) or the neck (cervical stenosis), and each has a somewhat different symptom pattern.
Because it develops from wear-related changes that accumulate over years, spinal stenosis is typically a slowly progressive condition rather than a sudden event. Many people live with mild narrowing for years without significant symptoms, while others develop nerve or spinal cord compression that requires evaluation and treatment.
Symptoms
Symptoms depend on where the narrowing occurs and which nerves are affected:
- Leg pain or heaviness with walking — often eases with sitting or leaning forward over a shopping cart (sometimes called the “shopping-cart sign”), a hallmark of lumbar stenosis.
- Numbness or tingling in the legs, feet, arms, or hands, depending on which nerves are compressed.
- Balance or coordination changes — more typical of cervical stenosis affecting the spinal cord, and worth prompt evaluation.
- Back or neck pain, which may be present alongside nerve symptoms or occur on its own.
- New bowel or bladder dysfunction, numbness in the saddle area, or rapidly progressive leg weakness are emergency signs — go to the emergency department rather than waiting for a scheduled visit.
Treatment Options
Dr. Gerlach's approach favors non-operative management whenever appropriate. Initial treatment typically includes physical therapy, targeted injections, and strategies for managing activity and walking tolerance. Many patients find their symptoms manageable with these approaches for an extended period.
When walking tolerance or nerve function continues to decline despite non-surgical care, decompression surgery may be recommended. This involves removing the bone and ligament overgrowth that is crowding the nerves, giving them room again — performed with minimally invasive techniques when appropriate, and sometimes combined with spinal fusion depending on the specific anatomy and stability of the spine.
Frequently Asked Questions
Is spinal stenosis dangerous?
For most people, spinal stenosis is usually a slowly progressive condition rather than an emergency, and it can often be monitored and managed over time. Cervical spinal cord compression is the exception — it deserves closer attention and more prompt evaluation, since it affects the spinal cord itself rather than individual nerve roots.
Can spinal stenosis improve without surgery?
Yes — for many patients, symptoms are often manageable non-operatively for years with physical therapy, injections, and activity strategies. Surgery is considered when non-surgical care no longer keeps pace with the condition.
What does spinal stenosis surgery involve?
Decompression surgery removes the bone and ligament overgrowth that is crowding the spinal nerves, giving them room again. Dr. Gerlach performs this minimally invasively when appropriate, and it is sometimes combined with fusion depending on the individual case.