You’ve been diagnosed with a narrow lumbar spinal canal (spinal stenosis) . You are wondering what the management options are available to help with your pain.
Based on my knowledge as a radiographer and research in medical studies. I will answer some of the common asked questions by internet users.
Happy reading!😀 and feel free to ask questions in the comments or share your own experience.🙏
Last updated: November, 2025. Written by Juliet Semakula, a diagnostic radiographer.
| The term lumbar spinal stenosis is used to describe pain in the legs caused by a problem in the lower lumbar back due to spinal tunnel narrowing. It is important to understand that not all spinal tunnel narrowing will lead to symptoms such as leg pain. Joints of the back, hip and pelvis and other conditions such as peripheral artery disease can also cause similar symptoms. |
▶️What exactly is a narrow lumbar canal (spinal stenosis)?
Our spine has a canal which passes through the spine as a tunnel that protects the spinal cord and the nerve roots that travel from it to the legs.
This term describes the reduction in space within the spinal canal. The condition specifically affects the lumbar (lower) region of the spine.
Lumbar spinal stenosis is a narrowing of the spinal canal in the lower back, which can compress nerves as shown in the image below.
MRI scan image showing L4-L5 lumbar stenosis
Lumbar spinal stenosis affects more than 200,000 adults in the USA, and it is the most common reason for spinal surgery in patients over 65 years resulting in substantial pain and disability (Lurie,2016)
▶️Stages of narrow lumbar canal.
Narrowing of the lumbar spinal canal (spinal stenosis) is often described in stages or grades based on the degree of narrowing observed on imaging scans and the severity of neurological symptoms.
Stage 1️⃣ (mild Spinal stenosis) Slight narrowing of the spinal canal but with no significant nerve compression.
At this stage you may feel occasional stiffness or minor pain after prolonged standing or walking.
Stage 2️⃣ (moderate spinal Stenosis) More significant narrowing of the spinal canal, causing more restricted space for nerve roots
At this stage you may feel Intermittent pain, stiffness, and occasional numbness or tingling in the leg.
Stage 3️⃣(severe or advanced spinal Stenosis) Severe narrowing of the spinal canal, leading to more evident nerve compression
At this stage you may feel persistent pain, weakness, numbness, and difficulty walking.
Final stage 4️⃣or debilitating Spinal Stenosis completely gone.
At this stage you will feel constant pain, significant weakness, loss of coordination, and severe mobility issues.
Here is a chat showing different stages of spinal stenosis on MRI scan.
Schema of the 3-stage neural network approach. It includes the segmentation model (detection of anatomical structures), the binary classification (presence or absence) for central, lateral recess and foraminal stenoses and the severity classification model (mild, moderate, severe) (Tumko,2024)
▶️What really causes lumbar stenosis?
Lumbar spinal stenosis is caused by spinal tunnel narrowing and irritation of the lumbar nerve roots.
There are several causes for this:
🟢Natural aging process, growing old can cause natural wear-and-tear changes that narrow the spinal canal.
🟢Slipped discs: A damaged disc can bulge or protrude into the spinal canal, leading to pressure on the nerves.
🟢Vertebral fractures caused by trauma can cause damage and narrowing of the spinal canal.
🟢Arthritis or osteoarthritis is the most common cause, where wear-and-tear arthritis leads to the overgrowth of bone and thickening of ligaments within the spinal canal, narrowing the space for nerves.
🟢Spondylolisthesis is a vertebra that slips out of its normal position, potentially narrowing the spinal canal and compressing nerves
🟢Congenital conditions: Some people are born with a spinal canal that is narrower than average, making them more susceptible to stenosis.
🟢Bone disease like Paget’s disease can affect bone structure and contribute to spinal narrowing.
These changes can compress the spinal cord and nerve roots, causing symptoms like leg pain, numbness, and weakness
It is a relatively common occurrence that 2 out of 5 patients over 60 I x-ray at work; their x-rays show lumbar spinal stenosis without necessarily the patient having any pain. Or other associated symptoms.
▶️How can I be sure if I have a narrow lumbar canal?
Most people I have seen being diagnosed with a narrow lumbar canal normally have the following symptoms.
🟢Pain: Can manifest as back pain, radiating to the leg pain (sciatica), or neck pain.
🟢Numbness or Tingling: A sensation of “pins and needles” or loss of feeling in the affected limbs.
🟢Muscles may feel weak, especially in the legs, and this weakness can worsen with activity.
🟢The pain is typically burning or cramping, which worsens with standing and walking and improves with bending forward or sitting (Webb,2024)
Having these symptoms does not confirm to you that you really have lumbar spinal stenosis. You will have to see a healthcare professional to conduct a physical examination and imaging.
According to research studies the diagnosis of a spinal stenosis can be strongly suspected when you have the following symptoms and imaging done.
🔵Limbs neuralgias with a poorly defined location are types of nerve pain that causes symptoms like burning, shooting or electric-like pain causing muscle weakness in the affected leg.
🔵Paraesthesia (tingling or numbness) affecting several dermatomes which is a condition caused by spinal nerve compression at the lumbar region.
🔵Levels of stenosis and narrowing which is often categorized by its severity as mild, moderate, or severe, with specific percentages of diameter reduction or visual assessments on imaging factors are often used to confirm that you have spinal stenosis
🔵Distraction of bone bridges ligaments and discal structures which are components of the spinal column that work together to provide support, stability, and movement.
Deshayes, 1992
🔵MRI scan using an Myelography which uses a contrast dye to create detailed images of the spinal cord, and the surrounding fluid-filled space is normally done.
▶️Spinal stenosis and walking problems
When you have spinal stenosis, walking can sometimes be difficult for some people due to the symptoms we have looked at.
The main two factors that are commonly known to cause walking problems when you have spinal stenosis are:
1️⃣Nerve Compression: When the spinal canal narrows, nerves or the spinal cord can be compressed, especially in the lower (lumbar) spine
2️⃣Increased Pressure: Standing and walking puts pressure on the spinal column, which can worsen nerve compression in people with stenosis.
For this reason:
Some people find it painful and cramping in one or both legs when walking.
Unsteadiness and anxiety while walking can affect leg balance in some people.
Walking long distances becomes difficult when you have lumbar spinal stenosis. And this limitation impacts your functioning and quality of life.
source:Chagnas,2019
Having spinal stenosis is a challenging condition that can affect your ability to work and enjoy life. Try to learn as much as you can about the condition and take an active role in your treatment.
Focus on self-care ,remember consistent self-care strategies can significantly improve your ability to function daily.
▶️Is physiotherapy worth it when you have a narrow lumbar canal?
Physical therapy is commonly recommended for people with mild to moderate lumbar spinal stenosis.
However having physio can not change the structure in your back, it can only help to provide strategies to keep you moving and reduce your symptoms.
I have seen patients awaiting surgery advised to have physio which helps to improve their walking and reduce pain.
So, it is worth trying physio if it helps with the symptoms you may be facing.
▶️What is the treatment for lumbar spinal stenosis?
Your doctor will base on these factors to manage or treat spinal stenosis.
➡️The symptoms you are experiencing.
➡️ Your general health
➡️ Your treatment preference.
The most common treatment of lumbar spinal stenosis is non-surgical management; surgery only comes in when your symptoms are severe and non-conservative management cannot help.
Non-surgical management include:
🟠Exercise therapy and physical activity with the help of physiotherapy is normally the first treatment to help with walking and pain.
🟠An adjusted walking short distance programme is good for your back.
🟠 Swimming
🟠A progressive cycling programme to help with leg movement.
🟠 A stretching and lying routine exercises
Images retrieved from south tees national health services
There is less evidence available to show that regular stretching of the lumbar spine can also reduce symptoms, although the relief provided during exercise may be a good thing.
🟠Other types of exercise frequently suggested by physiotherapists are muscle-strengthening exercises for the back or lower limbs.
The theory behind this is to make the muscles stronger to compensate for the deficiencies of the more rigid structures.
Caution! Therapy and exercises do not change spinal tunnel narrowing but rather help to reduce irritation and improve nerve root resiliency to movement.
Lifestyle modification for example weight loss
🟠Multidisciplinary rehabilitation.
🟠Oral analgesics (medications)
Analgesics such as Epidural steroid or corticosteroid spinal injections are used to help with pain.
source:Chagnas,2019
Most studies offering a comparative analysis have demonstrated that surgical intervention is more effective than non-surgical interventions to manage pain associated with spinal stenosis.
In an interview of 33 older adults who had lumbar spinal stenosis and used treatments such as epidural steroid injections, felt they had poor outcomes (in a research study done by (Edwards et al 2015).
Observations made after having these injections.
♦️88% reported experiencing pain/discomfort during activities like walking
♦️85% had problems with physical function
♦️73% found difficulty exercising.
♦️55% had difficulty participating in hobbies and leisure activities.
♦️52% had problems with weakness
Older adults with lumbar spinal stenosis rated problems related to pain and physical function as the most important outcomes to them, yet they did not see the effectiveness of the injections when used.
So, using non conservative treatments such as epidural steroid injections for older patients may be insufficient to comprehensively assess outcomes from the patient perspective.
That being said:
There are few high-quality randomized trials that have looked at how effective these conservative management work
A systematic review concluded that there is insufficient evidence to recommend any specific type of non-surgical treatment.
source: Lurie, 2016
▶️Surgical management options:
Several different surgical procedures are used to treat patients with lumbar spinal stenosis for these people who do not improve with non-operative therapies
🟣Elective surgery to help decompression of the nerve roots.
A procedure known as laminectomy where a small part of the spinal tunnel wall is removed. If laminectomy is considered your surgeon will discuss risks and benefits with you before the procedure.
Some people who have had surgery claim to have improved leg pain and walking disability better than for non-operative treatment (Lurie, 2016).
Surgery groups showed better late clinical outcomes after one year and higher complication rate throughout the follow-up duration, although it had no significant differences compared with conservative groups in the first six months post-treatment (Ma XL,2017)
But still research studies and actual evidence are heterogeneous and often of limited quality.
▶️How does spinal stenosis affect the bowels and bladder?
When the nerve roots in the lower spine are compressed, this can lead to cauda equina syndrome and other symptoms such as:
♦️Urinary retention and difficult passing urine.
♦️Constipation and increased difficulty with bowel movements.
♦️Loss of bowel or bladder control
♦️ Loss of sensation not feeling a need to empty the bladder.
♦️Some people feel numbness or loss of feeling around the genitals, buttocks and between the thighs.
This severe pressure disrupts nerve signals from the brain, causing the inability to control or sense when the bladder is full or when a bowel movement is needed.
When you think you are having problems with your bowels and bladder movement, please seek immediate medical attention.
Here is another article that explains more about cauda equina syndrome.
We have come to the end of this article, let’s share any experience in the comments section. Wishing a quick recovery!
Here are other articles that you may also like.
⚫Spine Compression vertebrae fracture: Treatment and Recovery time.
⚫Can you walk or sit with a compressed vertebrae fractured back?
⚫Broken Thoracic-lumbar vertebrae: treatment and recovery time!
⚫Spinal fusion, are there permanent movement restrictions?
⚫Cauda equina syndrome, is it curable ,treatment and recovery timeline.
📚Sources:
Deshayes P, Louvel JP. Le canal lombaire étroit [Narrow lumbar canal]. Rev Prat. 1992 Mar 1;42(5):569-72. French. PMID: 1604183.
Lurie J, Tomkins-Lane C. Management of lumbar spinal stenosis. BMJ. 2016 Jan 4;352:h6234. doi: 10.1136/bmj.h6234. PMID: 26727925; PMCID: PMC6887476.
Chagnas MO, Poiraudeau S, Lefèvre-Colau MM, Rannou F, Nguyen C. Diagnosis and management of lumbar spinal stenosis in primary care in France: a survey of general practitioners. BMC Musculoskelet Disord. 2019 Sep 14;20(1):431. doi: 10.1186/s12891-019-2782-y. PMID: 31521138; PMCID: PMC6745066.
Webb CW, Aguirre K, Seidenberg PH. Lumbar Spinal Stenosis: Diagnosis and Management. Am Fam Physician. 2024 Apr;109(4):350-359. PMID: 38648834.
Tumko V, Kim J, Uspenskaia N, Honig S, Abel F, Lebl DR, Hotalen I, Kolisnyk S, Kochnev M, Rusakov A, Mourad R. A neural network model for detection and classification of lumbar spinal stenosis on MRI. Eur Spine J. 2024 Mar;33(3):941-948. doi: 10.1007/s00586-023-08089-2. Epub 2023 Dec 27. PMID: 38150003.
Ma XL, Zhao XW, Ma JX, Li F, Wang Y, Lu B. Effectiveness of surgery versus conservative treatment for lumbar spinal stenosis: A system review and meta-analysis of randomized controlled trials. Int J Surg. 2017 Aug;44:329-338. doi: 10.1016/j.ijsu.2017.07.032. Epub 2017 Jul 10. PMID: 28705591.
Image: https://www.southtees.nhs.uk/services/back-pain/backtracks/