Back Pain Doctor
Lumbar Spinal Stenosis
Written by Dr Joshua Hatch, Musculoskeletal GP, RACGP Fellow, Diploma in Musculoskeletal Medicine (FSEM UK).
Lumbar spinal stenosis is a narrowing of the space around the spinal cord and nerves in the lower back. It most often develops with age, as arthritis of the spinal joints, thickening of ligaments and the settling of worn discs gradually crowd the space available for the nerves. The result is often back pain together with aching, burning or heaviness in the legs.
A characteristic feature is that symptoms are posture-dependent: standing tall and walking tend to bring them on, while leaning forward or sitting eases them. Many people notice their walking distance is limited, but that they can manage tasks that involve bending forward, such as pushing a trolley, more comfortably.
Our role is to assess your symptoms, confirm the pattern and check for anything that needs further investigation, then help you with a practical plan. The focus is on keeping you as active and comfortable as possible — through movement, physiotherapy and pain management — and being clear about the point at which a surgical opinion becomes worthwhile.
Common symptoms
- Aching or burning pain in the buttocks or legs, often brought on by walking or standing
- Relief of leg symptoms when leaning forward or sitting down
- Numbness, tingling or heaviness in the legs with activity
- Reduced walking distance before symptoms build up
Commonly seen in
Evidence for twelve treatment options in lumbar spinal stenosis
This is not a fixed ladder or a package of treatments. Every option is assessed independently against this diagnosis, including treatments with limited direct research that may still be reasonable for a clearly defined tissue target. The evidence level, likely benefit, risks, cost and alternatives are weighed at consultation.
Foundation — diagnosis, education and rehabilitation
The part of care with the broadest relevance. For many people it is enough on its own; other options are judged against it, not automatically added after it.
Diagnosis, education and progressive rehabilitation Working out what is driving the pain, explaining what your imaging does and does not mean, and building a graded loading plan you can actually follow. Core care
What it involves
Assessment to identify the likely pain source, an explanation of what the diagnosis means, adjustment of the loads that aggravate it, and a progressive strength and conditioning plan — with weight management where that is clinically relevant.
What the evidence shows
Every high-quality guideline says the same thing. The American College of Physicians makes a strong recommendation that chronic low back pain be treated first with exercise and multidisciplinary rehabilitation rather than drugs or procedures (Qaseem, Ann Intern Med 2017). An overview of 15 primary-care guidelines found consistent agreement on education, staying active, exercise and reassurance, and on discouraging routine imaging (Oliveira, Eur Spine J 2018). For neck pain the strongest effects also belong to exercise, with strengthening of the neck and upper quadrant showing a moderate short-term effect (Sterling, J Clin Med 2019). Adding pain-science education to exercise improves pain, disability and fear of movement over exercise alone (Bonatesta, J Pain 2021).
Pairing reviewed 2026-09-02.
Where it fits for you
Understanding why the back hurts, and moving well, does more than anything injected. Imaging is used to answer a specific question, not as a starting point — degenerative findings are near universal and frequently unrelated to the pain.
Muscle and symptom-modifying options
Useful only when the examination identifies the tissue they target or when short-term pain control creates a useful rehabilitation window.
Wet needling and trigger point injection (trigger point injection) A fine needle into a tender band of muscle, with a small volume of dilute glucose solution injected through it. Worth discussing
What it involves
The needle is placed into the tender muscle band and a small volume of 5% glucose with 0.02-0.08% lignocaine is injected. Often done in the same visit as your assessment, and usable where the tender area sits deeper. Dry needling — the same technique with nothing injected — is not offered here.
What the evidence shows
Needling has been tested directly in this condition. A multicentre randomised trial of 128 people with lumbar spinal stenosis found electrical dry needling and spinal manipulation added to standard physiotherapy gave greater improvement in back, buttock and leg pain and in disability at three months, with medium effect sizes, although no difference at two or six weeks (Young, Spine J 2023). In 99 people with residual pain after decompression surgery, lignocaine trigger point injections reduced pain considerably more than drug treatment alone and held that gain at two months, but that study was not randomised (Al-Zamil, J Clin Med 2024).
Pairing reviewed 2026-09-07.
Where it fits for you
Aimed at the tender paraspinal and gluteal muscle that accumulates when walking distance falls, as an adjunct to the flexion-biased loading programme. It does not open a narrowed canal.
Ultrasound-guided injections Guidance means we can see the needle reach the target. What goes into the needle depends on the diagnosis. Little effect on pain
What it involves
The injection is performed under ultrasound so the needle can be watched into the target structure. What is injected is decided by the diagnosis — and corticosteroid is used sparingly, for the reasons set out below.
What the evidence shows
Tested, and the answer splits by outcome. The American Academy of Neurology review found that in lumbar spinal stenosis epidural corticosteroid injection possibly reduces disability in the short term (success rate difference -26.2%, 95% CI -52.4 to 3.6) and in the long term (-11.8%, -26.9 to 3.8), but does not reduce short-term pain (-3.5%, -12.6 to 5.6), with too little evidence to judge long-term pain (Armon, Neurology 2025). A meta-analysis of ten randomised trials in 1,010 people found only limited short- and long-term benefit, and minimal evidence that adding steroid beat local anaesthetic alone (Liu, Drug Des Devel Ther 2015). A review of the condition concludes plainly that long-term benefit from these injections has not been demonstrated (Katz, JAMA 2022). All of this is epidural injection under X-ray or CT rather than ultrasound.
Pairing reviewed 2026-09-17.
Where it fits for you
Not performed here, and not something to plan around. Where walking distance is the problem, the evidence sits with conditioning, flexion-based exercise and weight management, and with a surgical opinion if those fail. An epidural is a referral question worth asking where a specific nerve root is implicated and pain is blocking rehabilitation. See the note on cortisone.
V-ACTOR vibration therapy (vibration therapy) Low-frequency vibration applied over tender muscle. Not a shockwave, despite sharing the machine. Plausible — no studies
What it involves
A vibration handpiece is moved over the tender muscle and fascia for a few minutes. It runs from the same STORZ MASTERPULS icon console as radial shockwave but is a separate handpiece delivering a different, gentler form of energy. No needles, no anaesthetic, no downtime.
What the evidence shows
No published clinical trial of this device in this condition. It is a vibration handpiece delivered from the same console as radial shockwave, and the rationale is myofascial rather than tendon- or bone-directed.
Pairing reviewed 2026-08-30.
Where it fits for you
A comfort measure used within a session where muscular tightness is limiting movement. Never the reason for the appointment, and not a substitute for the treatments that do have evidence.
Energy-based treatment options
Radial pressure wave, focused shockwave and EMTT have different targets and different evidence. They are assessed separately rather than treated as one category.
Radial or focused shockwave? Read the overviewRadial shockwave (radial pressure wave) Broad treatment across tender muscle and fascia, close to the surface. Only if relevant
What it involves
A handpiece is moved over the tender tissue while ballistic pressure pulses are delivered, using a transmitter head chosen for the tissue — including heads shaped for fascia and for the muscle either side of the spine. The pulse is strongest at the skin and weakens with depth, so this is mainly a myofascial treatment, though it can reach deeper in some areas. No anaesthetic, no downtime, usually a course of sessions about a week apart.
What the evidence shows
Shockwave reviews in myofascial pain report a possible benefit but mix protocols and often mix radial pressure wave with focused shockwave; that evidence cannot be transferred to the underlying diagnosis. Condition reviewed: lumbar spinal stenosis.
Evidence source: Wu et al., shockwave for myofascial pain review (2022)
Pairing reviewed 2026-08-30.
Where it fits for you
For lumbar spinal stenosis, radial pressure wave may be considered for a distinct superficial muscle or fascial component. It is not used as evidence of benefit for the primary diagnosis.
Focused shockwave (ESWT) A true shock wave converging at depth — for tendon, joint, ligament and bone. Only if relevant
What it involves
A focused system generates an acoustic shock wave that converges at a focal point set at a defined depth, concentrating the energy where the target is. This is the form we use for tendon, joint, ligament and bone. Typically four to six sessions about a week apart, no anaesthetic and no formal downtime.
What the evidence shows
Focused shockwave is not aimed at a disc, a facet joint or a nerve root, and there is no trial evidence for it in these conditions.
Pairing reviewed 2026-08-30.
Where it fits for you
Considered only where examination finds a separate tender muscle or tendon contributing to the pain.
EMTT (magnetotransduction therapy) High-energy magnetic pulses applied over the area. Painless, no contact. Plausible — no studies
What it involves
You sit with the applicator positioned over the area for a short session. Painless, no gel or contact required, and usually delivered as a course — commonly alongside shockwave.
What the evidence shows
There are no published randomised trials of EMTT in this condition, or in any musculoskeletal condition, that we can point to. The supporting work is laboratory work: EMTT increased tenocyte proliferation, migration and collagen expression in cultured human tendon cells (Mancini, Int J Mol Sci 2025). The nearest human evidence for a related electromagnetic therapy is negative — a randomised trial of pulsed electromagnetic field therapy added to eccentric exercise for Achilles tendinopathy found no improvement in outcome scores or tendon neovascularity over eccentric exercise alone (Ko, Orthop J Sports Med 2024).
Pairing reviewed 2026-08-30.
Where it fits for you
Offered only as an adjunct alongside treatment that does have evidence, never as the plan itself, and only after that gap is explained. Much of the EMTT literature is manufacturer-affiliated, which is part of why we describe it this way.
Biologic and joint injection options
Each injection is assessed independently for the named diagnosis. Cost, uncertainty, likely benefit, risks and alternatives are part of the decision.
Platelet-rich plasma (PRP) Your own blood, concentrated and injected under ultrasound guidance. Plausible — no studies
What it involves
Blood is taken from your arm, spun to concentrate the platelets, and injected into the target under ultrasound guidance in the same appointment.
What the evidence shows
We searched for platelet-rich plasma in lumbar spinal stenosis and found no randomised trial of it as a treatment injection. What the search returned was two different things: platelet-rich plasma added to bone graft during lumbar fusion surgery in 40 older patients (Wang, Int Orthop 2024), and one clinic's retrospective records in which 37 stenosis patients were rated on a satisfaction scale with no comparison group (Godek, Ortop Traumatol Rehabil 2022).
Pairing reviewed 2026-09-03.
Where it fits for you
Plausible on mechanism is not the same as tested, and stenosis is a narrowed canal — an injection does not widen it. Walking tolerance, conditioning and load management are where the effort belongs, with a surgical opinion if leg symptoms are limiting or progressive.
Prolotherapy (dextrose) A course of dextrose injections into and around the structure and its attachments. Evidence mixed
What it involves
Hypertonic dextrose is injected at the tender ligament and tendon attachments, and into the joint where relevant, usually as a series of treatments a few weeks apart.
What the evidence shows
One comparative study in 211 older adults with lumbar spinal stenosis found 5% dextrose injected into multifidus improved back pain, leg pain and walking distance at one and three months, but the authors described the effect as moderate and lasting only about three months, and it was consistently smaller than the comparison treatment at one, three and six months (Chen and Suputtitada, J Pain Res 2023).
Pairing reviewed 2026-09-05.
Where it fits for you
Does not widen the canal and does not change the walking limit that comes from the narrowing. Occasionally considered for the muscle and ligament pain sitting alongside stenosis, with the short duration of benefit made clear first.
Viscosupplementation (hyaluronic acid) A gel-like injection into an arthritic joint. Widely used, and genuinely contested. Not used here
What it involves
One or a short series of hyaluronic acid injections into the joint under ultrasound guidance.
What the evidence shows
The one randomised trial of hyaluronic acid in lumbar spinal stenosis did not lubricate a joint. Forty-four people with leg pain had a selective nerve root block containing either cortisone or a sodium hyaluronate and carboxymethylcellulose solution, and the two were no different on pain, disability or quality of life out to twelve weeks, with the gap between them staying inside what a patient could notice (Ko, Pain Pract 2021). That is an injection placed around a nerve root, which belongs to the guided-injection row rather than this one. No trial has injected hyaluronic acid into a spinal joint for stenosis.
Pairing reviewed 2026-09-20.
Where it fits for you
Not offered for this problem. The narrowing that causes the symptoms is bone and ligament, which an injection into a joint does not alter.
Nerve-targeted options
Relevant when examination identifies a superficial neuropathic pattern or a compressed peripheral nerve—not simply because pain is present.
Lyftogt perineural therapy (perineural injection therapy) A series of small dilute dextrose injections just under the skin, over tender superficial nerves. Only if relevant
What it involves
Small injections of low-concentration dextrose, usually 5%, placed just beneath the skin along tender superficial nerves. Given as a series of short sessions.
What the evidence shows
The dextrose nerve evidence is in peripheral entrapment — carpal tunnel and cubital tunnel — not in nerve root compression from the spine.
Pairing reviewed 2026-08-30.
Where it fits for you
Not a treatment for a compressed nerve root. Considered only where a separate peripheral entrapment is also present.
Ultrasound-guided nerve hydrodissection Fluid placed around a nerve to free it from the surrounding tissue. Only if relevant
What it involves
Under ultrasound, fluid is placed in the plane around the nerve to separate it from the tissue that is tethering or compressing it.
What the evidence shows
The dextrose nerve evidence is in peripheral entrapment — carpal tunnel and cubital tunnel — not in nerve root compression from the spine.
Pairing reviewed 2026-08-30.
Where it fits for you
Not a treatment for a compressed nerve root. Considered only where a separate peripheral entrapment is also present.
This is general information only and suitability is assessed individually. Treatments with limited or condition-dependent evidence may still be discussed, but only with clear explanation of the uncertainty, the expected benefit, risks, cost and alternatives. Red flags, progressive neurological symptoms or suspected serious pathology require a different pathway.
Every treatment above is described in full on the non-surgical treatments page, including what each one is used for and what the evidence supports. Ratings apply to the named diagnosis; an adjacent muscle, tendon, joint or nerve problem is assessed as a separate target. The method behind the ratings, and the treatments we do not offer, are set out on the evidence page.
Corticosteroid injection is reviewed separately for each diagnosis.
Cortisone reliably reduces pain in the short term, and that can be genuinely useful when pain is stopping you sleeping or moving enough to rehabilitate. Beyond that window the picture changes. A systematic review of 41 randomised trials and 2,672 participants found that corticosteroid injection reduced pain in the short term but that the effect reversed at intermediate and long term; in pooled analysis for lateral epicondylalgia the short-term effect was large (SMD 1.44, 95% CI 1.17 to 1.71) while no intervention was favoured at 26 weeks (-0.40, -0.67 to -0.14) and at 52 weeks (-0.31, -0.61 to -0.01) (Coombes, Lancet 2010). In a randomised trial in lateral epicondylalgia, 83 per cent of the corticosteroid group had completely recovered or much improved at one year against 96 per cent given a placebo injection, and recurrence ran at 54 per cent against 12 per cent; adding physiotherapy made no significant difference at one year (Coombes, JAMA 2013). In joints, repeated corticosteroid injections have been associated with cartilage loss. It does not repair anything.
So we do not build treatment plans around it. Where an injection is the right call, we review the specific diagnosis and target, discuss what is being injected and why, keep the number low, and pair it with the loading work that changes the longer-term course.
When we would still consider it
- Pain severe enough to block rehabilitation
- A clear inflammatory or bursal target on imaging
- A specific short-term goal — a trip, a procedure, a return to work
- Diagnostic use, where the response tells us where the pain is coming from
When a cortisone injection is worth doing, and when it is not
Other back conditions
Pain in the same area can come from more than one source, and the label matters less than what the examination and history point to. These are the other guides for this region.
Frequently asked questions
Why do my legs feel better when I lean forward?
Can non-surgical treatment help?
When is surgery considered?
Ready for a clearer plan for your back or musculoskeletal pain?
Book an assessment with Dr Joshua Hatch.
Your assessment focuses on understanding the likely source of your pain and the most appropriate non-surgical options for your diagnosis, with the aim of reducing pain and improving function.
Book an appointment