Spondylolisthesis Treatment: Do You Really Need Surgery?

Spondylolisthesis treatment depends on the severity of symptoms, the cause and grade of the slip, nerve involvement, age, activity level, and how well the spine responds to conservative care.

If you have been told that one of your spinal bones has “slipped,” it is completely understandable to feel worried.

Many people immediately imagine a vertebra sliding dramatically out of place, damaging the spinal cord, or requiring surgery.

The reality is usually much less frightening.

Spondylolisthesis describes forward, backward, or sometimes lateral displacement of one vertebra relative to the vertebra below it.

The amount of movement can be tiny, and the presence of a slip on an X-ray does not automatically mean that you will have severe pain or disability.

As a physiotherapist, one of the most important things I want patients to understand is this: the picture on an X-ray is only one part of the diagnosis.

How your spine moves, how your nerves are behaving, your muscle strength, your activity level, your symptoms, and the cause of the slip all matter.

Recent literature also challenges the idea that every spondylolisthesis inevitably gets worse.

A 2023 systematic review and meta-analysis found that approximately two-thirds of people with degenerative spondylolisthesis did not demonstrate radiographic progression during the follow-up periods studied. (Elsevier)

So, what actually causes one spinal bone to slip?

Let’s look at what is happening inside the spine, why different types occur at different ages, which symptoms deserve attention, and how physiotherapy can help you regain strength and confidence without unnecessarily fearing movement.

What Exactly Is Spondylolisthesis?

Your spine is made up of individual vertebrae stacked on top of one another.

Between many of these vertebrae are discs that help absorb load, while the facet joints at the back of the spine help guide and restrict movement.

Normally, these structures work together to keep each vertebra appropriately aligned.

With spondylolisthesis, one vertebra moves relative to the vertebra underneath it.

Most commonly, the movement is forward. This is called anterolisthesis.

Backward displacement is called retrolisthesis.

Importantly, “slipping” does not necessarily mean that the vertebra suddenly moved during one particular incident.

In many people, the displacement develops gradually because of stress, degeneration, altered spinal mechanics, or a defect in a small portion of the vertebra.

A recent review emphasizes that spondylolisthesis is a broad condition with different causes rather than a single disease.

The Surprising Part: A Spinal Slip Does Not Always Cause Pain

This is one of the most important facts I explain to patients.

You can have spondylolisthesis and have little or no back pain.

Conversely, someone with a relatively small slip can have substantial symptoms.

The amount of vertebral translation has only a weak relationship with symptom severity.

Researchers have repeatedly found that radiographic severity should not be interpreted in isolation.

This explains why two people with “Grade 1 spondylolisthesis” may have completely different experiences.

One person may run, lift weights and work normally.

Another may experience low back pain, buttock pain, leg symptoms, stiffness or difficulty standing for long periods.

The difference may involve nerve irritation, spinal stenosis, muscle capacity, inflammation, movement sensitivity, physical conditioning, sleep, fear of movement and several other factors.

Your X-ray is not your pain score.

What Causes Spondylolisthesis?

There isn’t one universal cause.

The major types include:

• Isthmic spondylolisthesis
• Degenerative spondylolisthesis
• Dysplastic or congenital spondylolisthesis
• Traumatic spondylolisthesis
• Pathologic spondylolisthesis
• Iatrogenic or postsurgical spondylolisthesis

Understanding the cause is crucial because the physiotherapy approach can be very different for a young athlete with a pars stress injury compared with an older adult who has degenerative changes and spinal stenosis.

Isthmic Spondylolisthesis: When the Pars Becomes the Weak Link

One of the most interesting causes is isthmic spondylolisthesis.

At the back of each lumbar vertebra is a small bony bridge called the pars interarticularis.

Repeated stress can produce a crack or stress injury in this region.

This condition is called spondylolysis.

If the pars no longer provides normal structural resistance, the vertebral body can gradually translate forward.

This is particularly relevant in children and adolescents involved in sports requiring repeated spinal extension and rotation.

Gymnastics, cricket fast bowling, football, wrestling, diving and some forms of weight training can expose the lumbar spine to repeated loading.

A 2024 radiological review explains that the pars is positioned at a mechanically demanding junction between the anterior and posterior spinal elements, making it particularly vulnerable to repetitive shear and stress. (Quantitative Imaging in Medicine and Surgery)

A Lesser-Known Fact About Isthmic Spondylolisthesis

A pars defect does not automatically mean that the vertebra will continue slipping throughout life.

A fascinating 45-year prospective follow-up study found that progression of spondylolisthesis slowed with each decade, and the researchers found no association between slip progression and low back pain. (Wolters Kluwer)

This is one reason I discourage patients from thinking, “My spine is damaged, so it will inevitably keep sliding.”

The spine is a living, adapting structure.

Degenerative Spondylolisthesis: The Disc and Facet Joints Matter

Degenerative spondylolisthesis usually develops later in adulthood.

Instead of a pars fracture being the primary problem, age-related changes in the disc, facet joints, ligaments and surrounding structures can alter how the vertebral segment moves.

A common location is L4-L5.

Interestingly, degenerative spondylolisthesis often behaves differently from isthmic spondylolisthesis.

The disc may lose height and elasticity. Facet joints can develop arthritis.

Ligaments may become thickened, and the combination can reduce the available space for nearby nerves.

Therefore, symptoms may come not only from the vertebra’s translation itself, but from spinal stenosis and nerve compression associated with degenerative changes.

A 15-year community-based cohort study found that degenerative spondylolisthesis increased in prevalence over time and identified factors including age, female sex, facet orientation and pre-existing slip in association with progression at L4. ((PMC))

Does Spondylolisthesis Always Get Worse?

No.

This is perhaps one of the most reassuring facts in the research.

A 2023 systematic review found that the proportion of patients showing progression of pre-existing degenerative spondylolisthesis ranged from 12% to 34% across studies and follow-up periods of 4 to 25 years. In other words, progression was not inevitable.

A more recent 2025 study found progression in 41.3% of its selected long-term cohort, but importantly, progression was associated with factors such as longer follow-up and smaller initial slip.

This illustrates why individual prognosis cannot be predicted simply by looking at the word “spondylolisthesis” on a report. (Science Direct)

Your Body May Actually Stabilize the Segment

Here’s a lesser-known physiological concept.

Degenerative spinal changes do not always mean endless instability.

As degeneration progresses, disc-space narrowing, osteophyte formation, facet changes and ligamentous changes may contribute to a process sometimes described as restabilization.

An older landmark study observed that progression was not seen in patients with certain degenerative changes such as disc narrowing, spur formation and subchondral sclerosis.

This does not mean degeneration is desirable.

It means that the spine can undergo structural adaptations that influence whether further translation occurs.

How Is Spondylolisthesis Graded?

Doctors commonly use the Meyerding classification.

It is based on how far one vertebra has translated relative to the vertebra below.

• Grade I: 0-25%
• Grade II: 25-50%
• Grade III: 50-75%
• Grade IV: 75-100%
• Grade V: More than 100%, also called spondyloptosis

Grade I and II are generally considered low-grade slips. (NCBI)

But here is the important clinical point:

A higher grade does not automatically equal more pain.

Recent literature suggests that slip percentage alone is insufficient for determining prognosis or treatment.

Alignment, pelvic parameters, slip angle, instability, neurological symptoms and overall clinical presentation can also matter.

What Does Spondylolisthesis Feel Like?

Some people have no symptoms at all.

When symptoms occur, they can include:

• Low back pain
• Buttock pain
• Hamstring tightness
• Pain after prolonged standing
• Pain during walking
• Stiffness
• Reduced tolerance for bending or lifting
• Leg pain
• Tingling or numbness
• Weakness
• Symptoms that worsen with prolonged standing or walking

In degenerative cases, nerve-related symptoms may become more prominent if spinal stenosis develops.

In isthmic spondylolisthesis, pain may be more closely related to the pars region, mechanical loading or nerve irritation.

This is why I don’t recommend treating “the slip” without first understanding the person’s symptoms.

Why Can the Legs Hurt When the Problem Is in the Spine?

This often confuses patients.

The nerves supplying your legs originate from the lower spinal region.

If the vertebral displacement, disc degeneration, facet enlargement or other structural changes narrow the space around a nerve root, the nerve can become irritated.

You may then experience symptoms in the buttock, thigh, calf or foot.

This can include:

Radicular pain: pain following a nerve-root distribution.

Paresthesia: tingling or pins and needles.

Numbness: reduced sensation.

Weakness: reduced ability of a muscle group to generate force.

This is one reason neurological assessment is an important part of a physiotherapy examination.

How Is Spondylolisthesis Diagnosed?

Diagnosis generally combines history, physical examination and imaging when indicated.

Standing X-Rays

Standing lateral X-rays can show vertebral translation and are particularly useful because body weight can reveal a displacement that may appear smaller when you are lying down.

Plain radiography remains an important first-line method for assessing alignment and grading.

Flexion and Extension X-Rays

In selected cases, doctors may request images while the spine is flexed and extended.

These can provide information about whether the segment demonstrates abnormal movement.

However, they should not be ordered automatically for every person with low back pain.

MRI

MRI becomes particularly useful when neurological symptoms are present or when clinicians need to evaluate discs, nerves, spinal stenosis and other soft tissues.

CT Scan

CT provides excellent visualization of bone and is particularly useful when evaluating a pars defect.

The 2024 imaging review notes that CT offers excellent visualization of the bony defect, while MRI has important advantages for assessing neural and soft-tissue structures. (PubMed)

What Does a Physiotherapist Look For?

A good physiotherapy assessment goes far beyond asking, “Where does it hurt?”

I would want to understand:

• What activities aggravate your symptoms?
• What relieves them?
• Is the pain local or traveling down the leg?
• Do you experience numbness?
• Is there weakness?
• How long can you walk?
• How long can you stand?
• How do you lift objects?
• How strong are your hips and trunk?
• How do you control your pelvis?
• Are you avoiding movement because you are afraid of damaging your spine?
• Does your symptom response change with different positions?

I also assess movement quality, neurological signs, hip mobility, trunk endurance, lower-limb strength and functional capacity.

The Goal Is Not to “Push the Vertebra Back”

This is a critical distinction.

Physiotherapy is generally not about manually forcing a vertebra into a particular position.

The goal is to improve your capacity to tolerate load and movement.

Depending on the individual, treatment may include:

• Progressive strengthening
• Trunk stabilization
• Hip strengthening
• Movement retraining
• Aerobic conditioning
• Flexibility work where appropriate
• Education
• Activity modification
• Graded return to sport
• Neural mobility when clinically appropriate
• Pain-management strategies

Does Exercise Really Help Spondylolisthesis?

Yes, exercise is an important part of conservative management for many people, but the program should be individualized.

A 2024 systematic review of randomized controlled trials included five studies involving 456 adults and found that physiotherapy interventions were associated with short-term improvements in pain and disability, although the researchers emphasized that the evidence base remains limited. (The Spine Journal)

That distinction matters.

I would never tell a patient that one particular exercise “heals” every spondylolisthesis.

Instead, exercise should be selected according to your presentation.

Stabilization Exercises: Useful, But Not the Only Answer

Lumbar stabilization exercises are frequently recommended for spondylolisthesis.

A 2020 randomized controlled trial involving people with Grade I spondylolisthesis found improvements in pain, disability, fear of movement and certain movement measures following lumbar stabilization exercise.

However, the study did not demonstrate a statistically significant reduction in slip percentage. (Wiley)

That finding is extremely useful clinically.

Exercise can make you feel and function better without physically “putting the vertebra back.”

Your objective is not necessarily to change the X-ray.

Your objective is to improve your life.

Interestingly, a 2021 randomized controlled trial involving 92 adults with degenerative spondylolisthesis found that flexion exercises produced outcomes similar to stabilization exercises for pain and disability. (Oxford Academic)

This is an excellent example of why “one exercise protocol for everyone” is not evidence-based physiotherapy.

Exercises That May Need Modification

You may not need to permanently avoid movement.

However, during an irritable phase, some activities may need temporary modification depending on your symptoms.

These can include:

• Repeated painful lumbar hyperextension
• Heavy lifting with poor trunk control
• High-volume spinal rotation under load
• Sudden increases in training volume
• High-impact activity during an acute flare
• Exercises that repeatedly reproduce radiating leg symptoms

For an adolescent with an active pars stress injury, the rehabilitation strategy can be substantially different from that of an older adult with degenerative spondylolisthesis.

The exercise itself is not automatically “bad.”

The dose, technique, timing and individual diagnosis matter.

What Should You Do If You Have Spondylolisthesis?

Keep Moving Within Your Tolerance

Complete bed rest is rarely the long-term solution for mechanical low back problems.

Your activity may need to be reduced temporarily, but prolonged inactivity can reduce muscle capacity and confidence.

Build Hip and Trunk Strength

Your lumbar spine does not work independently.

The hips, pelvis, abdominal muscles, spinal muscles and lower limbs all contribute to movement and load distribution.

Progress Gradually

One of the most overlooked problems I see is the weekend warrior effect.

Someone rests for several days, feels slightly better and then suddenly performs a long workout, heavy lifting session or intense sport.

The spine may tolerate activity, but your current capacity may not.

Increase volume progressively.

Improve Your Walking Capacity

Walking can be an excellent form of low-impact conditioning for many patients.

If standing or walking aggravates leg symptoms, however, your physiotherapist should assess whether spinal stenosis or nerve involvement is contributing.

Work on Sleep and Recovery

Pain sensitivity is influenced by more than biomechanics.

Poor sleep, stress and insufficient recovery can make symptoms harder to manage.

This does not mean your pain is psychological.

It means the nervous system and musculoskeletal system interact.

Things I Would Tell You Not to Do

Don’t Panic After Reading Your MRI

An MRI report can sound terrifying.

Terms such as “degeneration,” “stenosis,” “disc bulge” and “anterolisthesis” can create a false impression that your spine is rapidly deteriorating.

The report must be interpreted alongside your symptoms and examination.

Don’t Try to Crack or Manipulate Your Spine Aggressively

If you have known spondylolisthesis, don’t experiment with forceful spinal manipulation videos found online.

Any manual treatment should be selected after an appropriate clinical assessment.

Don’t Stop Exercising Forever

Fear can become more disabling than the original diagnosis.

The appropriate question is usually not:

“Can I exercise?”

It is:

“Which exercise, at what intensity, with what progression?”

Don’t Judge Your Recovery by Your X-Ray Alone

You can have the same radiographic slip while experiencing substantially better pain, strength and function.

That is still a successful rehabilitation outcome.

Can You Prevent Spondylolisthesis?

Not every case can be prevented.

Congenital anatomy, age-related degeneration and certain structural factors are not completely under your control.

But you can reduce modifiable risk factors and improve spinal capacity.

For athletes, this means avoiding sudden increases in training load, allowing recovery and addressing repeated painful spinal extension early.

For adults, maintaining strength, physical activity and healthy body composition can help maintain overall musculoskeletal function.

If you repeatedly experience back pain during sport, don’t simply keep playing until the pain becomes severe.

Early assessment can sometimes identify a stress-related problem before it becomes more established.

A Particularly Important Tip for Young Athletes

If a teenager repeatedly develops low back pain with running, jumping, gymnastics, cricket bowling or other extension-heavy activity, don’t automatically label it as “tight hamstrings.”

Hamstring tightness can occur as part of the body’s adaptation to altered lumbopelvic mechanics.

The 2024 imaging review describes hyperlordotic posture, hamstring contracture and pelvic adaptations in patients with spondylolysis/spondylolisthesis.

Persistent extension-related pain deserves proper assessment.

When Should You Seek Medical Attention Quickly?

Most cases do not represent an emergency.

However, seek urgent medical assessment if you develop:

• New or rapidly worsening leg weakness
• Loss of bladder or bowel control
• Numbness around the groin or saddle region
• Severe neurological symptoms
• Difficulty walking because of progressive weakness
• Severe pain following significant trauma
• Fever or systemic illness accompanied by severe spinal pain
• Unexplained weight loss with persistent spinal pain
• Severe night pain or other concerning systemic symptoms

These symptoms do not automatically mean something serious is happening, but they warrant prompt evaluation rather than self-treatment.

Does Everyone With Spondylolisthesis Need Surgery?

Absolutely not.

Many people are initially managed conservatively with education, exercise, activity modification and appropriate medical care.

Surgery may be considered when symptoms remain substantially disabling despite appropriate nonoperative treatment, or when significant neurological compromise, instability or other specific surgical indications are present.

For degenerative spondylolisthesis with associated stenosis, the SPORT research found that appropriately selected patients who underwent surgery experienced greater improvements in pain and function than those managed nonoperatively over long-term follow-up. (PMC)

This does not mean that everyone with a slip should have surgery.

It means treatment decisions should be individualized according to symptoms, neurological findings, functional limitations, imaging and response to conservative care.

My Physiotherapist’s Takeaway

If you remember only a few things from this article, remember these:

A spinal slip is not automatically a spinal disaster.

Spondylolisthesis has different causes, and understanding the cause is more useful than simply knowing the grade.

A small slip can be painful, while a larger slip can sometimes cause surprisingly few symptoms.

Progression is not inevitable.

Exercise is not your enemy. In many people, appropriately prescribed exercise is one of the most useful tools for improving strength, function and confidence.

And perhaps most importantly, you do not need to make your vertebra perfectly straight on an X-ray to have a successful recovery.

As a physiotherapist, I am much more interested in whether you can walk farther, sleep better, lift safely, return to sport, climb stairs, work comfortably and stop worrying about every movement.

That is what meaningful recovery looks like.

The Bottom Line

Spondylolisthesis occurs when one vertebra shifts relative to another, most commonly because of a pars defect, degenerative changes or other structural causes.

The condition can range from an incidental imaging finding to a significant source of back pain or nerve symptoms.

The good news is that the diagnosis does not automatically dictate your future.

A careful clinical assessment, appropriate imaging when necessary, progressive rehabilitation and sensible activity management can help many people return to a strong and active life.

If you have been diagnosed with spondylolisthesis, don’t ask only, “How much has my vertebra slipped?”

Ask the more useful question:

“What is causing my symptoms, what can I safely do now, and how can we progressively rebuild my capacity?”

That is where physiotherapy becomes much more than a collection of exercises.

It becomes a strategy for getting your movement, strength and confidence back.

This article is educational and does not replace an individual examination by a physiotherapist, physician or spine specialist. Treatment should be individualized, particularly when neurological symptoms are present.

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Medical Disclaimer!

This article has been reviewed and written under the guidance of our Head Physiotherapist, Dr. Kruti Raj (PT, MUHS,CPT,CMPT). The information shared is intended for educational purposes only and should not be considered a substitute for personalized medical advice, diagnosis, or treatment.

Please consult us or any other qualified healthcare professional before beginning any exercise program, especially if you are experiencing pain, recovering from injury, or managing a medical condition.