An MRI showing disc degeneration, a protruding or herniated disc, or narrowing of the spinal canal can make back pain feel much more serious.
But an abnormal MRI does not automatically mean that surgery is the next step.
Many people with chronic lower-back pain, disc-related pain or sciatica can be treated without surgery. Current international spine recommendations support non-surgical treatment as the first approach to lumbar disc herniation when there is no cauda equina syndrome, significant motor deficit or other serious neurological deficit.
At Centre Algos, our question is therefore not simply:
“Does this patient need an operation?”
We want to understand what is producing the symptoms, whether a nerve is involved, what is preventing recovery and which combination of treatments offers the best opportunity to reduce pain, restore function and improve the condition of the affected tissues.
Depending on the clinical picture, this can combine movement and rehabilitation with conventional medical care and percutaneous hydrotomy, including its therapeutic objectives of local tissue hydration, micronutrition and regeneration.
Back pain is more than an MRI result
Back pain can arise from several structures and mechanisms.
These can include:
muscles and connective tissues
facet joints
intervertebral discs
nerve-root irritation or compression
inflammatory changes
degenerative changes
narrowing of the spinal canal
several of these factors occurring together
The severity of pain does not always correspond directly to the amount of structural change visible on imaging.
This is particularly important when an MRI contains terms such as:
disc degeneration
disc dehydration
disc bulge
disc protrusion
disc herniation
facet-joint osteoarthritis
spinal stenosis
These findings matter, but they need to be interpreted alongside the patient’s symptoms and clinical examination.
An MRI provides valuable information, but the MRI does not make the diagnosis by itself.
The location of pain, neurological symptoms, strength, sensation, movement, functional limitations and imaging findings need to make sense together.
Explanatory diagramWhy an MRI finding does not automatically determine treatment
Step 1: MRI finding
Step 2: Symptoms, neurological examination, movement and function, clinical history
Step 3: Clinical interpretation
Step 4: Treatment strategy
Can a herniated disc improve without surgery?
Yes.
Many lumbar disc herniations improve without an operation.
The World Federation of Neurosurgical Societies recommends conservative treatment as the first-line approach when patients do not have a significant motor deficit, cauda equina syndrome or another serious neurological deficit.
Spontaneous resorption of herniated disc material can also occur.
This is important because the words “herniated disc” can create the impression that the disc has permanently broken and needs to be surgically repaired.
In reality, the situation can evolve.
Over time:
inflammation can decrease
irritated nerve tissue can settle
herniated material can reduce
movement can improve
strength can recover
pain can decrease substantially
The treatment decision should therefore depend on the whole clinical picture rather than MRI terminology alone.
What about sciatica?
Sciatica generally describes symptoms associated with irritation or compression of a nerve root in the lumbar spine.
Symptoms can include:
pain travelling from the lower back or buttock into the leg
burning or electric sensations
tingling
numbness
altered sensation
muscular weakness
A disc herniation is one possible cause, but not the only one.
The distinction between pain and progressive neurological loss is particularly important.
Severe pain does not automatically mean surgery is necessary.
Progressive weakness, significant loss of neurological function, bladder or bowel disturbance or saddle-area numbness are different situations and require prompt medical assessment.
When is surgery important?
Surgery has an important place in the treatment of spinal disease.
The goal should not be to avoid surgery regardless of the circumstances.
Current spine recommendations identify situations including:
Research comparing surgery with non-surgical care explains why the decision needs nuance.
In a Dutch randomised trial involving people with sciatica caused by lumbar disc herniation, early surgery produced faster symptom relief. Over time, however, the difference between early surgery and an initially conservative strategy became considerably smaller.
Long-term research including SPORT also shows that surgery can provide substantial benefits for appropriately selected surgical candidates with imaging-confirmed disc herniation.
The correct message is neither “avoid surgery” nor “a herniated disc needs surgery”.
It is:
Surgery can be extremely valuable when there is a clear indication. But many patients have meaningful treatment possibilities before reaching that point.
What does treatment without surgery actually involve?
“Conservative treatment” can sound passive.
It should not necessarily mean waiting several months while doing little more than taking painkillers and hoping that the problem disappears.
Depending on the individual situation, a non-surgical strategy can combine:
remaining active within appropriate limits
progressive rehabilitation
physiotherapy
rebuilding mobility and muscular capacity
adapting activities that repeatedly aggravate the problem
At Centre Algos, these approaches do not have to occur in a rigid sequence.
Movement, rehabilitation and hydrotomy can run alongside one another when clinically appropriate.
Movement remains important
Modern back-pain management generally encourages people to remain active rather than resorting to prolonged bed rest.
Rehabilitation can help restore:
mobility
muscular capacity
coordination
tolerance to mechanical load
confidence in movement
ability to work
ability to exercise or play sport
everyday function
But rehabilitation can become difficult when pain remains intense.
If someone cannot comfortably walk, bend, sleep, work or exercise because of persistent pain, improving the painful and local tissue environment can make progressive rehabilitation easier.
This is why we do not necessarily separate active rehabilitation from treatment.
Percutaneous hydrotomy for persistent back pain and disc problems
It developed from mesotherapy and uses local intradermal or subcutaneous administration of physiological solution, with therapeutic substances adapted according to the indication and treatment protocol.
A fundamental characteristic of the technique is local tissue hydration.
Unlike conventional mesotherapy using very small volumes, percutaneous hydrotomy can use considerably greater dilution and hydration volumes.
The therapeutic objectives extend beyond simply blocking the sensation of pain.
Within hydrotomy practice they include:
local extracellular hydration
improving the tissue environment
supplying therapeutic substances locally
micronutritional support where appropriate
modulation of the local inflammatory environment
supporting tissue repair and regeneration
The professional hydrotomy literature describes the technique in terms of hydration, micronutrition and regenerative treatment. In spinal degeneration, disc dehydration is also recognised as part of the pathological picture that treatment aims to address.
At Centre Algos, percutaneous hydrotomy can be considered in presentations including:
chronic lower-back pain
disc degeneration
dehydrated or degenerative discs
disc protrusion
certain disc herniations
some forms of sciatica and radicular pain
degenerative lumbar problems
certain presentations associated with spinal canal narrowing
Hydrotomy does not necessarily need to be reserved until every other option has failed.
When clinically appropriate, it can form part of the non-surgical strategy from an earlier stage alongside movement and rehabilitation.
Can percutaneous hydrotomy help rehydrate or regenerate an intervertebral disc?
Disc rehydration and tissue regeneration are genuine therapeutic objectives within percutaneous hydrotomy.
This is important because it distinguishes the therapeutic concept from approaches aimed primarily at temporarily suppressing pain.
The intervertebral disc is a highly hydrated structure.
Its nucleus pulposus contains an extracellular matrix rich in proteoglycans that attracts and retains water. This contributes to the disc’s ability to absorb and distribute mechanical load.
With disc degeneration, the composition of this matrix changes. Proteoglycan content and water-retaining capacity can decrease, while the disc progressively loses hydration, elasticity and sometimes height.
Percutaneous hydrotomy approaches the affected spinal region from a different therapeutic perspective.
Through substantial local hydration and the administration of therapeutic substances according to the protocol used, the treatment aims to improve the local tissue hydration and biological environment of affected tissues.
Within hydrotomy practice, the therapeutic aim can therefore include supporting rehydration and regenerative processes rather than treating pain alone.
Structural improvements have also been observed and reported clinically and radiologically in hydrotomy practice, including before-and-after imaging observations.
This is clinically interesting because improvement does not necessarily need to be understood solely as a reduction in pain perception. The therapeutic objective can also involve changes in the condition of the affected tissues.
At the same time, the level of evidence needs to be described accurately.
Clinical observations and individual before-and-after imaging cases are not the same as a large controlled MRI study using standardised measures such as disc height, T2 signal or validated degeneration scores.
Further controlled research can help determine:
how frequently structural improvement occurs
which types and stages of disc degeneration respond best
the magnitude of rehydration
the durability of structural changes
how imaging changes correlate with pain and function
The appropriate conclusion is therefore:
Percutaneous hydrotomy can aim to support disc rehydration and regeneration. Structural improvements have been observed and reported clinically and radiologically, while larger controlled imaging studies are still needed to quantify these effects more precisely.
What did the 2022 multicentre mesoperfusion study find?
One of the most relevant clinical studies was completed in 2022 by Dr Myriam Semani as part of the university diploma in mesotherapy at Pitié-Salpêtrière / Paris VI.
The prospective multicentre study investigated large-dilution mesotherapy using mesoperfusion in chronic low-back pain, including patients with and without sciatica.
It included 47 patients aged between 25 and 82 years, treated across centres in Paris, Nice and Luxembourg.
Their back pain had been present for an average of approximately 29 months.
Many had already received previous treatment:
92% had undergone physiotherapy
40% had received infiltration treatment
some had previously undergone surgery
Pain levels were high before treatment.
Mean pain scores were reported as:
7.8/10 at baseline
3.6/10 at day 30
2.1/10 at day 60
1.1/10 among participants with day-90 data
The study reported improvement in individual pain scores in 96% of included patients.
Functional disability also improved substantially. The median Quebec functional score decreased from 50 at baseline to 14 by the final assessment.
Analgesic use decreased during follow-up as well.
These findings are clinically important in a population whose pain had already persisted for more than two years on average.
The study was prospective and multicentre but did not have a randomised control group. Follow-up also became increasingly incomplete later in the study, particularly by day 90.
The three-month pain score should therefore be understood as the average among participants for whom three-month data were available, rather than the result of all 47 original participants.
Even with these limitations, the improvement observed in pain and function provides important clinical support for further research into large-dilution mesoperfusion and hydrotomy-related techniques.
What does broader spinal mesotherapy research show?
Percutaneous hydrotomy does not exist in scientific isolation.
It belongs to a broader family of locoregional mesotherapy techniques for which clinical research is increasing.
Across the included studies, spinal mesotherapy showed a consistent positive effect on pain and function, with no serious adverse events reported in the reviewed studies.
The review also positioned spinal mesotherapy as part of a broader strategy involving assessment, medical treatment and targeted physiotherapy.
These studies did not all investigate the exact same technique, medication, dilution or hydrotomy protocol.
They should therefore not be presented as direct trials of every form of percutaneous hydrotomy.
They are nevertheless scientifically relevant because they demonstrate that the wider therapeutic family of local spinal mesotherapy has an expanding clinical research base.
Why combine hydrotomy with rehabilitation?
Pain, tissue condition and movement influence one another.
When pain becomes severe, patients often begin avoiding movement. Muscular capacity decreases, confidence falls and everyday movements can become increasingly difficult.
Treatment that reduces pain and improves the local tissue environment can create an opportunity to move again.
Rehabilitation then helps the patient use that opportunity.
We therefore do not view hydrotomy and movement as competing approaches.
Depending on the clinical situation, they can complement each other from an early stage.
The objective is not:
hydrotomy instead of movement.
Nor is it:
exercise for months before treatment can be considered.
The objective is to combine the approaches that make sense for the individual patient and restore function as effectively as possible.
Step 2: Movement and rehabilitation, symptom management and percutaneous hydrotomy when appropriate
Step 3: Pain, function and tissue recovery
Step 4: Reassessment
What about medication and conventional spinal injections?
Medication can remain useful in back-pain management.
Depending on the clinical presentation, conventional care can include analgesics, anti-inflammatory medication or treatments aimed at neuropathic symptoms.
Certain spinal injections can also provide meaningful symptom relief in appropriate situations.
At Centre Algos, we do not define our approach by opposing conventional medicine.
The aim is to determine which treatment or combination of treatments makes sense for the individual patient.
For someone whose pain persists despite previous physiotherapy, medication or conventional infiltrations, percutaneous hydrotomy can offer another therapeutic avenue.
How Centre Algos assesses persistent back pain
We do not treat an MRI in isolation.
We treat the person.
The assessment can therefore examine:
when the symptoms began
where the pain is located
whether it travels into the buttock or leg
the nature of the pain
what aggravates or relieves it
numbness or tingling
changes in muscular strength
movement limitations
previous injuries
previous treatments and their results
medication
work and sporting demands
sleep and recovery
relevant health conditions
existing MRI, CT or X-ray findings
When neurological symptoms are present, their distribution and progression become particularly important.
Imaging can help us understand structural aspects of the problem.
But imaging and symptoms always need to be interpreted together.
What happens if percutaneous hydrotomy is considered?
When hydrotomy appears appropriate, we discuss the treatment plan with the patient.
This includes:
what appears to be contributing to the symptoms
why percutaneous hydrotomy is being considered
the objectives of treatment
whether hydration or regenerative support forms part of those objectives
how treatment can be combined with movement or rehabilitation
alternative approaches
potential risks and precautions
the anticipated treatment programme
The precise protocol depends on the condition and clinical presentation.
Treatment generally involves more than one session.
Progress can then be assessed through changes in:
pain
mobility
functional ability
neurological symptoms where relevant
tolerance to activity
sleep
return to work
return to sport
everyday function
Where clinically relevant and appropriate, structural evolution on imaging can also form part of the broader picture.
The most meaningful outcome is often not simply a lower pain score.
It is:
What can the patient do again?
When does back pain require urgent medical attention?
Most back pain is not an emergency.
Certain symptoms require prompt conventional medical assessment.
Seek urgent medical care in the presence of:
new or rapidly progressive weakness in one or both legs
loss of bladder or bowel control
difficulty urinating associated with neurological symptoms
numbness around the genitals, buttocks or saddle area
symptoms suggestive of cauda equina syndrome
severe pain following major trauma
suspected spinal infection
serious systemic illness
warning signs raising concern about cancer
Progressive neurological deficit is particularly important.
In these situations, conservative or complementary treatment should not delay specialist assessment.
The practical takeaway
A diagnosis of disc degeneration, disc dehydration, disc protrusion or even a herniated disc does not automatically mean that surgery is inevitable.
Many people have meaningful non-surgical treatment possibilities.
The important questions are:
What is producing the symptoms?
Does the MRI correspond with the clinical picture?
Is a nerve involved?
Is there a neurological problem requiring urgent treatment?
Why has recovery stalled?
Which combination of treatments offers the best opportunity to restore pain-free movement and function?
At Centre Algos, this can combine movement and rehabilitation with percutaneous hydrotomy.
Hydrotomy adds another therapeutic dimension because its objective does not have to stop at pain reduction.
Through local hydration, targeted therapeutic delivery and support of the tissue environment, it can aim to promote rehydration, recovery and regeneration of affected tissues, including degenerative spinal discs.
Clinical experience includes improvements in pain, movement and function as well as reported structural and radiological changes. Prospective mesoperfusion research and the wider spinal mesotherapy literature provide additional clinical support, while larger controlled imaging studies can help clarify and quantify regenerative effects further.
Surgery remains extremely important when there is a clear indication.
But when surgery is not required, the alternative is not simply to live with the pain.
There are other treatment possibilities.
Frequently Asked Questions
Can a herniated disc shrink naturally?
Yes. Herniated disc material can partially or substantially resorb over time. The probability depends on the type of herniation and the individual clinical situation.
Can a dehydrated spinal disc become hydrated again?
Disc hydration is dynamic. Intervertebral discs naturally gain and lose water according to loading and rest. In degeneration, their ability to retain water can become impaired. Supporting disc rehydration is one of the therapeutic objectives within percutaneous hydrotomy practice.
Can percutaneous hydrotomy regenerate a spinal disc?
Percutaneous hydrotomy can aim to support disc rehydration and regeneration by improving the local tissue hydration and therapeutic environment of affected tissues. Structural improvements have been observed and reported clinically and on follow-up imaging. Larger controlled MRI studies are still needed to establish how frequently and to what extent this occurs.
Is hydrotomy only intended to relieve pain?
No. Pain reduction is an important outcome, but hydrotomy also aims at local hydration, therapeutic delivery, micronutritional support where appropriate and improvement of the local tissue environment, including support for tissue repair and regeneration.
Can hydrotomy be used for a herniated disc?
Certain disc protrusion and herniation presentations can be considered for percutaneous hydrotomy following clinical assessment. The MRI alone does not determine whether treatment is appropriate.
Can hydrotomy help sciatica?
Hydrotomy can form part of the treatment strategy for certain disc-related or radicular presentations. Progressive weakness or symptoms suggesting cauda equina syndrome require urgent conventional medical assessment.
Can hydrotomy and physiotherapy be combined?
Yes. Treatment and rehabilitation can complement one another. Hydrotomy does not necessarily need to wait until physiotherapy has been exhausted.
What if physiotherapy or previous injections did not help?
Failure of previous treatments does not automatically mean that surgery is the only remaining possibility. The next step depends on the diagnosis, neurological findings and clinical situation. Hydrotomy can be considered as another non-surgical option where appropriate.
Does an abnormal MRI always explain my back pain?
No. Disc degeneration, bulges and protrusions can also occur in people without symptoms. MRI findings must therefore be interpreted together with symptoms and clinical examination.
When does a herniated disc require surgery?
Surgery can become particularly important when there is progressive motor weakness, cauda equina syndrome or other major neurological deficits. It can also be considered when severe disabling symptoms persist despite appropriate non-surgical treatment.
Is percutaneous hydrotomy the same as mesotherapy?
They are related but not identical. Percutaneous hydrotomy developed within the mesotherapy tradition but places particular emphasis on larger-volume dilution, hydration and locoregional delivery. Broader spinal mesotherapy research is therefore relevant supporting evidence, but does not represent a direct trial of every hydrotomy protocol.
How many hydrotomy sessions are needed?
The programme depends on the condition, chronicity, clinical findings and response to treatment. It is determined following individual assessment rather than applying one identical protocol to every patient.
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