Spinal Tumor Surgery

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Send the imaging and get a spinal oncology opinion before anything is booked

The review costs nothing and commits you to nothing. Send the spine MRI images with the radiologist's report, any CT or PET scan, the pathology report if a biopsy has been done, the name of the primary cancer and the treatments given for it so far, and a note of any weakness, numbness or change in bladder or bowel control. A spinal surgeon reads it alongside the oncology team and tells you whether an operation would help, what it would be for, and how quickly it needs to happen.

Where it sits decides everything

Spinal tumours get classified by their relationship to one membrane. A tough sleeve of tissue called the dura wraps around the spinal cord and the nerve roots, and whether a tumour lies outside it, inside it but outside the cord, or within the substance of the cord itself changes the diagnosis, the operation, the risk and the outlook more than the tumour's size or its position up and down the spine ever will.

Three compartments. Three very different conversations.

Drag or swipe the table below to reach every column on a narrow screen.

Primary tumours of the spinal column form a separate group that started in the bone itself, meaning of the spinal column such as chordoma, chondrosarcoma, osteosarcoma and giant cell tumour. Those follow rules of their own, covered further down, and they are the group where the first operation matters most.

The symptoms that stop being a waiting game

Back pain starts nearly all of this, and the pattern that raises suspicion has a particular character. It wakes people at night. It persists lying down, where mechanical back pain would ease. It has been building over weeks rather than arriving after lifting something, and in somebody with a known cancer it deserves an MRI, and not a course of physiotherapy.

Pain gives the warning. What follows the warning is the emergency.

That urgency has a mechanical and unforgiving reason behind it. A compressed spinal cord loses its blood supply, and the function it loses while compressed is the function it is likely to keep having lost, and the single strongest predictor of walking after treatment turns out to be whether the patient could walk before it. Steroids go in immediately to reduce swelling and buy time. Imaging follows within hours. Then the surgical decision. Everything in that sequence is designed around one fact, which is that a spinal cord tolerates pressure badly and tolerates it for a shorter time than most people expect, so a patient who notices their legs feeling heavy on Friday evening and decides to see how the weekend goes is making a decision with consequences that no operation on Monday can fully undo.

Nobody should be emailing scans and waiting for a reply while this is happening. Cord compression is treated where the patient is standing, and a patient in that situation who is offered a consultation next Tuesday has been given the wrong advice.

The trial that settled the argument

For decades the standard treatment for a cancer deposit pressing on the spinal cord was steroids and radiotherapy, with surgery held back for a few. One randomised trial changed that, and its numbers are worth knowing because they are the reason surgery is offered at all in this situation.

Published in The Lancet in 2005, it randomised 101 patients with spinal cord compression from metastatic cancer to either direct decompressive surgery followed by radiotherapy, or to the same radiotherapy alone. An interim analysis stopped it early because the difference was too large to keep randomising people. Eighty-four percent of the surgical group could walk after treatment against 57 percent of the radiotherapy group, an odds ratio of 6.2 with a confidence interval running from 2.0 to 19.8. Those who could walk kept walking for a median of 122 days against 13. Among the 32 patients who entered the trial already unable to walk, 10 of 16 in the surgical arm regained the ability against 3 of 16 in the radiotherapy arm. Steroid and opioid requirements fell in the surgical group as well.

Read the second and third figures again. They carry the argument. This operation buys months of walking, and it gives a patient who has already lost the ability a realistic chance of getting it back, at a point in an illness when independence is close to the only currency left.

So the position is clear, and it can be stated without hedging. A patient with a solid tumour compressing the cord, a reasonable life expectancy and a body that can tolerate an anaesthetic should be assessed by a spinal surgeon rather than sent straight to radiotherapy.

Two limits sit alongside that. The trial excluded patients with very short expected survival and those with certain radiosensitive tumours such as lymphoma and myeloma, where radiotherapy works quickly and surgery frequently adds nothing. And a patient whose disease is widespread, whose performance status is poor, and for whom recovery from a spinal operation would consume the time they have left, is better served by radiotherapy, good pain control and being at home. A surgeon who says that to a family is doing the harder and more useful thing.

Separation surgery and radiosurgery

Spinal oncology has moved on since 2005, and the modern operation for a metastatic deposit is smaller than the one the trial tested.

Surgeons call it separation surgery, and the reasoning behind it repays a minute of attention. Stereotactic body radiotherapy can deliver a very high, very precisely shaped dose to a tumour, including tumours that ordinary radiotherapy barely touches, such as kidney cancer, melanoma and sarcoma. What it cannot do is deliver that dose when the tumour is pressed against the spinal cord, because the cord tolerates far less radiation than the tumour needs, and the gap between those two tolerances is measured in millimetres. So the surgeon no longer tries to remove the whole deposit. The surgeon removes just enough to create a two or three millimetre gap between the tumour and the cord, stabilises the spine with screws if the bone needs it, and hands the rest to the radiation oncologist, who can now treat the tumour properly without irradiating the cord. Shorter operation, less blood loss, faster return to systemic cancer treatment, and a better chance that the deposit stays controlled for the rest of the patient's life.

Less surgery. Better cancer control. That is a genuinely good trade rather than a marketing one.

Published in 2022, a phase 2 trial followed 33 patients treated this way, 70 percent of whom had tumours classed as radioresistant and most of whom had high-grade compression at the outset. Three months after treatment, 90 percent had their compression reduced to the lowest grades. Local failure at twelve months was 13 percent. Twenty patients were walking normally or with a stick a year later. Radiation myelopathy, the complication everybody worries about, occurred in none of them, while one patient developed radiculopathy and six developed a vertebral compression fracture.

Retrospective work in harder groups points the same way. A series of 50 patients with colorectal spinal metastases treated with surgery followed by radiosurgery reported 86.7 percent local control at two years, with complications in 16 percent and intervention needed in 6 percent, in a cancer widely regarded as difficult to control in the spine.

One practical consequence matters for anybody planning treatment across borders. This approach only works when the surgery and the radiosurgery are planned together by people who talk to each other, with the radiation planned around what the surgeon actually did and delivered within a few weeks of it. Splitting the two across two countries is how the benefit gets lost.

Tumours inside the dura

News improves considerably here, and patients arriving at this section after reading about metastatic disease should know they have moved to a different illness.

Outside the cord, inside the dura

Meningiomas and nerve sheath tumours sit in the space between the dura and the cord, pushing the cord aside as they grow instead of invading it, and almost all of them are benign. That growth pattern is what makes them surgically favourable, because a plane exists between tumour and cord, and a surgeon working under a microscope can develop that plane and lift the tumour out whole. Removal is complete in the great majority. Complete removal ends the story. Symptoms that have been building for months, and sometimes for years, frequently improve substantially once the pressure comes off, though sensation and balance recover more slowly than power does.

These are the operations where a spinal surgeon gets to give unambiguously good news, and they are worth diagnosing early, since function that has been lost for a long time comes back less completely than function lost recently.

Inside the cord

Intramedullary tumours present the real difficulty. Reaching them means opening the back of the spinal cord along the midline, and no surgeon does that without accepting that some sensory or balance disturbance is likely afterwards. Ependymomas typically have a plane against the surrounding cord and can often be removed completely. Astrocytomas frequently do not, and the operation there becomes a matter of taking what can be taken and leaving what cannot, with radiotherapy or oncological treatment for the remainder.

Continuous neurophysiological monitoring runs throughout. It tracks motor and sensory signals in the cord, so the surgeon knows within seconds if a manoeuvre is costing function. Do not consider having this operation anywhere that does not use it.

Recovery from intramedullary surgery runs to months and depends heavily on the state the patient was in beforehand, which is the recurring theme of this whole subject.

Primary bone tumours, one chance to get it right

Chordoma, chondrosarcoma, osteosarcoma and a handful of others begin in the bone of the spine itself. Different rules apply to all of them.

This one rule matters more than the rest. For these tumours the aim is removal in one piece with a margin of normal tissue around it, an operation called en bloc resection, and the first attempt is the one that determines the outcome. A tumour that has been cut into, biopsied through the wrong track, or removed piecemeal seeds the surgical field with cells, and no subsequent operation reliably undoes that. Chordoma in particular resists radiotherapy and chemotherapy, so the surgery is the treatment.

That turns the biopsy into part of the operation instead of a step before it.

A needle biopsy for a suspected primary spinal tumour should be planned by the surgeon who would perform the resection, along a track that can be excised with the tumour later. Getting that wrong at a local hospital, in good faith, before anybody suspected a primary bone tumour, is one of the commonest ways a curable tumour becomes an incurable one, and it happens quietly, months before anybody realises what the biopsy track cost. Anybody whose imaging raises the possibility of a primary bone tumour should reach a specialist spinal oncology unit before a needle goes in, and say so to whoever is arranging the tests. The clue on the scan tends to be a lesion in somebody with no known cancer, or a pattern of bone destruction and soft tissue mass that does not fit a secondary deposit. A radiologist who raises that possibility in the report has done the patient an enormous favour. Take that report seriously enough to make a phone call before the next appointment.

How the decision is actually made

Four questions run through every spinal oncology meeting, and a patient who knows them can follow their own discussion instead of watching it happen.

On a phone this table moves sideways under your finger. Every column is there.

The stability question has a published scoring system behind it, developed by the Spine Oncology Study Group in 2010, which turns those bone and alignment findings into a number and tells an oncologist when to pick up the phone to a surgeon. It explains why a patient with a painful vertebral deposit and no weakness at all can still need an operation, since a vertebra about to collapse is a problem radiotherapy cannot fix.

Afterwards, and what the operation was for

Recovery varies with the operation, and describing it by what the surgery set out to achieve keeps it honest.

After separation surgery or a decompression and stabilisation for metastatic disease, patients get up with a physiotherapist within a day or two and out of hospital within three to seven days. Pain from the tumour frequently improves quickly. That alone changes a patient's week, and for somebody who has been unable to lie flat or sit through a meal for a month it changes considerably more than a week. Radiotherapy follows a few weeks later once the wound has healed, and the timing there is a real constraint rather than an administrative one, since irradiating a fresh wound causes problems of its own while waiting too long lets the tumour regrow into the gap the surgeon created. Neurological recovery, where it happens, unfolds over weeks to months and follows the rule stated earlier, meaning function that was intact beforehand is very likely to be kept and function already lost is a harder thing to recover.

After removal of a benign intradural tumour the picture changes and turns optimistic. Two to four nights in hospital. Walking early. Weeks of graded rehabilitation for balance and strength, with the balance work mattering more than patients expect, since a cord that has been squashed for a year takes time to relearn where the feet are even after the pressure has gone. Follow-up scans at intervals for years afterwards, because a small proportion of these tumours return and finding one early is straightforward. Patients in this group frequently describe the recovery as the least difficult part of the whole episode, the hard part having been the months of unexplained symptoms and the fortnight between the scan and the diagnosis.

After intramedullary surgery, expect a slower and more variable course, with inpatient rehabilitation frequently part of the plan and improvement continuing for six to twelve months.

Something runs through all three. Rehabilitation delivers a large part of the result. Good units start it in the first days, and weaker ones start it in the first weeks.

Coming from another country

Two rules govern this, and the first one overrides everything else on the page.

Acute cord compression gets treated locally. Immediately. A patient losing power in their legs should be in the nearest hospital that can operate. Any clinic that encourages a flight instead is putting a booking ahead of a spinal cord. Travel belongs to the situations that allow planning, meaning a stable metastatic deposit needing separation surgery, a benign intradural tumour causing gradual symptoms, or a primary bone tumour requiring a specialist resection.

Rule two concerns who decides. Spinal oncology is a committee sport, and a plan for a spinal tumour should come out of a discussion involving the spinal surgeon, a radiation oncologist and a medical oncologist, with the pathology in front of them. Ask specifically whether such a meeting sits behind the recommendation you have been given, because a surgical opinion offered without an oncologist in the room is half an opinion. Bureaucracy has nothing to do with it. Whether a tumour melts under radiotherapy, whether a new systemic drug has just become available for that histology, whether the disease elsewhere in the body is stable or advancing, and how long the patient is likely to live are all questions a surgeon cannot answer alone, and every one of them changes whether an operation is the right idea. Units that treat spinal tumours properly hold that meeting weekly and put its conclusion in writing.

What to send, and what to bring

Start with the spine MRI, sent as images and not only as a report, since a radiologist reading the file sees what a written summary leaves out. Add whole-body staging imaging if it exists, the pathology report and the block or slides if a biopsy has been done, the oncology treatment history including every drug and every line, recent blood results, and a current medication list with any blood thinner clearly marked.

Bring somebody with you. Travelling alone for this is a mistake.

Timing, staying and going home

Ten to twenty-one days in the country covers most planned spinal tumour surgery, and the width of that range reflects how differently these operations behave, from a two-hour intradural resection with an early discharge to a multi-level reconstruction that needs a fortnight before anybody discusses an aeroplane. Radiotherapy afterwards extends it further where the plan includes radiosurgery locally. Ask early where the radiotherapy will be delivered, at the surgical hospital or at home. That answer changes the length of the trip completely. It also changes who is coordinating the treatment.

Flying carries two clot risks stacked on each other, the usual one and the higher baseline that cancer itself brings, so clot prevention, compression stockings, an aisle seat and standing every half hour apply with more force here than after routine spinal surgery.

Once you are back home the follow-up belongs to your own oncology team, with the surgical unit available for questions about the wound and the metalwork. Ask before you fly for a named contact and a route that works out of hours, and agree who is ordering the first surveillance scan so that it does not fall between two teams in two countries.

Leave with the operation note naming the levels and what was done, the full histopathology report, the implant details where metalwork went in, the post-operative imaging, and a written statement of what radiotherapy or systemic treatment is recommended next and when it should start. Give the last of those to your oncologist at home on the first appointment, since continuity between the two teams is the whole point of the paperwork.

What moves the quotation

Which operation is planned dominates everything, since a separation surgery, an intradural tumour removal and an en bloc resection of a primary bone tumour are three different undertakings. After that come the number of levels involved, whether instrumentation is needed and how much, the length of the procedure, intensive care nights, neurophysiological monitoring, whether radiotherapy or radiosurgery is included, and the pathology work. Patient factors move it again through fitness, nutrition, blood counts and previous treatment.

Three items sit outside the surgical figure more often than families expect, namely the pathology, the radiotherapy and the first follow-up scan. Check each one.

No figure means anything until a surgeon and an oncologist have read the file together.

Frequently asked questions