Is spinal surgery a high risk surgery?

Dr Huang Yilun

Dr Huang Yilun is an experienced Orthopaedic Consultant and Spine Surgeon with over 15 years of expertise in managing complex spinal conditions. Specialising in endoscopic spine surgery and joint preservation, he trained under renowned mentors in Korea and France, and now serves as the Lead of the Endoscopic Spine Surgery Focus Group within the Singapore Spine Society.

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Table of Contents

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What is Unilateral biportal endoscopy (UBE)?

The spine looks intimidating on a scan. Nerves, discs, joints, and a lot of medical jargon. It is natural to label anything involving the spine as high risk. The honest answer is more nuanced. Spinal surgery carries real risks, but it is not automatically a high risk procedure in every situation. Risk depends on the condition, the exact operation, your overall health, and the experience of the team caring for you.

Think of risk as a spectrum. Some procedures sit on the lower end, like a single level microdiscectomy to remove a slipped disc that is pressing on one nerve root. Others are more complex, such as multi level deformity correction with fusion, where the goals, duration, and recovery are very different. The term spinal surgery covers many operations, not one.

How Spine Specialists in Singapore Think About Risk:

Spine surgeons in Singapore usually consider four main factors when assessing risk: 

Patient Factors

Age, fitness level, diabetes control, smoking, weight, bone quality, heart and lung health, and prior surgeries. Your baseline matters. A well controlled diabetic faces a different risk than someone with uncontrolled blood sugar levels. Bone strength also influences implant grip. Smoking affects wound healing.

Disease Factors

A soft herniated disc is not the same as a severe multi-level stenosis with instability. Some problems require more extensive work to decompress the nerves or stabilise the spine.

Procedural Factors

Short decompression with endoscopic or tubular approaches carries different considerations from long fusion across several levels. Blood loss potential, length of surgery, and need for implants vary.

Systemic Factors

In Singapore, surgeries take place in structured environments with anaesthesia teams, perioperative nurses, and standardised checklists. That system support reduces avoidable errors and helps with early detection of problems.

Not All Spine Procedures Carry The Same Risk:

Most people imagine all spine surgery as equally serious. In reality, the variety is wide. A microdiscectomy to relieve sciatica from a slipped disc usually involves removing only the portion of the disc pressing on the nerve. Patients often walk soon after surgery and return to daily routines relatively quickly.

A lumbar decompression for spinal stenosis may involve removing bone and ligament over several levels to relieve pressure. The goals are broader, and the planning is more detailed. A fusion procedure, used to stabilise the spine or correct deformity, is more involved again, with implants, bone healing, and rehabilitation considerations.

It helps to understand where your situation falls on this spectrum rather than assuming all spine surgery is the same.

What Complications Do People Worry About?

These are the common complications associated with undergoing spine surgeries: 

Nerve injury or Paralysis

For many common lumbar operations the chance of severe nerve injury is considered low, but not zero. Surgeons mitigate this with careful exposure, imaging guidance, and sometimes neuromonitoring.

Dural tear and spinal fluid leak

This can happen during decompression. Most are recognised and managed during surgery. Some patients may need a slightly different recovery plan if a leak occurs.

Infection

Hospitals use strict protocols and preventative measures to minimize infection risk, such as timed antibiotics, temperature control, and sterilization protocols.

Bleeding and Haematoma

Risk varies by procedure length, level of dissection, and blood thinners. Protocols are used to manage this.

Blood Clots

Mobilising early, calf exercises, and risk based prevention reduce the chance.

Non-union in Fusion Surgery

Bone needs to heal. Smoking, poor nutrition, and certain medical conditions may slow bone healing and cause non-union. Surgeons address these factors before and after surgery.

Persistent or Recurrent Symptoms

Surgery treats the pathology it targets. Some conditions can recur. Setting clear expectations helps avoid surprise.

A good discussion with one of our spine surgeons will  lay out which of these factors are relevant to you, and what will be done to lower each one.

Why Modern Spine Surgery Is Safer Than It Used To Be:

Modern practice has evolved significantly. Surgeons plan operations with high-resolution MRI and CT scans and hospitals follow surgical safety checklists and enhanced recovery pathways that encourage early walking, oral intake, and practical pain control.

In Singapore, most spine surgeons undergo subspecialty training and practise in teams that handle spine cases routinely. The combination of training, technology, and structured systems helps reduce risks. Here are more safety measures that have made modern spine surgery safer than before:

Better Planning

MRI and CT define the target. In complex cases, 3D planning is used.

Guidance in Theatre

Fluoroscopy, navigation, and neuromonitoring where appropriate have increased surgical accuracy.

Minimally Invasive Options

For selected cases, endoscopic or tubular approaches reduce soft tissue disruption. Not every case is suitable, but these options exist.

Anaesthesia Protocols

Optimised fluids, temperature management, and pain control reduce complications and nausea. Patients wake up sooner and mobilise earlier.

Enhanced Recovery After Surgery Principles

Early walking, early oral intake, and practical pain control shorten the time stuck in bed. Singapore hospitals adopt versions of these pathways.

Checklists and Time Outs

Boring but powerful. They prevent wrong level errors and missed steps.

What You Can Do To Lower Your Own Risk:

You have a role, and it is bigger than most people think.

Quit smoking

Even a few weeks helps blood flow and wound healing.

Manage your diabetes

Aim for stable sugar levels before surgery.

Sort out blood thinners

Never stop or start these on your own. Follow the plan agreed with your doctors.

Build up a conditioning routine

Gentle walking, targeted physiotherapy, and basic strength help you bounce back faster.

Get proper nutrition and sleep

Protein intake, hydration, and restful sleep support recovery.

Know your post-operative care plan

Understand wound care, red flags, and follow up schedule. Clarity reduces anxiety and delays.

How Doctors Decide If Surgery Is Sensible:

Spine surgery is usually considered when symptoms are persistent, function is affected, and imaging findings match the clinical picture. Most specialists will recommend non-surgical measures first when appropriate, such as physiotherapy, medication, activity modification, or injections. There are exceptions. Sudden severe weakness, loss of bladder or bowel control, or significant spinal cord compression often requires urgent attention. The decision is not about waiting until you cannot walk; it is about weighing symptoms, quality of life, and what the procedure can reasonably achieve.

Emergencies, on the other hand,  are different. New significant weakness, problems controlling bladder or bowel, or severe spinal cord compression can require urgent or immediate action.

What Recovery Usually Looks Like:

Recovery varies by person and procedure, but many patients have the following experiences: 

Timeframes vary. Do not measure your progress against someone else.

Frequently Asked Questions About Spinal Surgery

Recovery varies by person and procedure, but many patients have the following experiences: 

Is spinal surgery considered high risk in general?

No. It is considered complex, but not necessarily high risk. Some procedures are higher risk than others. Many are performed safely every week across Singapore.

Often yes, at least initially. Medication, physiotherapy, activity modification, and sometimes injections can help manage your symptoms. If you have progressive weakness or very severe nerve compression, the discussion changes and starts including surgical treatment options. 

Surgery aims to treat a cause. Relief can be substantial, but no ethical surgeon can guarantee zero pain. The goal is meaningful improvement in function and quality of life.

If you are unsure, yes. A clear, consistent message from two independent spine specialists builds confidence.