
Dr Thor Timothy
MBBS (Singapore), M.Med (Anaesthesiology), FIPP (USA), FFPMANZCA (Australia and New Zealand), EDPM (Europe)
Have you ever noticed a persistent ache in your lower back that refuses to go away, no matter how much you rest or stretch? Many people experience this type of discomfort at some point in their lives. Long hours at a desk, commuting and the physical demands of daily routines can gradually place pressure on the spine. Over time, this strain may affect the spinal discs and lead to ongoing back pain.
When conservative treatments such as medication or physiotherapy do not bring lasting relief, it can feel discouraging. Fortunately, advances in pain medicine now offer minimally invasive procedures designed to target the source of discomfort. One such option is annuloplasty, a treatment used to address certain types of disc-related pain without major surgery.
Understanding Disc-Related Back Pain
To appreciate how annuloplasty works, it helps to first understand the role of spinal discs. These discs sit between each vertebra and function as cushions that absorb shock while supporting movement. They allow the spine to bend, twist and remain flexible throughout daily activities.
The Structure of a Spinal Disc
Each disc has two main components. The outer layer is known as the annulus, which is a tough ring of fibrous tissue. Inside this ring lies a softer centre called the nucleus. The annulus helps contain the nucleus while maintaining the disc’s shape and stability. When the outer layer becomes damaged, however, the disc may lose its structural integrity.
How Disc Damage Causes Pain
Over time, factors such as ageing, repetitive strain or injury can lead to small tears in the annulus. These tears may allow the inner disc material to bulge outward or place pressure on nearby nerves.
When this occurs, you may experience symptoms such as:
- Persistent lower back pain
- Pain that radiates to the buttocks or legs
- Discomfort when sitting for long periods
- Increased pain during bending or lifting
When symptoms continue despite conservative care, minimally invasive procedures like annuloplasty may be considered.
What Is Annuloplasty?
Annuloplasty is a minimally invasive procedure designed to treat pain caused by tears in the outer portion of a spinal disc.
How the Procedure Works
During the treatment, a doctor carefully inserts a thin needle into the affected disc using imaging guidance such as fluoroscopy. This allows the specialist to position the instrument accurately. A specialised probe is then introduced through the needle. This device delivers controlled radiofrequency energy to the damaged section of the annulus.
The Goal of Annuloplasty
The radiofrequency energy gently heats the surrounding tissue. This process may help seal small tears within the annulus and reduce irritation affecting nearby nerves. By stabilising the injured area and calming sensitive nerve fibres, the procedure can help reduce pain originating from the damaged disc.
Because annuloplasty targets a very specific area and requires only a small entry point through the skin, it is considered far less invasive than traditional spinal surgery.

Who May Be Suitable for Annuloplasty?
Annuloplasty is not intended for every type of back problem. Patients who may benefit from the procedure often share certain characteristics. These may include:
- Ongoing lower back pain that has lasted several months
- Symptoms that have not improved with physiotherapy or medication
- MRI scans showing disc degeneration or annular tears
- Pain that worsens when sitting or bending forward
What Happens During the Procedure
Annuloplasty is typically performed as a day procedure in a clinical setting.
Preparation Before the Procedure
Annuloplasty is usually performed under local anaesthesia together with light sedation. This helps you remain comfortable while still being awake during the treatment. In some cases, being awake allows the doctor to check your response and ensure the procedure is targeting the correct area of discomfort.
Because the procedure is minimally invasive, large incisions or general anaesthesia are typically not required.
Needle Placement with Imaging Guidance
To begin the procedure, the doctor uses fluoroscopy, a form of real time X-ray imaging, to guide a thin needle precisely into the affected spinal disc. This imaging technology helps ensure the instruments reach the correct location while minimising disruption to surrounding tissues.
Accurate placement is important because the treatment needs to target the damaged section of the disc where the annular tear is located.
Thermal Treatment of the Disc
Once the needle is positioned, a specialised probe or catheter is inserted through it. This device delivers controlled radiofrequency heat to the outer portion of the disc. The heat works in several ways. It causes collagen fibres within the annulus fibrosus to shrink and tighten, which can help seal small tears in the disc wall. At the same time, the treatment can reduce inflammation and cauterise tiny nerve endings that transmit pain signals. The entire process is typically completed in less than an hour.
Recovery After Annuloplasty
After the procedure, you will spend a short period in a recovery area where medical staff can monitor you before you return home on the same day. While annuloplasty is intended to reduce pain over time, some people may notice temporary soreness or increased discomfort during the first week as the disc begins to heal. Doctors often recommend avoiding heavy lifting, twisting movements or high impact activities for several weeks. Following these precautions allows the treated disc to recover and stabilise properly.
Disc Pain Relief Starts with the Right Specialist
Minimally invasive treatments such as annuloplasty offer a targeted approach to managing certain forms of disc-related pain. By focusing on the damaged portion of the disc, the procedure aims to reduce irritation and support better spinal stability without major surgery.
At Alyssum Medical, patients receive personalised care focused on identifying the underlying cause of pain and providing minimally invasive solutions whenever possible. Treatment is led by Dr Thor Timothy, an anaesthesiologist and pain specialist experienced in interventional procedures for spinal and nerve related pain.
You do not have to manage chronic back pain alone. Schedule an appointment and take the first step towards moving with greater ease again.

Meet Our Pain Specialist in Singapore
Dr Thor Timothy, Anuntapon Chutatape
Dr Thor Timothy, Anuntapon Chutatape is an anaesthesiologist and pain specialist dedicated to helping patients find relief from acute and chronic pain without surgery. He was previously the Director of Acute Pain Services at Singapore General Hospital and has received advanced training in interventional pain medicine internationally. Dr Thor is a Fellow of Interventional Pain Practice (FIPP, USA), a Fellow of the Faculty of Pain Medicine of the Australian and New Zealand College of Anaesthetists (FFPMANZCA) and a Fellow of the Academy of Medicine Singapore (FAMS). He also holds the European Diploma of Pain Management (EDPM).

