Do you experience a sharp, burning, or electric pain that shoots from your lower back into your buttock and down your leg? Perhaps you’ve also noticed numbness, tingling, or even weakness in your leg or foot.
If this sounds familiar, you may be experiencing lumbar radiculopathy, also known as sciatica. This condition occurs when a nerve root in the lower back becomes irritated or compressed, causing pain and other symptoms to radiate along the path of the sciatic nerve.
The good news is that with the right diagnosis and treatment, most people can successfully manage their symptoms and return to their normal activities.
Lower Back Anatomy
Bones / Spine
Your lower back, known as the lumbar spine, is made up of five bones(vertebrae) that are stacked on top of another. Together, these bones form the lower portion of your spine, providing support, stability, and strength to carry the weight of your upper body.
Intervertebral Discs
Between each vertebra sits an intervertebral disc, which acts as a natural cushion and shock absorber. Each disc has a strong outer ring called the annulus fibrosus, that are designed to resist stretching and twisting forces. At the centre is a soft, jelly-like core called the nucleus pulposus, which contains mostly water and special proteins called proteoglycans. These proteins attract and hold water, allowing the disc to absorb pressure and distribute loads effectively.
Ligaments
Ligaments are tough bands of connective tissue that link the vertebrae together. They run along the front, back, and sides of the spine, helping to keep it stable while preventing excessive or unwanted movement.
Nerves
The spinal cord travels through the centre of the spine, with spinal nerves exiting between each pair of vertebrae. In the lumbar spine, these nerves extend into the hips, legs, and feet. They are responsible for carrying messages between the brain and the body, allowing you to feel sensations such as touch, temperature, pressure, and pain, while also controlling muscle movement.
The sciatic nerve is the longest and largest nerve in the body. The nerve “starts” in the lower back and travels through the buttock, down the back of the thigh, and toward the knee. Around the back of the knee, it divides into two branches: the tibial nerve and the common fibular (peroneal) nerve. These nerves continue down the lower leg and into the foot, supplying different muscles and areas of skin.
Muscles
A network of muscles supports the lower back, including the deep core stabilising muscles, the larger muscles that straighten and extend the spine, and muscles connecting the spine to the pelvis and hips. Together, these muscles provide spinal stability, maintain good posture, and help you perform everyday movements safely and efficiently.
What does it do?
What Do Nerves Do?
Think of your nervous system as your body’s communication network. Your brain is the control centre, and your nerves are the “wires” that carry messages between your brain and every part of your body. Some nerves carry instructions from your brain to your muscles, telling them when and how to move. This is what allows you to walk, climb stairs, bend down, or simply move your foot. Other nerves send messages back to your brain, letting you know what your body is feeling. They allow you to sense touch, pressure, temperature, pain, and even where your body is positioned without having to look. When a nerve is healthy, these messages travel quickly and smoothly. However, if a nerve becomes irritated, inflamed, or compressed, the messages cannot travel properly. This can cause symptoms such as pain, tingling, pins and needles, numbness, muscle weakness, or difficulty moving the affected area.
Your Sciatic Nerve
The sciatic nerve is the largest and longest nerve in the body. It is formed by several nerve roots in the lower back and travels through the buttock, down the back of the thigh, before dividing into two smaller nerves below the knee. Together, these nerves supply most of the muscles and skin of the lower leg and foot. Because the sciatic nerve serves such a large area, irritation or compression anywhere along its course can cause symptoms that travel from the lower back or buttock into the thigh, calf, and even the foot. This is why sciatica is often felt as pain, tingling, numbness, or weakness that radiates down the leg rather than staying only in the lower back
How did it happen?
Lumbar radiculopathy develops when a nerve becomes irritated, inflamed, or compressed. Nerves are particularly sensitive in areas where they pass through narrow spaces or between muscles, ligaments, tendons, and bones. If one of these structures places excessive pressure on the nerve or restricts its normal movement, the nerve cannot function properly, resulting in pain and other symptoms.
Nerves are designed to glide smoothly as your body moves. However, repetitive activities, prolonged postures, or repeated bending and twisting can cause the tissues surrounding a nerve to become tight or inflamed. As this irritation continues, the outer covering of the nerve may also become inflamed, making the nerve more sensitive. Swelling and scar tissue can develop around the nerve, reducing its ability to move freely and increasing irritation whenever the affected area is used.
Around 90% of people with lumbar radiculopathy, have a lumbar disc herniation affecting one of the nerve roots that form the sciatic nerve. Interestingly, not everyone experiences low back pain at the same time. A bulging or herniated disc can trigger inflammation around the nerve root or place direct pressure on it, causing pain, tingling, numbness, or weakness that radiates into the buttock and down the leg.
In many cases, this process develops gradually rather than after a single injury. Spending long hours sitting, repeatedly lifting heavy objects, or frequently bending and twisting can place increasing stress on the discs in your lower back. Although these discs are designed to absorb shock and allow movement, repeated strain over months or years can contribute to wear and tear. Over time, the outer layer of the disc may weaken, allowing the softer centre to bulge or herniate, which can irritate or compress a nearby nerve root and lead to sciatica symptoms.
Causes of
- Lower back disc injury or slipped disc
- Pinched nerve in your lower back
- Piriformis syndrome
- Hip dislocation
- Scar tissue
- Spondylolisthesis
- Pregnancy
- Degenerative disc disease
- Poor posture over long periods, especially while sitting.
- Repetitive movements that strain your lower back (like bending and twisting).
- Picking up or pushing something much heavier than your body is used to.
- Age-related changes (degeneration) lead to decreased height and flexibility of your discs.
- Exposure to vibration (like driving a car) for long or repetitive periods of time.
- Repetitive coughing or sneezing that increases abdominal pressure and pressure on discs.
This is the core message I want you to understand, think about after you’ve read this article
Stating something is in a bad state is Information.
Explaining the influence of a bad state is Knowledge.
How severe is my Lumbar Radiculopathy ?
Lumbar radiculopathy usually develops gradually rather than appearing overnight. In the early stages, you may notice occasional stiffness, discomfort, or a mild ache in the buttock or the back of the leg that comes and goes. At first, these symptoms may only occur after prolonged sitting, standing, walking, or certain movements, and they often improve with rest. As the condition progresses, however, the episodes become more frequent, last longer, and gradually become more painful.
As irritation of the nerve increases, the pain often changes from a dull ache to a sharp, burning, or electric sensation that travels down the leg. Many people also begin to experience tingling, pins and needles, numbness, or altered sensation. These symptoms can extend from the buttock into the thigh, calf, and sometimes as far as the foot, depending on which nerve root is affected.
More severe lumbar radiculopathy can start to interfere with everyday life. Sitting for long periods, bending forward, lifting, getting in and out of a car, or walking even short distances may become difficult. Some people find that their symptoms worsen as the day goes on, while others notice increased pain at night or significant stiffness first thing in the morning. In more advanced cases, the pain may disturb sleep or force you to stop activities because the leg becomes too painful.
When we assess the severity of your lumbar radiculopathy, we don’t look only at your pain level. We also evaluate how easily your symptoms are triggered, how much they limit your movement, and whether the affected nerve is functioning normally. This includes checking for nerve-related symptoms such as tingling, burning, numbness, or electric shock-like pain, as well as testing muscle strength, reflexes, and sensation. If the compressed nerve is no longer able to send signals effectively, weakness may develop in certain leg or foot muscles, making activities such as walking, climbing stairs, or standing on your toes or heels more difficult.
The earlier nerve irritation is identified and managed, the better the chance of reducing pain, restoring normal movement, and preventing symptoms from becoming chronic.
Diagnosis
Physiotherapy Diagnosis
Our physiotherapists are highly trained to recognize and assess nerve related injuries. We don’t just look at your pain, but take a comprehensive approach to get to the root of the problem. Starting with carefully listening to your history and understanding how your symptoms affect your daily life. Then, we stress and test your spinal and hip mobility, muscle strength, and nerve integrity and mobility. We understand the physiological stages of healing you’ll go through. That is why we can guide you through a structured program to recover faster and safely return to the things you love doing. Our physiotherapists are the best at diagnosing this type of problem.
X-rays
While the discs and nerves themselves are not visible on an X-ray, the space between the bones (vertebrae) can be seen. A reduction in this space may suggest disc degeneration or loss of disc height, but an X-ray cannot confirm the presence of a disc bulge or herniated disc. If a disc injury or nerve compression is suspected, more advanced imaging, such as an MRI, is usually required.
Your physiotherapist will refer you for the investigation, if needed.
Diagnostic ultrasound
Diagnostic ultrasound is an excellent tool for examining soft tissues such as muscles, tendons, ligaments, peripheral nerves, and fluid-filled structures. However, it is not used to diagnose nerve related conditions or a lumbar disc herniation.
If an ultrasound is appropriate, your physiotherapist will refer you for the examination.
MRI
An MRI is the best imaging for evaluating nerve-related and lumbar disc injuries because it provides detailed images of the intervertebral discs, spinal nerves, ligaments, muscles, and bones. It can accurately identify a disc bulge or herniation, nerve root compression, spinal stenosis, and other conditions that may be causing your symptoms.
If your physiotherapist believes an MRI is necessary, they will refer you to the appropriate medical specialist for further assessment.
Why is the pain not going away?
Waiting Too Long to Seek Treatment
A common mistake is hoping the pain will simply disappear with time. Although this can happen in some cases, ongoing nerve irritation will become more difficult to settle the longer it is left untreated. As the nerve remains irritated, it becomes increasingly sensitive. Pain may start occurring more frequently, last for longer periods, and eventually become constant. You may also develop muscle tightness, reduced flexibility, numbness, tingling, or weakness in the affected leg. Early treatment can often prevent symptoms from progressing and speed up recovery.
Doing Too Much or Too Little
Finding the right balance between activity and rest is essential. Too much activity can aggravate the irritated nerve, while prolonged rest can lead to muscle weakness, stiffness, and reduced spinal support. Physiotherapy helps you gradually increase what your body can tolerate without triggering pain. For example, if standing, walking through the shops, or sitting for long periods causes your symptoms to flare up, treatment aims to improve your strength, movement, and nerve mobility so these everyday activities become easier over time. The goal isn’t simply to relieve pain, it’s to improve your body’s capacity to handle normal daily activities without irritating the nerve.
Only Treating the Symptoms
Many treatments focus on temporarily reducing pain rather than addressing the reason the nerve is irritated. Pain medication, braces, massage devices, oils, or supportive mattresses may provide short-term relief for some people, but they do not remove the source of the problem. While medication can be helpful for managing pain and inflammation, lasting improvement usually requires identifying why the nerve is being irritated and treating that cause.
Not Having the Correct Diagnosis
Lumbar Radiculopathy is a symptom, not a diagnosis. Several different conditions can produce similar pain, including a lumbar disc herniation, spinal stenosis, piriformis syndrome, or irritation of another nerve. Because treatment varies depending on the cause, an accurate assessment is essential. Following generic advice from the internet or doing exercises that are not appropriate for your condition may actually aggravate your symptoms instead of helping them. A thorough assessment allows your physiotherapist to identify the underlying cause of your pain and develop a treatment plan that is specific to your needs.
Expecting a Quick Fix
Recovery from sciatica takes time. Irritated nerves heal much more slowly than muscles, and symptoms often improve gradually rather than disappearing overnight. Although you may notice steady progress, it’s normal to have occasional flare-ups during recovery, especially after increased activity. This does not necessarily mean your condition is getting worse, it often means the nerve is still sensitive and needs more time to recover. With the right diagnosis, appropriate treatment, and a progressive rehabilitation programme, most people experience significant improvement and are able to return to their normal daily activities.
The Chronic and Complex Pain Loop
If sciatica is left untreated for longer than 6–12 weeks, it can develop into a chronic pain condition. Over time, the irritated nerve becomes more sensitive, causing the nervous system to amplify pain signals even as the original injury begins to heal. At the same time, the deep stabilising muscles of the lower back weaken, movement patterns change to avoid pain, and surrounding muscles become tight and overworked. Scar tissue may also restrict the nerve’s normal movement, making everyday activities like bending, walking, or sitting more painful. As pain persists, many people begin avoiding movement, leading to further weakness, stiffness, and reduced function. This creates a chronic pain cycle where pain leads to less movement, which in turn causes more weakness, increased nerve sensitivity, and ongoing pain. Breaking this cycle requires more than simply relieving symptoms—it involves restoring normal movement, improving strength, reducing nerve sensitivity, and gradually returning to everyday activities.
Problems we see with Lumbar Radiculopathy
Muscle Weakness
The sciatic nerve carries signals from your brain to the muscles in your leg. When the nerve is irritated or compressed, these signals are disrupted, causing the affected muscles to become weaker. If this continues for a prolonged period, the muscles can gradually lose size and strength. Weakness may range from difficulty climbing stairs or standing on your toes to, in more severe cases, a foot drop, where lifting the front of the foot becomes difficult.
Compensating Your Movement
Pain naturally causes you to change the way you move. You may limp, lean away from the painful side, or avoid certain movements without even noticing it. Although these changes can reduce pain initially, they often place extra stress on other joints and muscles. Over time, these altered movement patterns can contribute to hip pain, pelvic stiffness, muscle tightness, and additional strain on your lower back.
Persistent Nerve Pain
Sciatica often starts as occasional discomfort that comes and goes. Without appropriate treatment, the irritated nerve can become increasingly sensitive, causing symptoms to occur more frequently and last longer. What was once an occasional ache may develop into persistent pain that interferes with work, sleep, and everyday activities.
Long-Term Nerve Damage
Nerve tissue heals much more slowly than muscles or ligaments. If significant nerve compression is left untreated for too long, recovery may take much longer, and some people continue to experience numbness, tingling, burning sensations, or muscle weakness even after the original cause has improved. Seeking treatment early gives the nerve the best opportunity to recover fully.
Physiotherapy Treatment
Our priority is to determine the extent of disc injury and the way it affects the surrounding muscles and nerves. We test the structures surrounding your hip and lower back to clear the nerve pathway and resolve the sciatic nerve pain. Avoiding disc and nerve compression is crucial to restore normal movement of the spinal joints. We protect the surrounding muscles from overworking by addressing compensation patterns and retraining the correct firing pattern. This supports your body in its ability to adapt and heal.
Phases of Rehabilitation
1st Phase: Protection & Unloading ( Weeks 1 to 3)
The early phase of Sciatica is characterized by pain. Even though you may also have some muscle tension or tightness, the overwhelming sensation that brings you to our door is pain. Fortunately, physiotherapists have a variety of options to treat pain. In this stage of treatment, we use electrotherapy like ultrasound, TENS and interferential current to decrease pain by desensitizing the nerve. We also use techniques like dry needling and laser to promote healing and activate your body’s own defenses to relieve pain. Strapping or taping techniques are also used to support the area and, if necessary, avoid movements that irritate your Sciatic nerve.
2nd Phase: Protected Mobility (Weeks 4 to 6)
There will always be some overlap between phases of healing, but after your first 2 to 3 sessions, you will find that your pain is less prominent. Now the underlying stiffness will come to the surface. While we still use many of the modalities from phase 1, we will start adding stronger techniques like myofascial release, joint mobilization and gentle nerve mobilization. Even though you feel tightness in your hip muscles and lower back, now is not the time for stretches and deep tissue massage. The nerve is still settling and healing, so we will start muscle activation and initial strengthening during this stage of treatment.
3rd Phase: Core Reconditioning and Dynamic Movement ( Weeks 6 to 10)
By now, you should be walking, sitting and driving without pain. If you have a very busy day or spend long hours at your computer, your Sciatica will still remind you that it’s there, but overall you should be back to all your normal activities. Now, the focus shifts to long-term maintenance and conditioning. The muscle tension will still be ready and waiting to jump in if the nerve is irritated, so we need to make sure your muscles are strong enough to handle extra load. If the surrounding areas are strong, or conditioned, the muscles don’t have to go into spasm to protect you. Your prescribed exercises during this phase will increase the load on muscles to improve strength while maintaining mobility we worked on during the first 6 weeks of treatment.
Healing Time
With physiotherapy treatment, your pain will be the first thing that goes away. But does that mean the recovery process is complete? Recovery is the process that gets you back to everything you were doing before your pain started. Depending on your injury, and specifically how long you’ve had the problem, recovery can last anywhere from 6 weeks to a year or more. Initially, we will see you twice a week until your pain settles. Thereafter, we will book sessions once a week for 3-4 weeks. In the last phase of treatment, we will need to see you once a month to monitor progress, adapt your exercises and identify any setbacks or complications as soon as possible.
Other forms of treatment
GP: Over the counter medications usually don’t give much relief from nerve pain. A doctor will prescribe something that will help with symptom relief while your physiotherapist treats the root cause of the problem.
Biokineticist: Training with a biokineticist is useful in the late phase of treatment, when your pain is under control and doesn’t interfere with your day to day activities.
Chiropractic: About 90% of Sciatica cases are caused by a lower back disc injury. Strong techniques or adjustments to an already injured disc often causes more damage.
Vitamin supplements: There is evidence that vitamin B12 can promote nerve healing.
TENS: There are TENS units available that help with pain management. Although it won’t help your Sciatic nerve to heal, it can help to ease your pain while a medical professional treats the underlying cause.
Sports massage: While massage is a useful tool for temporary pain relief, it won’t solve your problem.
Ice and heat: These are useful modalities to use at home for pain management, under the guidance of your physiotherapist.
Stretching: Even though your muscles feel tight, stretching will only make your sciatica worse in the early stages of healing.
Acupuncture: This is another technique for temporary relief, but if you don’t treat the actual cause of your sciatica, the results of acupuncture on its own will leave you disappointed.
Is surgery an option?
- Non-surgical management is always the first choice for Sciatica. Even though there’s no quick fix for your problem, physiotherapists are experts in treating your pain and guiding you through the rehabilitation process.
- In very rare cases, surgery may be indicated for Sciatica. These cases can include nerve pain that doesn’t improve with non-surgical treatment after 3 months, worsening signs of nerve damage, or if there is an underlying structural problem like lumbar stenosis. Unfortunately, surgery is always damage control, so there are no guarantees that the operation will solve your problem. Sticking to your rehabilitation program is the best way to ensure a positive outcome after surgery.
