Chronic Lower Back Pain
Chronic lower back pain is one of the most common long‑term pain conditions worldwide and a major cause of disability and time off work. For many people, a combination of active self‑management, rehabilitation, and carefully chosen interventional pain procedures can meaningfully reduce pain and improve day‑to‑day life.[1][2][3][4]
WHAT IS CHRONIC LOWER BACK PAIN?
Chronic low back pain (CLBP) is pain between the lower ribs and buttocks that lasts or recurs for more than 12 weeks. Only a minority of cases have a single clear structural cause (such as a fracture or tumour); most are “nonspecific,” meaning no
single disc, joint, or nerve fully explains the pain. Around 5–10% of people with an acute episode develop persistent pain, and this group accounts for most of the long‑term impact.[2][5][6][1]
WHY CHRONIC BACK PAIN HAPPENS
CLBP usually reflects a mix of mechanical, nervous‑system, and biopsychosocial factors rather than one “broken part.”[6][1]
Mechanical factors: Age‑related disc and joint changes, muscle deconditioning, posture, and loading can contribute, but similar MRI findings are common in people without pain.[1][6]
Central sensitisation: In many with chronic nonspecific low back pain, the spinal cord and brain become more sensitive, turning up the “volume” on pain signals so that normal movement or touch can hurt more.[7][8]
Biopsychosocial factors: Stress, low mood, poor sleep, fear of movement, smoking, and heavy/repetitive work increase the risk of pain becoming persistent.[2][6]
This helps explain why repeated scans or surgeries often do not “fix” chronic back
pain and why a broader approach, sometimes including procedures, works best.[4][6]
RED FLAGS: WHEN BACK PAIN MAY BE MORE SERIOUS
Most back pain is benign, but urgent medical review is needed if you develop:[1]
New bowel or bladder incontinence, difficulty urinating, or numbness in the saddle/genital area.
Fever with back pain, recent serious infection, IV drug use, or immune suppression.
History of cancer with new, unexplained back pain, especially at night or at rest.
Recent major trauma, or minor trauma in people with osteoporosis.
These situations are uncommon but important to rule out before focusing on chronic pain strategies.
FIRST-LINE TREATMENT: MOVEMENT, EDUCATION, AND MOOD
International guidelines agree that the foundation of CLBP care is active, not passive, management.[9][10][4]
Keep moving: Regular walking, low‑impact aerobic exercise, and simple strengthening/flexibility routines reduce pain and disability more than rest.[4][9]
Education: Understanding that pain is real but not a simple “damage meter” reduces fear and catastrophising and encourages safe movement.[6]
Psychologically informed care: Cognitive‑behavioural therapy (CBT), acceptance‑based approaches, or psychologically informed physiotherapy help address worry, low mood, and fear of movement.[9][4]
Medications: Short courses of NSAIDs can help flares; long‑term opioids and benzodiazepines are generally discouraged because benefits are small and risks accumulate.[10][9]
For many, this combination is enough. For others, especially when pain remains focal and disabling despite good care, interventional procedures may be considered.
INTERVENTIONAL PROCEDURES FOR CHRONIC LOW BACK PAIN
Interventional pain procedures use targeted injections or energy (such as radiofrequency) to act directly on pain‑generating structures—often under X‑ray or ultrasound guidance. They are usually day‑only, minimally invasive, and can provide a valuable “window” of relief to help you move more freely and engage in rehabilitation.[3][11][12]
These procedures are most helpful when:
Pain is reasonably localised (e.g. facet joint–mediated, sacroiliac joint pain, nerve root irritation).
Conservative treatments have been tried but pain still limits function.
Imaging and examination suggest a plausible pain generator, confirmed where possible by diagnostic blocks.[13][3]
FACET JOINT INJECTIONS AND MEDIAL BRANCH BLOCKS
Facet joints are small joints at the back of the spine that can cause localised back or neck pain, often worse with extension or prolonged standing.[4][6]
Medial branch blocks involve injecting a small amount of local anaesthetic (sometimes with steroid) near the tiny nerves that supply the facet joints.[14][3]
A strong but temporary reduction in pain suggests the facets are a major pain source and identifies patients who may benefit from radiofrequency ablation.[3][14]
Benefits and expectations:
Typically provide hours to days of relief for diagnostic blocks; therapeutic injections with steroid may help for weeks.[3]
Low risk; mild soreness or temporary increase in pain is the most common side effect.[13]
RADIOFREQUENCY ABLATION (RFA) OF MEDIAL BRANCH NERVES
Radiofrequency ablation uses heat from a specialised needle to interrupt pain signals in the medial branch nerves for an extended period.[14][3]
Evidence suggests that, in well‑selected patients with positive diagnostic blocks, 60–80% experience significant pain relief and functional improvement lasting 6–12 months or more.[12][3]
Nerves slowly regenerate, so procedures can be repeated if benefit wears off.[3]
RFA does not change the underlying arthritis but can “turn down the volume,” allowing stronger participation in exercise and daily life.
EPIDURAL STEROID INJECTIONS
When chronic back pain is accompanied by leg pain from nerve root irritation (sciatica or radiculopathy), epidural steroid injections can reduce inflammation around the affected nerve.[15][4]
Transforaminal or interlaminar injections deliver steroid and local anaesthetic into the epidural space under fluoroscopy.[11][3]
Randomised trials show modest to moderate short‑term relief (weeks to a few months) in many patients, with some experiencing longer benefits.[4][3]
Expectations:
Best for prominent leg pain from disc bulge or stenosis rather than purely axial back pain.[4]
Often limited to a few injections per year to avoid steroid over‑exposure.[3]
SACROILIAC JOINT INJECTIONS AND RFA
The sacroiliac (SI) joints, connecting the spine and pelvis, can cause buttock or lower back pain, sometimes radiating to the thigh.[4]
Image‑guided SI joint injections with local anaesthetic and steroid can both diagnose and treat SI joint–mediated pain.[13]
For those with a clear positive response, cooled or conventional RFA of lateral branches can offer longer‑term relief.[13][3]
OTHER OPTIONS IN SELECTED CASES
Trigger point injections for myofascial pain: helpful when tight musclebands cause local and referred pain, often as an adjunct to stretching and physiotherapy.[13]
Spinal cord stimulation (SCS): For carefully selected patients with chronic neuropathic back/leg pain after surgery or in complex regional pain, SCS can provide meaningful reductions in pain and analgesic use, usually after a temporary trial.[12][3]
Vertebral augmentation (e.g. vertebroplasty/kyphoplasty) is reserved for painful osteoporotic compression fractures rather than nonspecific CLBP.[6]
BENEFITS AND LIMITATIONS OF PROCEDURES
Interventional procedures can be powerful tools, but they are not cures.[12][3]
Potential benefits:
Targeted pain relief that may outperform oral medications for certain pain generators.[3]
Short recovery times and low complication rates in experienced hands.[13][3]
Reduced reliance on systemic medications (including opioids) and greater capacity to exercise, work, and sleep.[12][3]
Important limitations:
Responses vary—some people obtain major relief, others more modest benefit, and a minority none at all.[3][13]
Effects are time‑limited; many procedures need to be repeated after months or years, or alternatives explored.[3]
They work best when coupled with active rehabilitation and psychological strategies; without these, improvements may fade quickly.[9][4]
Your pain specialist will discuss the expected size and duration of benefit, tailored to your specific condition, and will typically recommend a trial‑and‑review approach.
SAFETY AND RISK CONSIDERATIONS
Complications are uncommon, especially when procedures are done under imaging guidance with appropriate screening.[13][3]
Common, usually mild: temporary soreness, bruising, transient increase in pain, or short‑lived numbness/weakness.[13]
Less common: infection, bleeding, allergic reactions, steroid side effects (flushing, sleep disturbance, temporary blood sugar rise).[3][13]
Rare but serious: nerve injury or significant bleeding; thorough consent and pre‑procedure planning aim to minimise these.[3]
You may be asked to adjust blood thinners, fast, or arrange a support person depending on the procedure and sedation plan.
PUTTING IT ALL TOGETHER: A HOPEFUL, REALISTIC ROADMAP
For chronic lower back pain, the most effective strategy usually combines:
Ongoing movement and strengthening.
Education and psychological support to manage fear, mood, and sleep.
Judicious medications for flares or specific pain types.
Interventional pain procedures when pain remains focal and disabling despite best conservative care.
Interventions are tools that can open a window of reduced pain; what you do with that window—rebuilding strength, confidence, and participation—is what drives long‑term progress. With a tailored plan and clear expectations that treatments may need to be adjusted or repeated, many people achieve meaningful, sustained improvements in function and quality of life, even if some degree of pain persists.
RESOURCES
https://www.medcentral.com/pain/spine/latest-practiceguidelines-on-the-management-of-low-back-pain
https://www.mountsinai.org/care/pain-management/treatment-options/interventional-procedures
https://www.dredwardcarden.com/blog/6-types-of-interventional-pain-management
https://totalspineortho.com/exploring-interventional-pain-management-techniques-and-benefits/
