Acute Low Back Pain
Red Flags — act before continuing history
| Red flag | Why dangerous | Action |
|---|---|---|
| Cauda equina syndrome: bladder/bowel dysfunction, saddle anaesthesia, bilateral leg weakness | Compression of the cauda equina at L4/5 or below → permanent paralysis, incontinence, and sexual dysfunction if untreated. Time-critical — hours matter. | A&E now |
| Thoracic pain with spinal cord features (gait disturbance, upper motor neurone signs) | Cord compression at thoracic level causes myelopathy — spastic paraparesis. Often presents with band-like chest tightness and leg stiffness. Rapidly progressive. | A&E now |
| Fever + back pain | Discitis or epidural abscess — haematogenous spread (IV drug use, bacteraemia, recent spine surgery). Can present without systemic upset. MRI urgent. | Same-day assessment |
| History of malignancy + new back pain | Metastatic spinal cord compression (MSCC) until proven otherwise. Lung, breast, prostate, kidney, thyroid most common. Urgent MRI whole spine + oncology referral. | Same-day referral |
| Unexplained weight loss + back pain (especially age >50) | Primary spinal malignancy or systemic cancer with bone involvement. Multiple myeloma, lymphoma, or occult primary. Requires urgent bloods and imaging. | Same-day bloods + urgent ref |
| Trauma with acute vertebral collapse (especially osteoporotic patient or steroid user) | Vertebral compression fracture can compress the spinal canal — needs urgent plain film or CT. Fragility fractures often undertreated and underdiagnosed in elderly. | Same-day imaging |
| Severe night pain, constant pain unrelated to posture/movement, NSAID non-response | Inflammatory pathology (AS, psoriatic arthritis) or malignancy. Mechanical LBP almost always has a positional component. No positional relief is a serious clinical sign. | Urgent bloods + review |
Safeguarding Considerations — Consider in Every Consultation
🏠 Domestic Abuse / Intimate Partner Violence
- Back injury inconsistent with stated mechanism (e.g. "fell down stairs")
- Partner speaks for the patient or insists on remaining in the room
- Multiple ED/GP attendances for musculoskeletal injuries
- Delayed presentation for a significant injury
- Patient appears fearful, avoids eye contact, or minimises pain
👷 Occupational Exploitation / Work-related Harm
- Worker reporting pressure to continue despite significant pain
- No sick pay entitlement leading to unsafe work continuation
- Agency or migrant workers without employment rights awareness
- Employer requesting medical details beyond fit note information
- Repetitive strain pattern inconsistent with job description given
🧒 Children in the Household
- Parent with severely debilitating LBP unable to care for dependants
- Opioid misuse in a parent with children at home
- Domestic abuse safeguarding concern affecting children in household
- Adolescent presenting with back pain — consider non-accidental injury or school-related bullying
💊 Substance Misuse / Medication Diversion
- Requests for specific opioids, dose escalation without clinical change
- Multiple prescribers identified (cross-check NHS systems)
- Loss of prescriptions, early requests for repeat opioids
- Evidence of injecting drug use (track marks) in patient requesting strong opioids
😰 Fear-Avoidance Beliefs
The belief that movement will cause harm or worsen damage leads to progressive deconditioning. Fear-avoidance is the single strongest predictor of chronic LBP and disability.
"Some people worry that moving or exercising will make things worse — do you have any concerns like that?"If present: STarT high-risk pathway; refer for physiotherapy including cognitive-functional therapy; avoid imaging that reinforces structural beliefs.
💔 Catastrophising
Catastrophising (expecting the worst, feeling helpless) amplifies pain perception via central sensitisation. It predicts poor response to all treatments — physical and psychological.
"When the pain is bad, what goes through your mind? Do you find yourself thinking it will never get better?"If present: CBT or ACT-based pain management referral alongside physiotherapy; avoid reinforcing catastrophising by over-investigating.
😔 Depression and Low Mood
Depression is both a consequence and a cause of chronic LBP. Shared neurobiological pathways (serotonin, norepinephrine) explain why antidepressants have analgesic effect in chronic pain even without depression.
"How has your mood been through all this? Back pain can be really wearing — has it affected how you feel in yourself?"If present: PHQ-9 screening; consider duloxetine (evidence in chronic LBP); NHS Talking Therapies referral alongside pain programme.
🏢 Work-Related Factors
Job dissatisfaction and perceived inability to return to work are powerful predictors of long-term sick leave. Workers who fear re-injury or have poor relationships with employers recover more slowly.
"How are things at work in general? Do you feel supported, or is there pressure around taking time off?"If present: early occupational health referral; fit note with modified duties rather than full absence; "work is good for your back" framing.
🔁 Previous Unhelpful Treatment Experiences
Patients who have received passive treatments (massage, manipulation) exclusively, or who have been told "your scan looks terrible," develop passive coping styles and dependence on healthcare. This drives re-consultation.
"What treatments have you tried before? Was there anything that was particularly helpful or unhelpful?"If present: re-frame treatment goals around active self-management; address any iatrogenic illness beliefs ("your scan shows severe degeneration" language).
🧪 Substance Use and Coping
Alcohol and opioid use as coping strategies for pain are common in chronic LBP and worsen long-term outcomes. Both impair engagement with rehabilitation and drive dose escalation.
"Some people find they drink more or rely more on medication when the pain is really bad — has that been an issue at all for you?"If present: CAGE/AUDIT-C screening; opioid review appointment; addiction service referral if appropriate; avoid opioid escalation.
- Failing to screen for cauda equina symptoms in every LBP case
- Ordering X-ray or MRI without red flag justification
- Prescribing paracetamol as first-line (NICE: not recommended)
- Issuing full sick note for acute LBP without exploring modified duties
- Telling the patient to "rest" — increases chronicity risk
- Completing full musculoskeletal history without asking about mood or work
999 or Same-Day Hospital
A&E now / blue-light- Cauda equina syndromeBladder/bowel dysfunction + saddle anaesthesia + bilateral leg weakness → MRI within hours
- Leaking AAASudden severe back/flank pain + pulsatile epigastric mass + haemodynamic compromise → vascular surgical emergency
- Spinal cord compression — thoracicMyelopathy features: leg stiffness, gait disturbance, upper motor neurone signs → neurosurgical emergency
- Spinal epidural abscessFever + severe back pain + rapid neurological deterioration → IV antibiotics + neurosurgery
- Metastatic spinal cord compression (acute)Known cancer + acute severe back pain + neurological deterioration → urgent MRI whole spine + oncology/neurosurgery
Same-Day / 1–2 Week Assessment
Urgent referral / same-day bloods- New back pain + cancer history (no acute neurology)MRI spine within 24–48 hours via MSCC pathway
- Fever + back pain (haemodynamically stable)Same-day bloods (FBC, CRP, ESR, blood cultures); consider same-day MRI if high suspicion discitis
- Suspected vertebral fracture (trauma + osteoporosis risk)Same-day plain X-ray thoracolumbar spine; orthopaedic review if collapse confirmed
- Significant progressive radiculopathy (>6 weeks, worsening)MRI lumbar spine; neurosurgical referral if motor deficit or unresponsive to conservative treatment
- Inflammatory back pain (age <45, morning stiffness >30 min, improves with exercise)HLA-B27; CRP; pelvic X-ray/MRI SI joints; rheumatology referral within 2 weeks
Manage in Primary Care
GP practice — STarT stratification- Acute non-specific LBP (<6 weeks, no red flags)Reassurance + NSAIDs + active advice; avoid imaging; review at 6 weeks
- Subacute LBP (6–12 weeks, improving)Structured physiotherapy; consider group exercise; STarT stratification
- Chronic non-specific LBP (>12 weeks, stable)STarT high-risk: refer for pain management programme with CBT + physiotherapy + occupational therapy
- Radiculopathy with mild symptoms, improvingReassurance, NSAIDs, remain active; MRI if no improvement at 6 weeks or progressive deficit
- Recurrent mechanical LBP in known patientSelf-management plan, exercise diary, review yellow flags; consider group physiotherapy
- Missing a cauda equina history and not sending to A&E immediately
- Over-investigating non-specific LBP (X-ray/MRI without indication)
- Failing to refer for MSCC in a patient with known malignancy
- Telling a patient they "just have a bad back" without completing red-flag screen
- Not examining at all in a first-presentation LBP case
- Performing examination without explaining to the patient what you're looking for
- Missing motor deficit (foot drop) in a patient with leg symptoms
- Not checking for renal angle tenderness when UTI/renal aetiology is possible
- Ordering X-ray or MRI for acute non-specific LBP without red flags
- Not ordering urgent MRI in a patient with known cancer and new back pain
- Forgetting PSA screen in a male patient over 50 with unexplained back pain
- Not explaining to the patient why investigations are or are not being arranged
"What's happening in your back is what we call 'mechanical' or 'non-specific' back pain — which sounds vague, but actually means there's nothing sinister going on. Think of it like a muscle or joint strain rather than a broken bone. The structures in your back — the muscles, ligaments, and discs — are under stress and causing pain, but they heal well when you keep moving gently. I've checked for any worrying features and I'm reassured that this is not cancer, a trapped nerve that needs surgery, or an infection. Most people with pain like this feel significantly better within 6 to 12 weeks — and staying active, rather than resting, is actually the best thing you can do."
"I think I've slipped a disc."
"That's a very common concern, and I can understand why it feels that way. A 'slipped disc' is when one of the cushioning pads between your vertebrae bulges out — but in your case, your nerve function is normal and your symptoms don't point to that. Even if there is a small disc bulge, which is actually very common in people without any pain at all, the approach would still be the same: gentle movement and physiotherapy. It's very rarely something that needs an operation."
"I need a scan to find out what's wrong."
"I understand why a scan feels like the logical next step — and if your symptoms don't improve or if anything changes, we would absolutely arrange one. The reason I'm holding off for now is that scans for back pain very commonly show age-related changes that look worrying on paper but actually don't cause pain and don't need treatment. I'd rather avoid a finding that might cause unnecessary anxiety."
Non-specific / mechanical LBP — most common; no identifiable structural cause; diagnosis of exclusion.
Lumbar disc herniation with radiculopathy — positive SLR, dermatomal pain/sensory change; diagnosed clinically + MRI to confirm.
Lumbar spinal stenosis — older patient, bilateral leg pain on walking (neurogenic claudication), relieved by flexion/sitting; MRI confirms.
Musculoligamentous strain — acute onset with clear mechanism, localised tenderness, no radiation, no neurology.
Spondylolisthesis — anterior slip of one vertebra on another; often identified on plain X-ray in young athletes or degenerate spine.
Axial Spondyloarthropathy (AS)
Age <45, inflammatory pattern, morning stiffness >30 min, buttock pain, responds to NSAIDs. HLA-B27 + MRI SI joints → rheumatology.
Significant disc prolapse with motor deficit
Foot drop, severe radiculopathy not responding to 6 weeks conservative treatment → MRI + neurosurgical referral.
Vertebral compression fracture
Osteoporotic patient, minimal trauma, acute thoracolumbar pain, point tenderness → X-ray; orthopaedics ± vertebroplasty.
Cauda Equina Syndrome
Bladder/bowel dysfunction, saddle anaesthesia, bilateral leg weakness → A&E immediately, MRI within hours, neurosurgical emergency.
Metastatic Spinal Cord Compression
Known cancer + new back pain + any neurology → dexamethasone 16mg, MRI whole spine within 24h, oncology/neurosurgery.
Spinal Epidural Abscess / Discitis
Fever + severe back pain + raised CRP/WCC → MRI urgently + admission for IV antibiotics + neurosurgical opinion.
- Using jargon: "disc degeneration," "spondylosis," "wear and tear" without explanation
- Failing to address the patient's cancer concern explicitly
- Giving a diagnosis without explaining what it means in practical terms
- Telling a patient "your scan was normal" and implying this means they should have no pain
- Routine physiotherapy referral for a patient with foot drop (needs urgent neurosurgery)
- Failing to give dexamethasone in suspected MSCC before transfer
- Not informing the patient what happens next after referral
- Issuing a 2WW without discussing what this might mean with the patient
Validate — name their expectation
Many patients come expecting a scan, a sick note, or stronger painkillers. Naming their expectation shows you've listened and prevents the consultation derailing into an adversarial dynamic.
"It sounds like you were hoping we might be able to arrange a scan to get to the bottom of this — that makes a lot of sense given how long you've been suffering."Explain — share your clinical reasoning
Explain why the requested action may not be the right one, using accessible language. Avoid "we don't do that" — instead explain the clinical reasoning behind your decision.
"The reason I'm not rushing to scan today is that scans in back pain often pick up things that look alarming but are actually very common and not causing your pain — and I'd hate a normal finding to cause unnecessary worry."Negotiate — offer something today
Every patient must leave with something concrete — whether that's a prescription, a referral, a written plan, or even just a clearly explained diagnosis. Leaving empty-handed damages trust and drives re-attendance.
"What I can do today is give you something to help with the pain, refer you to a physiotherapist who specialises in backs, and give you a clear safety-net — if anything changes or it's not improving in 6 weeks, we absolutely review that scan decision."Exercise stimulates endogenous opioid release, reduces central sensitisation, and strengthens the stabilising muscles of the lumbar spine (multifidus, transversus abdominis). It also directly counters deconditioning.
Walking, swimming, cycling, yoga, and pilates all have evidence. The key is consistency, not intensity. Group exercise classes improve adherence and reduce isolation. Start with 10-minute walks and build up gradually.
Modern physiotherapy for LBP incorporates cognitive-functional therapy (CFT) — addressing beliefs, movement avoidance, and pain behaviours alongside physical rehabilitation. This is more effective than exercise alone for high-risk patients.
Refer via STarT Back pathway: low risk → self-management + exercise; medium risk → physiotherapy; high risk → combined CFT + psychological support + physiotherapy.
Sustained lumbar loading (prolonged sitting or standing) causes disc pressure accumulation and paraspinal muscle fatigue. Frequent positional changes and ergonomic seating reduce mechanical stress.
Desk workers: 30-minute movement break rule (walk, stand, stretch every 30 minutes). Screen at eye level. Lumbar support. Manual workers: lifting technique training, consider occupational health referral for ergonomic assessment.
Excess body weight increases compressive loading on lumbar discs, accelerates disc degeneration, and increases inflammatory cytokines. Adipose tissue is metabolically active and contributes to chronic low-grade inflammation.
Frame weight management as back pain treatment, not cosmetic. Refer to NHS Better Health, Tier 3 weight management services, or Weight Management Programme. Low-impact exercise (swimming, cycling) is ideal — continues rehab while supporting weight loss.
Sleep deprivation lowers pain thresholds via reduced descending pain inhibition (impaired DNIC — diffuse noxious inhibitory control) and increases inflammatory cytokine production. LBP causes poor sleep, poor sleep worsens LBP — a vicious cycle.
Avoid sleeping flat on back if it worsens pain — side-lying with pillow between knees is often more comfortable. CBT-I (cognitive behavioural therapy for insomnia) is available via NHS Talking Therapies and is effective for pain-related insomnia.
Nicotine reduces vertebral endplate blood flow and disc nutrition (discs are avascular and depend on diffusion). Smokers have significantly higher rates of disc degeneration and LBP. Smoking also impairs bone healing and post-surgical outcomes.
Frame cessation as a back pain intervention, not just cardiovascular/cancer benefit. Refer to NHS Stop Smoking Service. Nicotine replacement therapy and varenicline both appropriate.
Ibuprofen 400mg TDS with food (or naproxen 500mg BD) — lowest effective dose, shortest duration.
- Always co-prescribe PPI (omeprazole 20mg OD) for GI protection
- Avoid if: renal impairment (eGFR <30), active peptic ulcer, anticoagulation, heart failure
- Topical diclofenac gel (first-line in older patients or those with NSAID contraindications)
- Review at 4 weeks — if ineffective, step up or reconsider diagnosis
Amitriptyline 10–25mg nocte or duloxetine 30–60mg OD — for neuropathic component of radiculopathy or chronic LBP with central sensitisation.
- Gabapentin/pregabalin: limited evidence in LBP; high abuse potential; avoid as first-line
- Duloxetine: evidence for chronic LBP even without depression (dual mechanism: norepinephrine + serotonin)
- Amitriptyline: useful for sleep disruption + neuropathic pain; titrate slowly; anticholinergic effects
- Always counsel on common side effects and time to benefit (2–4 weeks)
Codeine 30mg QDS (max 7–14 days) — only for severe acute LBP where NSAIDs are contraindicated or insufficient; always with an NSAID or paracetamol.
- Use with laxatives (co-prescribe senna + docusate); counsel on constipation, drowsiness
- Do NOT prescribe for >2 weeks without specialist review
- Do NOT prescribe tramadol without considering serotonin syndrome risk
- Do NOT use codeine or tramadol for chronic LBP — NICE NG59 strong recommendation against
Epidural corticosteroid injections — short-term relief in acute radiculopathy; arranged by spinal or pain clinic.
- Facet joint injections: limited evidence; can provide diagnostic information
- Radiofrequency denervation: for facet-mediated pain confirmed by diagnostic blocks
- Spinal cord stimulation: for refractory radicular pain in failed back surgery syndrome
- All require referral to spinal pain clinic — do not arrange in primary care
- Pregnancy: Paracetamol for mild-moderate pain; avoid NSAIDs after 20 weeks; physiotherapy safe and recommended
- Renal impairment (eGFR <30): Avoid NSAIDs; paracetamol + physiotherapy; consider duloxetine with caution
- Anticoagulation: Avoid NSAIDs (bleeding risk); topical diclofenac may be used with caution; prefer physiotherapy-led approach
- Elderly (>75 years): Use topical NSAIDs first; if oral required, use lowest dose + PPI; highest risk of GI bleed, renal impairment, falls on opioids
- Inflammatory LBP (AS): NSAIDs are therapeutic not just analgesic — sustained NSAID use slows radiographic progression
Select patient characteristics — analgesic recommendation appears below
"Take this with food and only for as long as you need it. It works best for back pain when taken regularly for a short period rather than just when the pain is bad. I'm also giving you a tablet to protect your stomach."
NICE NG59: NSAIDs are first-line for LBP — NOT paracetamol. Saying "take paracetamol first" in an SCA will lose marks.
"Apply this directly to the painful area of your back, rubbing it in well. Wash your hands after application and avoid getting it in your eyes. It can take a few days to notice the full effect."
Topical NSAIDs are NICE-recommended and preferred in older adults where systemic NSAID risk is high — mentioning this in an SCA demonstrates nuanced prescribing knowledge.
"This medication works on pain signals in your nervous system — it's not just for depression. It takes 2–4 weeks to notice the full benefit, and nausea in the first week is common but usually settles. Don't stop it suddenly — we'd need to reduce it gradually."
Duloxetine is under-used in chronic LBP — knowing its indication beyond depression demonstrates SCA examiner-level clinical knowledge and is a strong Tasks domain score.
"This is a low dose — much lower than what's used for depression — and it works differently in pain. Take it about an hour before bed, as it may make you drowsy at first. The dry mouth and drowsiness usually improve after the first couple of weeks."
Clarify amitriptyline is being used as a pain modulator, not an antidepressant — patients may be upset if they think you're calling their pain "psychological." This distinction consistently scores Relating to Others marks.
"This is a strong painkiller for short-term use only — no more than 1–2 weeks. It can cause constipation, so I'm giving you a laxative at the same time. Do not drive if you feel drowsy. And please don't take it on an ongoing basis without speaking to me first."
NEVER recommend opioids for chronic LBP in an SCA — this is an instant high-risk mark. If the patient has been on opioids, initiate a deprescribing conversation instead.
"This is a very short course — just to help with the severe spasm right now. It will make you drowsy, so you must not drive. It's important that you don't take this for longer than a week, as it can become habit-forming."
Diazepam is frequently misused in LBP prescribing — an SCA examiner will note if you prescribe it for >5 days or without indicating it's a short course adjunct to NSAIDs, not a standalone or long-term treatment.
Driving
DVLA does not impose mandatory restrictions for LBP alone. However, patients taking opioids, muscle relaxants, or benzodiazepines must not drive if impaired.
Patients should self-assess ability to drive safely — if pain prevents an emergency stop, they must not drive. This is a legal duty and should be documented.
Chronic pain patients on stable opioid doses may drive if not impaired — but must inform DVLA if condition significantly affects driving ability.
"If you're taking the codeine, you must not drive while it makes you drowsy — it's a legal requirement, not just advice."Work and Sick Notes
Staying at work (or returning to modified duties early) is beneficial for LBP outcomes. Full absence should be a last resort, not the default.
Fit notes (Med 3) can recommend modified duties, phased return, or workplace adaptations. "May be fit for work if..." is often more appropriate than "unfit for work."
Long-term absence (>4–6 weeks) dramatically reduces the probability of return to work. Early occupational health referral is more effective than extended sick leave.
"I'd like to explore whether there are any adjustments your employer could make so you can stay at work — complete rest actually makes back pain worse in the long run."Mood, Identity and Self-Worth
Chronic pain profoundly affects identity — patients describe feeling "broken," "useless," or "a burden." Loss of role (breadwinner, active parent, sportsperson) amplifies depression.
PHQ-9 screening is indicated in all chronic LBP patients. Active treatment of depression alongside LBP is not optional — untreated depression perpetuates pain.
Self-management courses (NHS Pain Management Programme) address identity and meaning as well as physical rehabilitation.
"Living with pain every day is exhausting — not just physically. How has it been affecting how you feel about yourself and your daily life?"Relationships and Intimacy
Chronic LBP directly affects sexual function and intimate relationships. Pain during or after sex is common and rarely volunteered. Relationship strain due to role reversal and dependency is significant.
Partners of chronic pain sufferers experience significant carer burden, anxiety, and their own psychological consequences. Family therapy or couples counselling may be appropriate.
Opioids directly suppress testosterone and libido — particularly in men on long-term opioids. This is a pharmacological effect, not psychological.
"Chronic pain can affect many aspects of life that people don't always mention — including intimacy and relationships. Has that been an issue for you?"Physical Activity and Social Life
Fear-avoidance leads to progressive withdrawal from social and physical activities, worsening deconditioning, isolation, and depression in a self-perpetuating cycle.
Reframing exercise as treatment — not something to tolerate despite pain — is critical. Group exercise classes provide social connection alongside physical benefit.
Social prescribing: pain support groups, back pain classes, leisure centre referral schemes — all reduce isolation and improve self-efficacy.
"I know it feels like movement makes things worse, but the evidence is very clear — the more we can keep you active, the faster you'll recover and the less likely the pain is to become permanent."Medication Impact and Dependence
Long-term opioid use in LBP is associated with cognitive impairment, opioid-induced hyperalgesia (pain amplification), hormonal disruption, and social withdrawal.
Patients on long-term opioids may need a structured tapering programme, ideally with psychology support. Sudden withdrawal is unsafe and counterproductive.
NSAIDs long-term carry renal and cardiovascular risk — review need at every chronic LBP review and consider deprescribing when in pain management programme.
"I want to have an honest conversation about the painkillers you're on — I'm concerned that long-term, they may actually be contributing to the problem rather than solving it."2 weeks — Acute LBP review
Review response to analgesia and activity. Check red flags have not developed. STarT Back Tool if not yet done. Adjust analgesia — step up if insufficient, step down if improving. Consider physiotherapy referral if not already arranged. Fit note review if patient off work.
6 weeks — Subacute reassessment
If not significantly improved by 6 weeks, review diagnosis. Arrange MRI if radiculopathy features persist or worsen. Reassess psychosocial yellow flags. Escalate physiotherapy to structured programme if STarT medium/high risk. Begin chronic pain pathway if trajectory poor. PHQ-9 if not already done.
12 weeks — Chronic LBP threshold
At 12 weeks, pain is classified as chronic. Formally review opioid use — initiate deprescribing plan if on opioids. Refer to multidisciplinary pain management programme (CBT + physio + OT). Review benefit entitlements if still off work. Occupational health referral. Consider duloxetine if not already tried.
3 months — Chronic LBP management review
Review progress in pain management programme. Assess opioid tapering progress. Re-screen with PHQ-9. Review all medications for ongoing need. Check if MRI arranged and results reviewed. Neurosurgical referral if refractory radiculopathy or motor deficit. Update shared care plan.
Annual — Long-term chronic LBP review
Annual structured review for all chronic LBP patients. Full medication review including opioids (consider deprescribing if no clear benefit). Bone protection review if on long-term opioids or steroids. Work status and return-to-work barriers. PHQ-9 / GAD-7. Social prescribing and self-management update. Safeguarding review if applicable.
Memory rule — LBP Monitoring: ABCDE
Analgesia review (dose, efficacy, side effects, opioid risk) · Bowel function (constipation on opioids — always co-prescribe laxative) · Chronic pain pathway trigger at 12 weeks · Depression screen (PHQ-9 at 6 and 12 weeks) · Employment and function (fit note, occupational health, return-to-work plan)
⚠ Three scenario-specific phrases — use these verbatim
Why safety-netting matters beyond clinical care
- Prescribing paracetamol alone as first-line — NICE explicitly recommends against
- Advising bed rest — evidence-based contraindication; worsens outcomes
- Giving a sick note for full absence without exploring modified duties first
- Ordering X-ray or MRI without red flag justification
- Not safety-netting for cauda equina features — medico-legally unsafe
- Escalating opioids in a patient with chronic LBP (>12 weeks) without specialist review
- Red flag screen completed and documented
- STarT Back Tool applied; management stratified by result
- Correct analgesia prescribed (NSAIDs ± adjunct; not paracetamol alone)
- Active management plan: exercise + physiotherapy referral
- Specific cauda equina safety-net given verbally
- ICE fully explored — cancer fear, scan request, sick note need all named
- Patient's expectation acknowledged and negotiated (not dismissed)
- Diagnosis explained in plain language with analogy
- Psychosocial impact discussed: work, mood, activity, relationships
- Patient given a concrete outcome from today (prescription, referral, plan)
- Closing question asked — "anything else on your mind?"
Who you are
Marcus, 42 years old, HGV delivery driver. 3-week history of right-sided lower back pain that started after loading heavy boxes. Pain rated 7/10, radiating to right buttock but not below the knee. You work for a logistics company that puts a lot of pressure on drivers to stay at work. You've been taking over-the-counter ibuprofen but haven't taken it regularly. You're worried about losing your job if you take time off, but you're also terrified that you've damaged your spine permanently.
Hidden agenda
Your real fear is that you have the same thing your father had — spinal cancer — who died of prostate cancer with spinal metastases 5 years ago. You haven't mentioned this to anyone. You don't want a scan primarily for reassurance about mechanics — you want to rule out cancer. You will only feel truly reassured if the doctor explicitly addresses cancer and explains why they're not concerned. If the doctor orders a scan "to rule things out" without discussing this openly, you will leave still worried.
Symptoms if asked directly
- Pain: right lumbar and buttock, 7/10 at worst
- No radiation below the knee — if asked specifically, it stays in the buttock
- No bladder or bowel changes — if asked about this, be clear: "No, nothing like that"
- No saddle numbness, no leg weakness
- No fever, weight loss, or night sweats
- Pain worse with twisting and prolonged sitting in the cab
- Slightly better lying on your side; no position completely relieves it
- No previous cancer, no prostate symptoms
Lifestyle + bonus details
- BMI approximately 29 — slightly overweight, no regular exercise
- Smoker — 15 cigarettes/day for 20 years
- Stressful job; driving 10 hours/day; poor ergonomics
- Married, two children (ages 8 and 11); main breadwinner; financial anxiety about sick leave
- Bonus detail (only if asked about mood/stress): "If I'm honest, I've been quite down lately — it's not just the back, things have been hard since Dad died."
- Has not been to the GP in over 3 years before today
Resolution: Marcus will accept the plan if the doctor (1) explicitly names and addresses the cancer fear — not just after the challenge but proactively; (2) explains the clinical features that distinguish mechanical from malignant pain (no weight loss, no fever, onset with mechanism, age appropriate, examination normal); (3) gives clear safety-netting including when a scan would be arranged and what symptoms would prompt immediate review; (4) offers something concrete today — analgesia, physiotherapy referral, and a follow-up date.
- Cauda equina features (bladder/bowel/saddle anaesthesia)
- Cord compression / myelopathy
- Leaking AAA (pulsatile mass, haemodynamic compromise)
- Epidural abscess / discitis (fever + neurological signs)
- Acute MSCC (known cancer + new neurology)
- Cancer history + new back pain (no neurology)
- Fever + back pain (stable, no neurological signs)
- Suspected vertebral fracture (trauma + osteoporosis)
- Progressive radiculopathy with motor deficit
- Suspected AS/SpA (age <45, inflammatory pattern)
- Acute non-specific LBP (<6 weeks, no red flags)
- Subacute LBP (6–12 weeks, improving)
- Chronic non-specific LBP — STarT stratification
- Radiculopathy with mild/improving symptoms
| Medication / Intervention | Test / Review | Timing | Action threshold |
|---|---|---|---|
| Oral NSAIDs | U&E, BP, GI symptoms | Baseline; 4 weeks if ongoing | eGFR fall >25% → stop; GI symptoms → increase PPI or switch to topical |
| Codeine / opioids | Duration, bowel function, dose creep | Do not repeat without review | Any use >14 days without improvement → structured opioid review + deprescribing plan |
| Duloxetine | LFTs, BP, mood (PHQ-9) | Baseline; 6 weeks response; 6-monthly | No pain benefit at 8 weeks → reconsider; LFTs >3× ULN → stop |
| Amitriptyline | ECG (if cardiac risk), falls | Baseline ECG; 4-week response review | QTc >450ms → review; falls → dose reduce or switch; no benefit at 6 weeks → discontinue |
| Diazepam | Duration, dependence features | Maximum 5–7 days; no repeats without review | Any dependence features → formal tapering; any request beyond 7 days → structured review |
| STarT Back Tool | Risk stratification score | At presentation; repeat at 6 weeks | High risk → combined CBT + physio programme; medium → physio; low → self-management + exercise |