Spinal Dysfunction

📋 Key Information Summary

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Spinal dysfunction is one of the most common presentations in Australian general practice, affecting the cervical, thoracic, and lumbar-sacral regions with distinct aetiologies and clinical features for each.
Non-specific mechanical pain accounts for approximately 85–90 % of all spinal presentations and is self-limiting in the majority of cases (resolving within 4–6 weeks).
Red flags — cauda equina syndrome, progressive neurological deficit, spinal cord compression, suspected malignancy, and spinal infection — require urgent investigation and referral.
Routine imaging (X-ray, CT, MRI) is not recommended in the first 4–6 weeks of uncomplicated spinal pain in the absence of red flags.
MRI is the investigation of choice for assessing soft-tissue pathology, disc herniation, neural compression, and cord compromise; MBS rebated MRI requires specific clinical criteria.
Conservative management — education, reassurance, activity modification, and physiotherapy — is first-line for the vast majority of spinal dysfunction presentations.
Paracetamol ± NSAIDs are first-line pharmacotherapy. Short-term muscle relaxants (e.g., diazepam ≤ 7 days) may be considered for acute muscle spasm.
Neuropathic pain agents (pregabalin, amitriptyline, duloxetine) are indicated for radicular pain and chronic neuropathic spinal pain, subject to PBS Authority criteria.
Cervical dysfunction may present as neck pain, cervicogenic headache, cervical radiculopathy, or — critically — cervical myelopathy requiring urgent specialist input.
Thoracic spinal pain at rest, particularly in patients > 50 years, must raise suspicion for vertebral compression fracture or metastatic malignancy.
Lumbar spinal stenosis classically causes neurogenic claudication (bilateral leg symptoms relieved by spinal flexion) and may require surgical referral.
The STarT Back Screening Tool is recommended for risk stratification of low back pain to guide management intensity and identify patients who benefit from psychologically informed physiotherapy.
A biopsychosocial approach addressing yellow flags (fear-avoidance beliefs, catastrophising, workplace stress) is essential for preventing acute pain becoming chronic disability.
Aboriginal and Torres Strait Islander peoples experience disproportionately higher rates of musculoskeletal conditions with significant barriers to specialist and allied health access, particularly in remote communities.
Surgical referral (neurosurgery or orthopaedic spine) is indicated for cauda equina syndrome, progressive myelopathy, severe or progressive neurological deficit, and intractable pain failing ≥ 6–12 weeks of optimal conservative care.

Introduction & Australian Epidemiology

Spinal dysfunction encompasses a broad spectrum of conditions affecting the cervical, thoracic, and lumbar-sacral segments of the vertebral column. It is among the most frequent reasons for presentation to Australian general practice, accounting for approximately 3–5 % of all encounters, and is a leading cause of disability and work absenteeism nationally. Back pain alone costs the Australian economy an estimated $A 4.8 billion annually in direct healthcare expenditure and lost productivity.

The overwhelming majority of spinal pain is classified as non-specific — meaning no single identifiable pathoanatomical source can be confidently attributed as the cause. This does not diminish the patient's experience of pain but underscores the importance of distinguishing benign, self-limiting mechanical pain from serious underlying pathology (the "red flags").

The Australian Burden of Disease Study (AIHW, 2022) ranks low back pain as the leading cause of total disease burden in Australians aged 25–64 years. Musculoskeletal conditions collectively account for the third-largest disease burden in Australia after cancer and cardiovascular disease. Neck pain affects approximately 10–15 % of Australian adults at any given time, and thoracic spinal pain — though less common — carries particular diagnostic significance because of the need to exclude sinister aetiology.

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Key clinical principle: The primary role of the GP is to identify the small proportion of patients with serious spinal pathology (≤ 1–2 % of presentations) while providing evidence-based, reassuring management for the large majority with benign, self-limiting conditions. Avoid iatrogenic harm from unnecessary imaging and over-medicalisation.

In the Australian context, Medicare Benefits Schedule (MBS) item numbers govern rebated access to imaging (MRI, CT, X-ray), specialist referral, and allied health services under chronic disease management plans (GPMP items 721, 723). Understanding these pathways is essential for timely and cost-effective management.

Cervical Spinal Dysfunction

Anatomy and Pathophysiology

The cervical spine comprises seven vertebrae (C1–C7) with five mobile motion segments (C2–C7). The upper cervical segments (C0–C2) are specialised for axial rotation and flexion-extension, while the lower cervical segments (C3–C7) bear increasing load and are most susceptible to degenerative change. Intervertebral discs, facet (zygapophyseal) joints, uncovertebral joints (of Luschka, C3–C7), ligaments, and paraspinal musculature all contribute to cervical stability and movement.

Degenerative cervical spondylosis — affecting discs, facet joints, and osteophyte formation — begins in the third decade and is near-universal by age 60. Symptomatic disease arises when degenerative changes compress neural structures (nerve root → radiculopathy; spinal cord → myelopathy) or generate nociceptive pain from facet joints, discs, or musculoligamentous structures.

Clinical Presentations

Presentation	Key Features	Typical Level	Urgency
Non-specific neck pain	Mechanical, activity-related pain; no neurological signs	Variable (C4–C7)	Routine
Cervicogenic headache	Referred pain from C1–C3 structures; occipital → frontal; provoked by neck movement or sustained postures	C1–C3	Routine
Cervical radiculopathy	Dermatomal arm pain ± paraesthesia ± motor weakness; Spurling's test positive	C5 (deltoid), C6 (biceps/wrist ext), C7 (triceps/wrist flex), C8 (finger flexors)	Urgent (if motor deficit)
Cervical myelopathy	Gait disturbance, hand clumsiness, Lhermitte's sign, hyperreflexia, upgoing plantars, bowel/bladder dysfunction	Multilevel	Emergency — refer same day
Acute wry neck / torticollis	Sudden onset, painful head tilt, limited rotation; often upon waking	C2–C4	Routine
Whiplash (WAD)	Acceleration-deceleration injury; neck pain, headache, dizziness; usually motor vehicle accident	Multilevel	Urgent (exclude fracture/dislocation)

Clinical Assessment — Cervical Spine

Inspection: Head posture, muscle symmetry, skin scars, surgical hardware
Range of motion: Flexion, extension, rotation (normal ≈ 80° each rotation), lateral flexion (≈ 45°); assess willingness to move vs true restriction
Spurling's test (foraminal compression): Neck extension + lateral flexion + axial compression → reproduction of radicular arm pain (sensitivity 30–50 %, specificity 90–95 %)
Upper limb neurological examination: Myotome power (C5–T1), dermatome sensation, deep tendon reflexes (biceps C5–6, supinator C5–6, triceps C7), Hoffman's sign
Gait assessment: Heel-toe walking, tandem gait — essential if myelopathy suspected
Canadian C-Spine Rule: Validated for clearing cervical spine injury in alert, stable trauma patients in the emergency department

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Cervical myelopathy — do not miss: Progressive gait disturbance, bilateral hand clumsiness (difficulty with buttons), Lhermitte's sign (electric shock sensation radiating down the spine with neck flexion), hyperreflexia, and/or upgoing plantar reflexes mandate urgent MRI and neurosurgical referral. Delayed diagnosis leads to irreversible spinal cord damage.

Thoracic Spinal Dysfunction

Anatomy and Pathophysiology

The thoracic spine (T1–T12) is stabilised by the rib cage, making it inherently more rigid and less susceptible to disc herniation and degenerative disease compared with the cervical and lumbar regions. However, this rigidity also means that thoracic pathology — when present — often has a more serious underlying cause. The thoracic spinal canal is relatively narrow; even minor pathology can produce cord compression.

Common causes of thoracic spinal pain in Australian general practice include:

Mechanical / postural pain — the most common aetiology, especially in younger adults with sedentary occupations; myofascial pain from paraspinal and scapular stabiliser muscles
Scheuermann's disease — adolescent thoracic kyphosis due to vertebral wedging (> 5° at three consecutive vertebrae); presents with rigid kyphosis and pain
Thoracic disc herniation — rare (0.25–0.75 % of all disc herniations); may present with axial pain, radiculopathy, or myelopathy
Costovertebral joint dysfunction — localised, unilateral, reproducible pain at the costovertebral or costotransverse joint; often with rib pain
Vertebral compression fracture — particularly in older adults with osteoporosis; acute onset, focal tenderness, may follow minimal trauma
Malignancy — metastatic deposits (lung, breast, prostate, kidney, thyroid) or primary bone tumour; constant pain, worse at night, not relieved by rest
Infection — discitis, vertebral osteomyelitis, epidural abscess; may follow bacteraemia, IV drug use, or spinal procedures

Clinical Assessment — Thoracic Spine

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Clinical pearl: Thoracic spinal pain at rest — especially if constant, progressive, nocturnal (waking from sleep), or associated with unexplained weight loss — must be considered malignant or infective until proven otherwise. This contrasts with the benign nature of most cervical and lumbar presentations.

Palpation: Spinous process tenderness (focal vs diffuse), paraspinal muscle spasm, rib tenderness
Range of motion: Rotation (normal ≈ 30–35° each side), flexion-extension; pain with inspiration suggests costovertebral pathology
Neurological examination: Lower limb power, sensation, reflexes (thoracic cord compression → upper motor neuron signs in lower limbs, sensory level)
Costovertebral provocation: Pain reproduced with rotation and lateral flexion to the affected side; tenderness over the costovertebral angle
Sternal pressure test: Anterior compression of the sternum reproducing posterior thoracic pain (suggests thoracic vertebral fracture)

Differential Diagnosis — Non-Spinal Causes of Thoracic Pain

The GP must consider extra-spinal aetiologies presenting with thoracic back pain:

Acute coronary syndrome / aortic dissection
Pulmonary pathology (pneumonia, pulmonary embolism, pleurisy, Pancoast tumour)
Gastro-oesophageal reflux / oesophageal spasm
Herpes zoster (pre-vesicular phase — dermatomal pain preceding rash)
Referred visceral pain (pancreas, gallbladder, gastric)
Rib pathology (fracture, metastasis)

Lumbar-Sacral Spinal Dysfunction

Anatomy and Pathophysiology

The lumbar spine (L1–L5) bears the greatest axial load and is the most common site of spinal pain (≈ 60–80 % of all spinal presentations). The lumbosacral junction (L5–S1) is subject to significant shear forces, and the L4–5 and L5–S1 segments account for approximately 95 % of lumbar disc herniations. The sacroiliac (SI) joints connect the sacrum to the iliac bones and are a recognised source of referred buttock and lower limb pain.

Lumbar disc degeneration begins in the second decade and progresses with age. The nucleus pulposus loses hydration, the annulus fibrosus develops radial fissures, and facet joints undergo hypertrophic arthropathy. Pain may arise from discs (internal disc disruption, disc herniation with radiculopathy), facet joints (facet arthropathy), sacroiliac joints, spinal stenosis, or muscular/ligamentous structures.

Clinical Presentations

Presentation	Key Features	Typical Level	Urgency
Non-specific low back pain	Mechanical, activity-related, localised lumbosacral pain; no neurological signs; 85–90 % of presentations	L3–S1	Routine
Lumbar radiculopathy (sciatica)	Dermatomal leg pain below the knee ± paraesthesia ± motor weakness; straight-leg raise positive (L4–S1); crossed SLR highly specific	L4–5 (L5 root → dorsiflexion), L5–S1 (S1 root → plantarflexion, ankle jerk)	Urgent (if motor deficit)
Lumbar spinal stenosis	Neurogenic claudication: bilateral leg ache/heaviness on walking, relieved by sitting/spinal flexion; older adults; symptoms often exceed signs	L3–5 (central canal)	Urgent (if progressive)
Spondylolisthesis	Slipping of one vertebra on another (isthmic in young adults; degenerative in older adults); low back pain ± radiculopathy; step deformity on palpation	L4–5, L5–S1	Routine–Urgent
Sacroiliac joint dysfunction	Buttock pain ± posterior thigh (not below knee); positive provocation tests (FABER, Gaenslen's, compression, distraction); common in pregnancy	SI joint	Routine
Cauda equina syndrome	Bilateral leg pain/weakness, saddle anaesthesia, urinary retention/incontinence, faecal incontinence, reduced anal tone	Below L2 conus	Emergency — same-day surgical referral

Clinical Assessment — Lumbar-Sacral Spine

Gait assessment: Antalgic gait, Trendelenburg (L5 root → gluteus medius), heel walking (L5), toe walking (S1)
Forward flexion: Modified Schober's test (mark 10 cm above and 5 cm below L5 dimples; normal excursion ≥ 5 cm); finger-to-floor distance
Straight-leg raise (SLR): Supine, passive hip flexion with knee extended → radicular pain at 30–70° (positive); crossed SLR (pain in affected leg when contralateral leg raised) is highly specific for disc herniation
Neurological examination:

Root	Motor	Sensory	Reflex	Disc Level
L3	Knee extension (quadriceps)	Medial thigh/knee	Knee jerk	L2–3 / L3–4
L4	Knee extension, ankle dorsiflexion (tibialis anterior)	Medial leg	Knee jerk	L3–4
L5	Great toe dorsiflexion (extensor hallucis longus), ankle dorsiflexion	Lateral leg, dorsum of foot	None (no reliable reflex)	L4–5
S1	Ankle plantarflexion (gastrocnemius), eversion	Lateral foot, sole	Ankle jerk	L5–S1

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Cauda equina syndrome — surgical emergency: Suspect in any patient with low back pain and bilateral leg symptoms, saddle (perineal) sensory disturbance, urinary retention or overflow incontinence, or faecal incontinence. Perform a digital rectal examination to assess anal tone. Urgent MRI and immediate neurosurgical referral — decompression within 48 hours offers the best outcome. Delays risk permanent paralysis, bladder/bowel dysfunction, and sexual dysfunction.

Yellow Flags — Psychosocial Risk Factors for Chronicity

The following psychosocial factors ("yellow flags") predict progression from acute to chronic disability and should be assessed early:

Fear-avoidance beliefs ("I must not move or it will get worse")
Catastrophising ("This pain will never end")
Passive coping strategies (relying solely on rest and medication)
Work-related dissatisfaction or compensation/litigation issues
Low mood, anxiety, depression, or somatisation
Previous failed treatments or negative healthcare encounters
Social isolation and poor social support

Use validated tools such as the Örebro Musculoskeletal Pain Screening Questionnaire or the STarT Back Screening Tool to systematically identify these risk factors.

Investigations

Imaging Guidelines — When to Order

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Fundamental principle: Do not image uncomplicated spinal pain in the first 4–6 weeks without red flags. Incidental findings (disc degeneration, bulges, Schmorl's nodes) are near-universal in asymptomatic adults over 30 and lead to diagnostic confusion, patient anxiety, and inappropriate interventions.

MBS Available Plain radiography (X-ray) — AP and lateral views Indicated for: suspected fracture (trauma, osteoporosis), spondylolisthesis screening (lateral standing), assessment of alignment. Limited soft-tissue information. Not recommended as a routine first-line investigation for non-specific spinal pain. MBS item numbers apply per region (cervical, thoracic, lumbar).

MBS Available CT spine (with or without contrast) Indicated for: suspected fracture (superior to X-ray for bony detail), assessment of bony spinal canal stenosis, pre-surgical planning. Useful when MRI is contraindicated. MBS rebated with clinical indication.

Investigation of Choice MRI spine (without contrast as first-line) Indicated for: red flags (suspected malignancy, infection, cauda equina, myelopathy), progressive neurological deficit, radiculopathy failing 6 weeks conservative management, and pre-surgical planning. MBS items (e.g., MBS 63146 lumbar, MBS 63148 cervical) require specific criteria — GP referral accepted after minimum conservative management period with neurological signs. Contrast-enhanced MRI for suspected infection or neoplasm.

Specialist Requested CT myelography Indicated when MRI is contraindicated (pacemaker, certain metallic implants) and cord or root compression requires delineation. Specialist referral required.

MBS Available Bone densitometry (DXA) Indicated for: suspected osteoporotic vertebral fracture, fracture risk assessment in patients with thoracic pain and risk factors. MBS item 12320 with qualifying criteria.

Laboratory Investigations

Blood tests are not indicated for routine mechanical spinal pain. Order the following when red flags are present:

Test	Indication	Key Findings
FBC, ESR, CRP	Suspected infection or malignancy	Elevated WCC, ESR, CRP → infection/malignancy; anaemia → malignancy
Serum protein electrophoresis	Back pain in patient > 50 + unexplained anaemia or elevated ESR	Monoclonal band → myeloma
Serum calcium, phosphate, ALP, 25-OH vitamin D	Suspected osteoporosis or metabolic bone disease	Low vitamin D (common in Australia despite latitude), elevated ALP (Paget's)
PSA (with counselling)	Back pain in older male + suspected metastatic prostate carcinoma	Elevated PSA → urological referral
Blood cultures	Suspected spinal infection (discitis, osteomyelitis, epidural abscess)	Positive in ≈ 50–70 % of pyogenic vertebral osteomyelitis

Electrodiagnostic Studies

Nerve conduction studies (NCS) and electromyography (EMG) may be requested by specialists to differentiate radiculopathy from peripheral neuropathy or plexopathy, confirm the level of nerve root involvement, and assess severity/duration. Not required for initial GP assessment.

Red Flags and Risk Stratification

Red Flags — Requiring Urgent Investigation

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Any of the following red flags warrants prompt investigation (within 24–48 hours):

Emergency

Cauda Equina Syndrome

Saddle anaesthesia, urinary retention/incontinence, faecal incontinence, bilateral leg weakness, reduced anal tone

Setting: Emergency department — same-day MRI and neurosurgical referral

Emergency

Spinal Cord Compression / Myelopathy

Progressive gait disturbance, bilateral upper motor neuron signs, sensory level, bowel/bladder dysfunction

Setting: Emergency department — urgent MRI and neurosurgical referral

Urgent

Suspected Spinal Malignancy

Age > 50, unexplained weight loss, constant pain worse at night, personal history of cancer, failure to improve with conservative care

Setting: Urgent GP investigation — bloods + MRI within 1–2 weeks

Urgent

Suspected Spinal Infection

Fever, IV drug use, recent spinal procedure/immunosuppression, constant focal pain, elevated CRP/ESR

Setting: Urgent hospital referral — MRI with contrast, blood cultures, neurosurgical/infectious diseases input

Urgent

Significant Trauma / Fracture

Major trauma, osteoporosis with minor trauma, focal bony tenderness, neurological deficit following injury

Setting: Emergency department or urgent imaging — CT or X-ray ± MRI

Urgent

Progressive Neurological Deficit

Worsening motor power in upper or lower limbs (e.g., new foot drop, grip weakness), expanding sensory disturbance

Setting: Urgent specialist referral — MRI and neurosurgical/orthopaedic assessment

STarT Back Screening Tool — Low Back Pain Risk Stratification

The Keele STarT Back Screening Tool (SBST) is a validated 9-item tool recommended by NICE and endorsed in Australian guidelines for stratifying patients with low back pain into low, medium, and high risk of persistent disability:

Risk Category	Total Score	Psychosocial Subscore	Recommended Management
Low risk	0–3	Any	Education, reassurance, self-management, activity modification; physiotherapy if not improving
Medium risk	≥ 4	< 4	Physiotherapy (manual therapy + exercise programme); consider brief CBT-informed approach
High risk	≥ 4	≥ 4	Psychologically informed physiotherapy; combined physical and psychological management; consider pain medicine referral; address yellow flags actively

Management of Spinal Dysfunction

Principles of Management

Reassurance and Education

Explain the benign nature of most spinal pain (90 % resolves within 6 weeks). Emphasise that pain ≠ damage. Encourage return to normal activities and work as soon as possible. Avoid bed rest (≥ 1–2 days worsens outcomes).

Activity Modification (Not Rest)

Maintain gentle activity. Avoid aggravating postures/movements in the acute phase but do not adopt prolonged rest. Gradual return to exercise, work, and recreational activities.

Simple Analgesia

Paracetamol and/or NSAIDs as first-line. Consider short-term muscle relaxants for significant muscle spasm. Avoid opioids except in severe acute pain for a very short course (< 3–5 days).

Physiotherapy and Exercise

Referral for manual therapy + supervised exercise programme. GP Management Plan (item 721) and Team Care Arrangement (item 723) enable MBS-rebated allied health visits (up to 5 per calendar year).

Address Yellow Flags

Screen for psychosocial barriers. Use motivational interviewing. Consider referral to psychologist (MBS-rebated under GP Mental Health Treatment Plan) if significant anxiety, depression, or fear-avoidance.

Specialist Referral if Indicated

Red flag pathology, progressive neurological deficit, failure of 6–12 weeks optimal conservative care. Refer to neurosurgery, orthopaedic spine, pain medicine, or rheumatology as appropriate.

Pharmacological Management

First-Line Analgesics

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Paracetamol

Panadol® · Dymadon® · Analgesic

Adult dose 500 mg–1 g PO QID PRN (max 4 g/day); 1 g QID scheduled for moderate-severe pain

Paediatric dose 15 mg/kg/dose QID (max 60 mg/kg/day)

Route PO (oral); PR (rectal) if unable to swallow

Duration As required; reassess at 2 weeks

Renal adjustment eGFR 10–50: extend interval to Q6–8H; eGFR < 10: extend to Q8H; max 2 g/day in severe hepatic impairment

PBS status ✔ PBS General Benefit

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Ibuprofen

Nurofen® · Brufen® · NSAID

Adult dose 200–400 mg PO TDS with food (max 1.2 g/day OTC; 2.4 g/day prescription)

Paediatric dose 5–10 mg/kg/dose TDS (max 30 mg/kg/day)

Route PO

Duration Shortest effective course; review at 1–2 weeks

Renal adjustment Avoid if eGFR < 30; use with caution in eGFR 30–60; ensure adequate hydration

Key cautions GI bleeding risk (use with PPI if high risk), cardiovascular risk, asthma (aspirin-sensitive), interactions with anticoagulants, lithium, ACE inhibitors

PBS status ✔ PBS General Benefit

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Naproxen

Naprosyn® · Inza® · NSAID

Adult dose 250–500 mg PO BD with food (max 1 g/day)

Route PO

Duration Shortest effective course; review at 1–2 weeks

Renal adjustment Avoid if eGFR < 30; cautions as per ibuprofen

Advantage BD dosing improves adherence; lower CV risk than diclofenc among traditional NSAIDs

PBS status ✔ PBS General Benefit

Short-Term Muscle Relaxants

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Diazepam

Valium® · Antispasmodic (short course only)

Adult dose 2–5 mg PO BD-TDS (max 15–20 mg/day) for acute muscle spasm

Route PO

Duration ≤ 5–7 days only; do not prescribe ongoing

Key cautions Sedation, falls risk (especially in elderly), dependence potential, avoid in myasthenia gravis, respiratory impairment; do not combine with opioids

PBS status ⚠ PBS Restricted Benefit (for muscle spasm)

Neuropathic Pain Agents (for Radiculopathy / Chronic Pain)

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Amitriptyline

Endep® · Tryptanol® · Tricyclic antidepressant

Adult dose 10 mg nocte, titrate by 10 mg every 1–2 weeks to 25–75 mg nocte (neuropathic pain dose lower than antidepressant dose)

Paediatric dose Not routinely recommended for pain in children

Route PO

Duration Minimum 4–6 weeks at therapeutic dose to assess efficacy; continue if effective

Key cautions Dry mouth, constipation, sedation, urinary retention, weight gain; avoid in cardiac conduction defects; caution in elderly (Beers criteria)

PBS status ✔ PBS General Benefit

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Pregabalin

Lyrica® · Anticonvulsant / neuropathic pain

Adult dose 75 mg PO BD, titrate to 150 mg BD after 3–7 days; max 300 mg BD for neuropathic pain

Route PO

Duration Minimum 4–8 weeks trial at therapeutic dose

Renal adjustment eGFR 30–60: max 75–150 mg BD; eGFR 15–30: max 25–75 mg BD; eGFR < 15: max 25 mg OD–BD

Key cautions Dizziness, somnolence, peripheral oedema, weight gain, blurred vision; taper dose when ceasing (do not stop abruptly); abuse potential (Schedule 4)

PBS status 🔒 PBS Authority Required (neuropathic pain — streamlined authority code 3344)

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Duloxetine

Cymbalta® · SNRI / neuropathic pain

Adult dose 30 mg PO OD for 1 week, then increase to 60 mg PO OD; max 120 mg OD

Route PO (enteric-coated capsule; do not crush)

Duration Minimum 8 weeks at therapeutic dose; continue if effective

Key cautions Nausea (most common; transient), dry mouth, dizziness; avoid in severe hepatic impairment, uncontrolled hypertension; serotonin syndrome risk with concurrent serotonergic agents; taper when discontinuing

PBS status 🔒 PBS Authority Required (neuropathic pain or MUD)

Short-Course Corticosteroids (Acute Radiculopathy)

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Prednisolone

Panafcortelone® · Solone® · Oral corticosteroid

Adult dose 40–50 mg PO OD for 5–7 days, then taper over 5–7 days (total course 10–14 days)

Route PO

Duration 10–14 days (short course for acute radiculopathy with significant pain)

Key cautions Hyperglycaemia (caution in diabetes), GI irritation, insomnia, mood disturbance; avoid in active infection, peptic ulcer disease; concurrent PPI recommended if GI risk

Note Evidence for efficacy in acute radiculopathy is modest; consider on a case-by-case basis when pain is severe and limiting function

PBS status ✔ PBS General Benefit

Non-Pharmacological Management

Intervention	Evidence Level	Indication	Australian Access
Physiotherapy (manual therapy + exercise)	Strong	All spinal pain; acute, subacute, chronic	GPMP/TCA items 721/723 (up to 5 allied health visits/year MBS-rebated)
Structured exercise programme	Strong	Chronic low back pain; prevention of recurrence	Physiotherapy, exercise physiology (item 10950 under GPMP/TCA)
Cognitive behavioural therapy (CBT)	Strong (for chronic pain)	Yellow flags, high STarT Back score, chronic pain with psychological overlay	MBS-rebated under GP Mental Health Treatment Plan (items 80000–80020)
Acupuncture	Moderate	Chronic low back pain as adjunct; neck pain	Not MBS-rebated; private health insurance may cover
Spinal manipulation (chiropractic/osteopathy)	Moderate (acute LBP)	Acute low back pain; some benefit for neck pain	Not MBS-rebated; private health insurance extras
Yoga / Pilates	Moderate	Chronic low back pain; flexibility and core stability	Not MBS-rebated; community programmes
Heat therapy (superficial)	Low–moderate	Acute/subacute low back pain, neck pain	Self-funded (heat packs, warm baths)

Interventional Procedures — Specialist Referral

The following interventional procedures are performed by pain medicine specialists, radiologists, or spinal surgeons and are not initiated by the GP. Awareness of their indications supports appropriate referral:

Epidural corticosteroid injection (transforaminal or interlaminar): For radiculopathy failing 6 weeks of conservative care. Provides short-to-medium-term pain relief (weeks to months). MBS rebated under pain medicine specialist or radiologist item numbers.
Facet joint injection / medial branch block: Diagnostic and therapeutic for facet joint-mediated axial pain. Diagnostic blocks (two levels) required before considering radiofrequency neurotomy.
Radiofrequency neurotomy (denervation): For confirmed facet joint pain (positive medial branch blocks). Provides longer-term relief (6–12 months). Cervical (C2–C6) and lumbar (L3–S1) levels.
Sacroiliac joint injection: Diagnostic and therapeutic for sacroiliac joint dysfunction. Ultrasound- or fluoroscopy-guided.
Trigger point injections: Myofascial trigger points with local anaesthetic ± corticosteroid. Limited evidence; adjunctive role.

Surgical Referral Criteria

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Surgical referral to neurosurgery or orthopaedic spine is indicated for the following — refer via the appropriate state/territory public hospital specialist outpatient service or directly to a private specialist:

Absolute indications: Cauda equina syndrome (emergency), progressive myelopathy, spinal cord compression with neurological deficit, unstable fracture/dislocation
Strong indications: Progressive motor deficit (e.g., foot drop, grip weakness) due to radiculopathy, significant spinal stenosis with intractable neurogenic claudication
Relative indications: Intractable radicular pain failing ≥ 6–12 weeks optimal conservative care (including epidural injections), spondylolisthesis with instability and pain, recurrent disc herniation with neurological signs
Not routinely indicated: Non-specific low back pain without red flags, degenerative disc disease without radiculopathy or myelopathy, mild spinal stenosis responsive to conservative measures

Monitoring and Follow-Up

Acute presentations: Review at 2 weeks to assess treatment response, reinforce activity modification, and screen for red flag development
Subacute (2–6 weeks): If not improving, reassess diagnosis, consider imaging (if not already done and red flags absent for ≥ 4–6 weeks), initiate physiotherapy referral, consider pharmacological escalation
Chronic (> 6–12 weeks): Comprehensive biopsychosocial reassessment; STarT Back tool; consider pain medicine referral; review medications; screen for comorbid depression/anxiety; discuss self-management strategies
Ongoing: Periodic review every 1–3 months for chronic management; annual review of medication need; goal setting and functional outcome measures (e.g., Oswestry Disability Index, Neck Disability Index)
Opioid stewardship: Avoid long-term opioids for spinal pain. If opioids are prescribed for severe acute pain, limit to < 3–5 days and reassess. Refer to state real-time prescription monitoring (e.g., SafeScript VIC, ScriptCheck SA, QScript QLD) before prescribing Schedule 8 medicines.

Special Populations

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Pregnancy

Low back and pelvic girdle pain affects up to 50–70 % of pregnancies; most commonly from 2nd trimester onwards.

Paracetamol is safe throughout pregnancy. Avoid NSAIDs (especially in 3rd trimester — risk of premature ductus arteriosus closure and oligohydramnios).

Avoid diazepam (teratogenic risk in 1st trimester; neonatal withdrawal in 3rd trimester).

Physiotherapy and pelvic stability exercises are first-line. Pregnancy-specific exercise classes and aquatic therapy.

Pelvic girdle pain — sacroiliac and symphysis pubis dysfunction; respond to pelvic belt, manual therapy, and targeted exercises.

MRI without contrast is considered safe in pregnancy if indicated. Avoid gadolinium contrast.

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Paediatrics

Back pain in children < 10 years is uncommon and warrants investigation (infection, tumour, spondylolisthesis).

Adolescents — consider Scheuermann's disease (thoracic kyphosis), spondylolysis/pars interarticularis defect (gymnasts, fast bowlers), disc herniation (less common).

Paracetamol 15 mg/kg/dose QID is safe. NSAIDs (ibuprofen 5–10 mg/kg TDS) may be used short-term in children > 3 months.

Avoid diazepam, gabapentinoids, and TCAs for spinal pain in paediatric populations.

Spondylolisthesis screening — standing lateral X-ray; referral to paediatric orthopaedics if slip > 50 %.

Red flags in children: night pain, systemic symptoms, weight loss, neurological signs, age < 4 years — always investigate.

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Elderly

Vertebral compression fractures are common; may be asymptomatic or present with acute focal pain. Height loss and kyphosis are clues. DXA scan indicated.

Lumbar spinal stenosis is the most common cause of spinal surgery in adults > 65 years. Neurogenic claudication is the hallmark.

NSAIDs: Use with extreme caution. Higher GI bleeding and renal risk. If essential, use lowest dose for shortest duration with PPI cover.

Diazepam / muscle relaxants: Avoid if possible — high falls risk, cognitive impairment, prolonged half-life in elderly.

Amitriptyline: Beers criteria medication in elderly — use low dose (≤ 25 mg), monitor for anticholinergic effects, falls, confusion.

Opioids: Increased sensitivity, falls risk, constipation, respiratory depression. Avoid if possible; if necessary, use low-dose tramadol with monitoring.

Thoracic back pain at rest in elderly patients — always exclude vertebral fracture (X-ray) and malignancy (bloods, MRI if indicated).

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Renal Impairment

NSAIDs: Contraindicated if eGFR < 30; use with caution in eGFR 30–60. Risk of AKI, fluid retention, hyperkalaemia.

Pregabalin: Requires dose reduction — see renal adjustment above. Dose proportional to eGFR.

Gabapentin: Significant renal clearance — dose reduce substantially in CKD (100–200 mg OD if eGFR < 15).

Paracetamol: Safe at standard doses; reduce max dose to 2 g/day in severe hepatic impairment.

Refer to nephrology if renal function deteriorates or for advice on medication dosing in advanced CKD.

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Hepatic Impairment

Paracetamol: Reduce maximum dose to 2 g/day in severe hepatic impairment, chronic alcohol use, or malnutrition.

NSAIDs: Increased risk of hepatotoxicity and GI bleeding; avoid if possible in chronic liver disease.

Duloxetine: Contraindicated in severe hepatic impairment.

Diazepam: Prolonged half-life in hepatic impairment; use reduced doses with caution.

Amitriptyline is hepatically metabolised — use lower doses; monitor for toxicity.

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Immunocompromised

Spinal infection risk is significantly elevated in immunocompromised patients (transplant recipients, HIV, chemotherapy, biologics, chronic corticosteroids).

Low threshold for MRI and inflammatory markers (CRP, ESR) in any immunocompromised patient with new or worsening back pain.

Atypical organisms — consider TB (Mycobacterium tuberculosis), fungal infections (Aspergillus, Cryptococcus), and unusual bacteria.

Vertebral osteomyelitis — prolonged IV antibiotic courses (6 weeks typically); infectious diseases and neurosurgical co-management essential.

Corticosteroid courses — consider infection risk before prescribing; avoid in active untreated infection.

Aboriginal and Torres Strait Islander Health Considerations

Aboriginal and Torres Strait Islander peoples experience musculoskeletal conditions, including spinal dysfunction, at significantly higher rates than the non-Indigenous Australian population. The AIHW reports that Indigenous Australians are 1.4 times more likely to experience back problems, with prevalence increasing markedly from age 35 years. The burden is compounded by higher rates of comorbidities (diabetes, cardiovascular disease, renal disease, obesity) and socioeconomic disadvantage.

Healthcare Access

Many Aboriginal and Torres Strait Islander people, particularly those in rural and remote communities (≈ 35 % of the Indigenous population), have limited access to GPs, physiotherapists, pain medicine specialists, and spinal surgeons. Wait times for specialist outpatient appointments in public hospitals may exceed 12 months. Telehealth (MBS items 99200–99215) is a critical adjunct but requires reliable internet connectivity — often absent in remote communities.

Allied Health Access

Physiotherapy services are scarce in many remote Aboriginal Community Controlled Health Services (ACCHS). Aboriginal Health Practitioners (AHPs) and Aboriginal Health Workers (AHWs) can be trained in musculoskeletal screening and exercise prescription. The Indigenous Allied Health Australia (IAHA) workforce pipeline remains under-resourced. The Close the Gap PBS Co-Payment Program reduces medication costs for PBS-eligible patients attending ACCHS.

Cultural Safety

Pain communication styles may differ; avoidance of direct eye contact, stoicism, and different conceptual frameworks for pain (including spiritual and relational dimensions) must be respected. Gender considerations are important — many Aboriginal women prefer female practitioners for spinal examination, particularly for lumbar and pelvic assessments. Yarning-based consultations support trust-building and shared decision-making.

Chronic Disease Burden

Higher rates of obesity, physical inactivity, diabetes, and smoking contribute to earlier onset and greater severity of spinal degenerative disease. Multimorbidity complicates pharmacological management (e.g., renal impairment limiting NSAID use; diabetes increasing corticosteroid risk). Integrated, holistic care models within ACCHS are preferred.

Traditional Healing

Some Aboriginal and Torres Strait Islander patients may seek or concurrently use traditional healing practices alongside Western medicine. This should be respected and integrated into the management plan where safe. Open, non-judgemental discussion about concurrent treatments supports medication safety and therapeutic alliance.

Screening and Prevention

Opportunistic musculoskeletal screening during routine chronic disease health checks (MBS Item 715 — Aboriginal and Torres Strait Islander health assessment) enables early identification of spinal dysfunction and risk factors. Promote culturally appropriate exercise programmes, smoking cessation, weight management, and ergonomic workplace assessments.

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Practice tip: Engage with local Aboriginal Community Controlled Health Services (ACCHS) and Aboriginal Health Practitioners to develop integrated care pathways for spinal dysfunction. Use MBS Item 715 for comprehensive health assessments and items 721/723 for GP Management Plans and Team Care Arrangements that enable MBS-rebated allied health access, including physiotherapy and exercise physiology.

📚 References

1. Australian Institute of Health and Welfare (AIHW). Back problems. AIHW, Canberra; 2023. Available from: https://www.aihw.gov.au/reports/chronic-musculoskeletal-conditions/back-problems
2. Foster NE, Anema JR, Cherkin D, et al. Prevention and treatment of low back pain: evidence, challenges, and promising directions. Lancet. 2018;391(10137):2368–2383.
3. National Institute for Health and Care Excellence (NICE). Low back pain and sciatica in over 16s: assessment and management [NG59]. NICE, London; 2016 (updated 2020).
4. Hill JC, Whitehurst DG, Lewis M, et al. Comparison of stratified primary care management for low back pain with current best practice (STarT Back): a randomised controlled trial. Lancet. 2011;378(9802):1560–1571.
5. Stiell IG, Wells GA, Vandemheen KL, et al. The Canadian C-spine rule for radiography in alert and stable trauma patients. JAMA. 2001;286(15):1841–1848.
6. Royal Australian College of General Practitioners (RACGP). Guidelines for preventive activities in general practice (Red Book). 9th edn. RACGP, Melbourne; 2018.
7. Chou R, Qaseem A, Snow V, et al. Diagnosis and treatment of low back pain: a joint clinical practice guideline from the American College of Physicians and the American Pain Society. Ann Intern Med. 2007;147(7):478–491.
8. Australian Commission on Safety and Quality in Health Care (ACSQHC). Osteoarthritis of the knee clinical care standard. ACSQHC, Sydney; 2017. (Referenced for general musculoskeletal care quality framework.)
9. Australian Institute of Health and Welfare (AIHW). Aboriginal and Torres Strait Islander Health Performance Framework. AIHW, Canberra; 2023.
10. Traeger AC, Hübscher M, Henschke N, et al. Effect of primary care-based education on reassurance in patients with acute low back pain: systematic review and meta-analysis. JAMA Intern Med. 2015;175(5):733–743.
11. Cohen SP, Bhatia A, Buvanendran A, et al. Consensus guidelines on the use of intravenous ketamine infusions for chronic pain from the American Society of Regional Anesthesia and Pain Medicine, the American Academy of Pain Medicine, and the American Society of Anesthesiologists. Reg Anesth Pain Med. 2018;43(5):521–546. (Referenced for interventional pain management context.)
12. Buchbinder R, van Tulder M, Öberg B, et al. Low back pain: a call for action. Lancet. 2018;391(10137):2384–2388.
13. Department of Health and Aged Care, Australian Government. Medicare Benefits Schedule (MBS) Online. Canberra; 2024. Available from: http://www.mbsonline.gov.au
14. Deyo RA, Mirza SK, Turner JA, Martin BI. Overtreating chronic back pain: time to back off? J Am Board Fam Med. 2009;22(1):62–68.
15. Briggs AM, Jordan JE, Buchbinder R, et al. Health literacy and beliefs among a community cohort with and without chronic low back pain. Pain. 2010;150(2):275–283.