📋 Key Information Summary
- Plantar fasciitis is the most common cause of heel pain in adults, accounting for up to 80 % of presentations; self-limiting in most patients within 12 months with conservative management.
- Achilles tendinopathy affects 6–18 % of recreational runners in Australia; eccentric loading exercises are the cornerstone of rehabilitation.
- Achilles tendon rupture requires urgent assessment — a positive Thompson test mandates same-day orthopaedic or sports-medicine referral.
- Ankle sprains are the most common musculoskeletal injury presenting to Australian emergency departments; the Ottawa Ankle Rules guide the need for imaging.
- Use a region-based diagnostic model (hindfoot → midfoot → forefoot → ankle) to narrow differentials systematically in primary care.
- Sever's disease (calcaneal apophysitis) is the most common cause of heel pain in active children aged 8–14 years and is managed conservatively.
- Köhler's disease (navicular avascular necrosis) and Freiberg's disease (metatarsal head AVN) are rare but important paediatric diagnoses to consider.
- Plain X-ray is first-line for trauma and bony pathology; musculoskeletal ultrasound is the investigation of choice for tendon and soft-tissue assessment.
- First-line pharmacotherapy is oral paracetamol ± topical NSAIDs; oral NSAIDs (short course) or COX-2 inhibitors for moderate–severe pain in the absence of contraindications.
- Corticosteroid injection for plantar fasciitis provides short-term relief but carries a risk of plantar fascia rupture; ultrasound guidance is recommended.
- Aboriginal and Torres Strait Islander Australians have disproportionately high rates of diabetes-related foot complications; culturally safe podiatry access and the MBS Chronic Disease Management items are critical.
- Red flags requiring urgent referral: suspected Charcot neuroarthropathy, open fracture, compartment syndrome, suspected Lisfranc injury, and diabetic foot ulcer with signs of infection or ischaemia.
Introduction & Australian Epidemiology
Foot and ankle pain is one of the most common musculoskeletal presentations in Australian general practice, accounting for an estimated 3–5 % of all GP encounters. The foot and ankle complex comprises 26 bones, 33 joints, and more than 100 muscles, tendons and ligaments, making clinical diagnosis challenging without a structured approach. Causes range from acute traumatic injuries (sprains, fractures) to chronic overuse conditions (tendinopathy, plantar fasciitis) and inflammatory or systemic disorders (gout, rheumatoid arthritis).
In Australia, ankle sprains represent the single most common sporting injury, with lateral ligament injuries accounting for approximately 85 % of all ankle sprains. Plantar fasciitis has an estimated lifetime prevalence of 10 % in the general population and is the most frequent cause of heel pain presenting to primary care. Achilles tendinopathy affects up to 6–18 % of recreational runners and is increasingly recognised in sedentary and overweight populations. In children and adolescents, Sever's disease (calcaneal apophysitis) is the leading cause of heel pain, particularly in those participating in running and jumping sports.
The burden of foot pathology is disproportionately high in Aboriginal and Torres Strait Islander Australians, driven by higher prevalence of diabetes, peripheral vascular disease, obesity and limited access to podiatric services in rural and remote communities. The Australian Institute of Health and Welfare (AIHW) reports that diabetic foot complications are a leading cause of preventable hospitalisation in Indigenous Australians.
Lisfranc injury — commonly missed: Midfoot pain after a low-energy mechanism (e.g. twisting on a planted foot) should prompt weight-bearing X-rays. Misdiagnosis as a "midfoot sprain" leads to significant morbidity and medicolegal risk. Refer urgently if suspected.
Painful Foot & Ankle Diagnostic Model
A systematic, region-based approach to foot and ankle pain enables the clinician to generate a focused differential diagnosis. The following four-step model is recommended for Australian primary care settings.
1
History & Mechanism
Identify onset (acute vs insidious), mechanism (traumatic vs overuse), aggravating/relieving factors, footwear, activity level, occupation, and comorbidities (diabetes, gout, RA).
2
Localise the Region
Determine whether pain originates from the hindfoot, midfoot, forefoot, or ankle. Use tenderness on palpation and functional anatomy to narrow the site.
3
Targeted Examination
Perform provocative tests relevant to the region (Thompson test, Windlass test, squeeze test, anterior drawer). Assess neurovascular status, alignment, swelling, and gait.
4
Investigate & Decide
Apply Ottawa Ankle Rules for trauma. Order X-ray for suspected fracture, ultrasound for soft-tissue pathology, MRI for occult fracture or complex presentations. Refer if red flags are present.
Region-Based Differential Diagnosis
| Region | Common Differentials | Key Clinical Clue |
|---|---|---|
| Hindfoot / Heel | Plantar fasciitis, calcaneal stress fracture, fat pad atrophy, Baxter's nerve entrapment, retrocalcaneal bursitis | First-step pain (fasciitis); medial heel tenderness (fasciitis); sub-heel tenderness (fat pad); posterior heel swelling (bursitis) |
| Midfoot | Lisfranc injury, midfoot osteoarthritis, navicular stress fracture, tarsal coalition | Dorsal midfoot tenderness + swelling after twist (Lisfranc); activity-related medial midfoot pain (navicular) |
| Forefoot | 1st MTP gout, hallux rigidus, Morton's neuroma, metatarsal stress fracture, Freiberg's disease, sesamoiditis | Acute red, swollen 1st MTP (gout); forefoot splaying + interdigital numbness (Morton's); dorsal MTP pain (Freiberg's) |
| Ankle | Lateral ligament sprain, high ankle (syndesmotic) sprain, anterior impingement, peroneal tendon dislocation, tibialis posterior dysfunction | Inversion injury + anterolateral tenderness (ATFL); pain with external rotation (syndesmotic); medial arch collapse (PTT dysfunction) |
| Posterior Ankle | Achilles tendinopathy, Achilles rupture, posterior ankle impingement, os trigonum syndrome | Palpable gap + inability to single-leg heel raise (rupture); pain with forced plantarflexion (impingement) |
Red flags requiring urgent assessment:
- Suspected open fracture or dislocation
- Signs of compartment syndrome (pain out of proportion, tense swelling, paraesthesia)
- Acute hot, swollen joint with systemic features (septic arthritis until proven otherwise)
- Diabetic foot with cellulitis, deep infection, or critical ischaemia (urgent podiatry/vascular referral)
- Suspected Charcot neuroarthropathy (acute hot, swollen, deformed foot in a neuropathic patient)
- Night pain, unexplained weight loss, or a mass (consider malignancy)
Ottawa Ankle Rules (for Acute Trauma)
The Ottawa Ankle Rules are validated for use in Australian emergency departments and primary care. They reduce unnecessary X-rays by approximately 30 % without missing clinically significant fractures.
| X-ray Indication | Ankle Series | Foot Series |
|---|---|---|
| Bone tenderness | Posterior edge or tip of lateral malleolus (distal 6 cm) OR posterior edge or tip of medial malleolus (distal 6 cm) | Base of 5th metatarsal OR navicular bone |
| Weight-bearing | Unable to bear weight for 4 steps both immediately and in the emergency department / clinic | Unable to bear weight for 4 steps both immediately and in the emergency department / clinic |
Note: The Ottawa Rules should not be applied to patients aged <18 years, pregnant women, or those with isolated skin injuries over the malleoli.
Plantar Fasciitis & Heel Pain
Plantar fasciitis (more accurately termed plantar heel pain or plantar fasciopathy) is the most common cause of heel pain in adults, representing up to 80 % of heel pain presentations in Australian general practice. It is a degenerative enthesopathy of the plantar fascia at its calcaneal origin, rather than a true inflammatory condition. Peak incidence occurs between ages 40–60 years, and it affects both active and sedentary individuals.
Risk Factors
- Obesity (BMI >30 kg/m²) — strongest modifiable risk factor
- Prolonged standing or weight-bearing occupations
- Pes planus (flat foot) or pes cavus (high arch)
- Reduced ankle dorsiflexion (<10°)
- Running or sudden increase in training load
- Diabetes mellitus (plantar fascia thickening is associated with diabetic cheiroarthropathy)
Clinical Presentation
The hallmark symptom is first-step pain — pain in the medial plantar heel that is worst with the first steps after rest (e.g. getting out of bed in the morning) and improves with gentle activity. Pain may return after prolonged standing or at the end of the day. Examination reveals tenderness at the medial calcaneal tubercle, a positive Windlass test (pain with passive dorsiflexion of the great toe), and a normal neurovascular examination.
Consider alternative diagnoses if there is bilateral heel pain, night pain, rest pain, systemic symptoms (fatigue, weight loss), or neurological signs. Differential diagnoses include seronegative spondyloarthropathy (especially in younger patients with bilateral heel pain), calcaneal stress fracture, tarsal tunnel syndrome, and rarely calcaneal malignancy.
Grading Severity
Mild
Early Plantar Fasciopathy
First-step pain resolves within 15–30 minutes of activity. No functional limitation. Symptoms < 6 weeks.
Setting: General practice — education, stretching, footwear advice
Moderate
Established Plantar Fasciopathy
Pain with prolonged standing and at end of day. Difficulty with sport or occupational tasks. Symptoms 6–12 weeks.
Setting: GP ± physiotherapy / podiatry referral; consider orthotics, taping, corticosteroid injection
Severe
Chronic Refractory Plantar Fasciopathy
Constant pain, significant functional limitation, unable to work or exercise. Symptoms > 3 months despite conservative therapy.
Setting: Sports medicine / orthopaedic referral — consider shockwave therapy, PRP, surgical release
Management
Management follows a stepped approach. Approximately 80–90 % of patients improve within 12 months with conservative treatment.
First-Line (Weeks 0–6)
- Patient education: Reassurance that the condition is self-limiting; avoid complete rest but modify aggravating activities.
- Stretching programme: Plantar fascia-specific stretch (knee extended, pull toes into dorsiflexion, hold 30 seconds × 3 reps, 3 times daily) and calf/gastrocnemius-soleus stretches.
- Footwear advice: Supportive shoes with adequate cushioning and arch support; avoid flat thongs and barefoot walking on hard surfaces.
- Taping / strapping: Low-Dye taping provides short-term symptom relief and can confirm diagnosis.
- Analgesia: Paracetamol PRN; topical NSAIDs for localised pain; short-course oral NSAIDs for moderate pain.
Second-Line (Weeks 6–12)
- Podiatry referral for custom or prefabricated orthotics with medial arch support and heel cushioning.
- Physiotherapy referral for supervised eccentric loading, manual therapy, and gait retraining.
- Night splints (dorsiflexion splint) — evidence is moderate but may benefit patients with significant morning pain.
- Corticosteroid injection: Ultrasound-guided injection of the plantar fascia origin provides short-term relief (up to 4–6 weeks). Use with caution — risk of plantar fascia rupture and fat pad atrophy with repeated injections (maximum 2–3 injections, minimum 6 weeks apart).
Third-Line / Refractory (Beyond 12 Weeks)
- Extracorporeal shockwave therapy (ESWT): Evidence supports moderate benefit for chronic plantar fasciopathy (>3 months). Typically requires 3–5 sessions weekly. Not PBS-listed; out-of-pocket cost applies.
- Platelet-rich plasma (PRP) injection: Emerging evidence for refractory cases; not PBS-listed. Performed by sports medicine physician or orthopaedic surgeon.
- Surgical referral: Plantar fascia release (endoscopic or open) is considered only after 6–12 months of failed conservative therapy. Discuss risks including arch instability and nerve injury.
Pharmacotherapy for Plantar Fasciitis
Paracetamol
Panadol® · Panamax® · Analgesic
Adult dose
500–1000 mg PO every 4–6 hours PRN; max 4 g/day
Paediatric dose
15 mg/kg/dose every 4–6 hours PRN; max 60 mg/kg/day
Renal adjustment
Dose interval increase if eGFR < 10 mL/min
Hepatic adjustment
Max 2 g/day in significant hepatic impairment; avoid in severe liver disease
PBS status
✔ PBS General Benefit
Ibuprofen
Nurofen® · Brufen® · NSAID
Adult dose
200–400 mg PO every 6–8 hours with food; max 2.4 g/day; short course (5–7 days)
Paediatric dose
5–10 mg/kg/dose every 6–8 hours; max 30 mg/kg/day
Renal adjustment
Avoid if eGFR < 30 mL/min
Hepatic adjustment
Avoid in severe hepatic impairment
PBS status
✔ PBS General Benefit
Diclofenac topical (1 % gel)
Voltaren Emulgel® · Topical NSAID
Adult dose
2–4 g applied to heel/sole every 6–8 hours; max 16 g/day per site
Paediatric dose
Not recommended < 12 years
Renal adjustment
Minimal systemic absorption; caution if eGFR < 30
Hepatic adjustment
Minimal systemic absorption; caution in severe hepatic impairment
PBS status
✔ PBS General Benefit
Methylprednisolone acetate (injection)
Depo-Medrol® · Corticosteroid (local injection)
Adult dose
20–40 mg ultrasound-guided injection to plantar fascia origin; mixed with 1–2 mL 1 % lignocaine
Paediatric dose
Not routinely used in paediatric plantar heel pain
Frequency
Maximum 2–3 injections; minimum 6 weeks apart
Key risk
Plantar fascia rupture; fat pad atrophy with repeated injections
PBS status
⚠ Authority Required
Achilles Tendinopathy & Ruptured Achilles Tendon
Achilles tendinopathy and rupture represent a spectrum of Achilles tendon pathology. Tendinopathy is a chronic degenerative condition (tendinosis) often precipitated by overuse, while acute rupture typically occurs in recreational athletes aged 30–50 years during explosive sporting activities. Both conditions are commonly managed in Australian general practice and sports medicine settings.
Classification
| Condition | Location | Pathology | Typical Population |
|---|---|---|---|
| Midportion tendinopathy | 2–6 cm proximal to insertion | Collagen disorganisation, neovascularisation, mucoid degeneration | Runners, jumping athletes, middle-aged adults |
| Insertional tendinopathy | At calcaneal insertion | Enthesopathy ± retrocalcaneal bursitis ± Haglund's deformity | Older, less active adults; may be associated with seronegative SpA |
| Acute rupture | Typically mid-substance | Complete or near-complete tear | Males 30–50 years; weekend sports (squash, basketball, tennis) |
Achilles Tendinopathy — Presentation & Diagnosis
Patients report localised pain and stiffness in the Achilles tendon, characteristically worse after rest and with initial activity, improving with gentle warm-up, then worsening again with prolonged or intense activity. Examination reveals a thickened, tender tendon (often palpably nodular in midportion tendinopathy). The Royal Melbourne Hospital Painful Arc sign helps distinguish intratendinous pathology (pain arc present — tendon and examiner's finger move together) from paratendinopathy (pain arc absent — pain is fixed relative to the skin).
Achilles Tendon Rupture — Presentation & Diagnosis
Acute rupture presents with sudden onset of pain in the posterior ankle, often described as being "kicked" or "shot" in the calf. Patients may report an audible snap. They are unable to continue activity and often cannot bear weight. Key examination findings:
- Thompson test (squeeze test): Patient prone, knee flexed to 90°; squeeze the calf — absence of plantarflexion is a positive test (sensitivity 96 %, specificity 93 %).
- Palpable gap in the tendon (may be masked by haematoma).
- Inability to perform a single-leg heel raise on the affected side.
- Reduced resting plantarflexion angle compared to the contralateral side.
Achilles tendon rupture requires urgent referral. Patients should be placed in a below-knee equinus (plantarflexed) splint or CAM boot immediately and referred to orthopaedics or sports medicine on the same day. Delayed diagnosis (> 2 weeks) significantly worsens outcomes, whether managed conservatively or surgically.
Achilles Tendinopathy — Management
First-Line: Eccentric Loading Programme
The Alfredson eccentric protocol is the gold-standard non-operative treatment for midportion Achilles tendinopathy. It involves:
- Standing on the edge of a step, rising up on both feet, then slowly lowering the affected heel below the step level.
- 3 sets × 15 repetitions, twice daily, for 12 weeks.
- Performed with a straight knee (targets gastrocnemius) and a bent knee (targets soleus).
- Should provoke moderate discomfort (VAS 3–5/10) — if pain-free, increase load.
For insertional tendinopathy, the modified protocol avoids dorsiflexion below neutral to prevent compression of the tendon against the calcaneus.
Adjuncts
- Load management: Reduce provocative activity by 50–70 %; do not rest completely. Graduated return to sport using a pain-monitoring model (acceptable pain ≤ 5/10 during activity, returning to baseline within 24 hours).
- Heel lifts: 12–15 mm heel raise in both shoes to reduce tendon strain during the acute phase.
- Physiotherapy referral for supervised eccentric programme, soft-tissue mobilisation, and progressive strengthening.
- Analgesia: Paracetamol and/or topical NSAIDs. Avoid prolonged oral NSAIDs (may impair tendon healing).
Second-Line / Refractory
- Extracorporeal shockwave therapy (ESWT): Reasonable evidence for both midportion and insertional tendinopathy. 3–5 sessions, weekly intervals.
- Ultrasound-guided procedures: High-volume injection, sclerosing injection (polidocanol), or PRP injection — evidence is variable; typically performed by sports medicine physicians.
- Surgical referral: Considered after 6+ months of failed conservative therapy. Options include debridement ± tendon transfer (FHL) for chronic tendinopathy.
Achilles Tendon Rupture — Management
Both operative and non-operative management can achieve good outcomes. Decision-making is individualised based on patient age, activity level, functional demands, and shared preference.
Conservative
Functional Bracing (CAM Boot)
Modern accelerated rehabilitation protocol. CAM boot with wedges, progressive wedge removal over 6–8 weeks, early weight-bearing, physiotherapy-guided strengthening from week 8.
Setting: Orthopaedic / sports medicine follow-up; suitable for lower-demand patients > 55 years
Surgical
Surgical Repair
Open or percutaneous repair. Lower re-rupture rate (~2–5 % vs ~8–12 % conservative) but higher complication rate (wound infection, sural nerve injury). Accelerated rehab protocol post-op.
Setting: Orthopaedic surgery — recommended for active patients < 60 years, athletes, and high-demand occupations
Fluoroquinolone antibiotics (ciprofloxacin, moxifloxacin) and corticosteroids (oral or injected around the tendon) are associated with increased risk of Achilles tendon rupture. Avoid fluoroquinolone–tendon combinations where possible, particularly in patients aged > 60 years.
Foot Pain in Children (Sever's, Köhler's, Freiberg's Disease)
Foot pain in children and adolescents is a common presentation in Australian general practice. Unlike adults, children have open growth plates and developing ossification centres, making them susceptible to apophysitis and avascular necrosis (osteochondrosis) conditions that do not occur in adults. A high index of suspicion is required, as children may have difficulty localising their pain.
Sever's Disease (Calcaneal Apophysitis)
Sever's disease is the most common cause of heel pain in children, typically affecting active children aged 8–14 years (boys slightly more than girls). It is an overuse traction apophysitis of the calcaneal apophysis, occurring during the period of rapid growth when the apophysis is biomechanically vulnerable.
- Symptoms: Heel pain during or after sport, worse with running and jumping. Pain is bilateral in approximately 60 % of cases.
- Examination: Tenderness at the postero-inferior calcaneus (insertion of the Achilles tendon). Positive squeeze test (medial-lateral compression of the calcaneus reproduces pain). Pain with resisted plantarflexion.
- Imaging: Diagnosis is clinical. X-ray is NOT routinely indicated — irregularity of the calcaneal apophysis is a normal finding in children and does not confirm the diagnosis. X-ray is reserved for atypical presentations or to exclude other pathology.
Management of Sever's Disease
- Activity modification: Reduce (not eliminate) aggravating activities. Maintain fitness through non-weight-bearing activities (swimming, cycling).
- Heel cushioning: Silicone heel cups or gel inserts in school and sports shoes to absorb impact.
- Calf stretching: Gentle gastrocnemius and soleus stretching 2–3 times daily.
- Ice: Apply ice for 15–20 minutes after activity.
- Analgesia: Paracetamol PRN; short-course ibuprofen if needed (avoid prolonged NSAID use in children).
- Podiatry referral for recurrent or severe symptoms — orthotics may help correct biomechanical factors.
- Prognosis: Self-limiting condition that resolves when the calcaneal apophysis fuses (typically by age 15). Symptoms may recur over 1–2 years.
Sever's Disease — Key Paediatric Point
Reassure parents that this is a benign, self-limiting growth-related condition — not a "stress fracture" or serious injury.
Advise school PE teachers about activity modification rather than complete exclusion from sport.
Köhler's Disease (Navicular Avascular Necrosis)
Köhler's disease is a rare avascular necrosis of the tarsal navicular bone, occurring predominantly in boys aged 3–7 years (male-to-female ratio approximately 4:1). It typically presents with midfoot pain, limping, and localised tenderness over the navicular on the medial aspect of the foot.
- Symptoms: Gradual onset medial midfoot pain, antalgic gait, swelling over the navicular.
- Examination: Tenderness over the navicular bone. Pain with resisted tibialis posterior action (inversion against resistance).
- Imaging: Plain X-ray of the foot shows sclerosis, fragmentation, and flattening of the navicular. MRI may be helpful in equivocal cases and demonstrates bone marrow oedema.
- Management: Supportive — short-leg walking cast or CAM boot for 6–8 weeks if symptomatic, with gradual return to activity. Analgesia with paracetamol. Referral to paediatric orthopaedics for severe or refractory cases. Prognosis is generally excellent — the navicular revascularises and remodels over 1–2 years.
Freiberg's Disease (Metatarsal Head Avascular Necrosis)
Freiberg's disease is avascular necrosis of the metatarsal head, most commonly affecting the 2nd metatarsal head in adolescent girls aged 11–17 years. It is thought to result from repetitive microtrauma during the growth period when the metatarsal head is biomechanically vulnerable.
- Symptoms: Forefoot pain, stiffness at the affected MTP joint, exacerbated by weight-bearing and activity. Pain may be present for months before presentation.
- Examination: Tenderness over the dorsum of the affected MTP joint. Limited and painful MTP dorsiflexion. Possible swelling and crepitus.
- Imaging: Plain X-ray shows flattening, sclerosis, and eventual fragmentation of the metatarsal head. Staging (Smillie classification I–V) guides management. MRI is useful for early disease before radiographic changes are apparent.
Management of Freiberg's Disease
Early (Smillie I–II)
Conservative Management
Activity modification, stiff-soled shoes, metatarsal pad to offload the affected MTP joint, short-leg cast for 4–6 weeks if needed.
Setting: General practice ± podiatry / paediatric orthopaedics
Moderate (Smillie III–IV)
Orthopaedic Referral
Persistent symptoms despite conservative management. Options include core decompression, bone grafting, or osteotomy.
Setting: Paediatric orthopaedic surgeon
Late (Smillie V)
Surgical Intervention
Severe MTP joint degeneration. Options include cheilectomy, interpositional arthroplasty, or joint replacement in skeletally mature patients.
Setting: Orthopaedic surgery — foot and ankle subspecialist
Summary: Paediatric Osteochondroses of the Foot
| Condition | Bone Affected | Age Range | Sex Predilection | Key Feature | Prognosis |
|---|---|---|---|---|---|
| Sever's disease | Calcaneal apophysis | 8–14 years | M ≈ F (slight M preponderance) | Most common cause of paediatric heel pain; bilateral in 60 % | Self-limiting; resolves with apophyseal fusion |
| Köhler's disease | Tarsal navicular | 3–7 years | M : F = 4 : 1 | Rare; medial midfoot pain and limping | Excellent; revascularises in 1–2 years |
| Freiberg's disease | 2nd (or 3rd) metatarsal head | 11–17 years | F > M | Forefoot MTP pain; may present late | Variable; early conservative Rx has good outcomes |
Investigations & Imaging
The choice of investigation depends on the clinical differential. Most foot and ankle conditions can be diagnosed clinically; imaging should be used to confirm a diagnosis, exclude serious pathology, or guide interventional management.
Essential
Plain X-ray (weight-bearing views)
First-line for trauma (Ottawa Rules), suspected fracture, arthritis, and paediatric conditions. Weight-bearing AP and lateral views of the foot and ankle are recommended. Three views (AP, lateral, oblique) for foot pathology. Available in all Australian imaging centres; MBS rebatable (item 58100 series). Bulk-billed at most radiology practices.
Available
Diagnostic Musculoskeletal Ultrasound
Gold standard for tendon assessment (Achilles, plantar fascia, tibialis posterior, peroneal). Dynamic assessment possible. Plantar fascia thickness > 4 mm is diagnostic of plantar fasciopathy. Guided injection procedures. MBS item 55700 (single region). Available at most metropolitan and many regional radiology practices.
Available
MRI of Ankle / Foot
Gold standard for occult fractures (stress fractures, osteochondral lesions), soft-tissue detail (ligament tears, tendon pathology), and early AVN (Köhler's, Freiberg's). MBS item 63508 (MRI ankle) — requires clinical indication. Not all indications are MBS-rebatable; check current Medicare criteria. Gap payments common.
Available
CT Foot / Ankle
Best for complex fractures (calcaneus, talus, intra-articular fractures), surgical planning, and Lisfranc injury assessment. MBS rebatable. Not first-line for soft-tissue pathology.
Referral
Bone Scintigraphy (Bone Scan)
High sensitivity for stress fractures when X-ray is negative and MRI is unavailable or contraindicated. Low specificity. Nuclear medicine referral required.
Essential
Blood Tests (for systemic causes)
FBC, ESR, CRP, serum uric acid, RF, anti-CCP, HLA-B27 (if SpA suspected). Fasting glucose / HbA1c if diabetic foot pathology suspected. Available at all Australian pathology providers; MBS rebatable.
MBS tip: Ultrasound-guided corticosteroid injections attract a separate Medicare rebate (MBS items 55700 + injection item). Always document the indication clearly on the referral to ensure MBS compliance. For Medicare bulk-billed diagnostic ultrasound, patients require a valid referral from a medical practitioner.
Pharmacological Management
Pharmacotherapy for foot and ankle pain is primarily analgesic and anti-inflammatory. The approach depends on the underlying condition, pain severity, patient comorbidities, and contraindications.
Analgesic Ladder for Foot & Ankle Pain
1
Mild Pain
Paracetamol ± topical NSAIDs (diclofenac gel). Non-pharmacological measures (ice, elevation, taping, activity modification).
2
Moderate Pain
Add short-course oral NSAIDs (ibuprofen 200–400 mg TDS, naproxen 250–500 mg BD). COX-2 inhibitor (celecoxib) if GI risk. Topical NSAIDs as adjunct.
3
Severe / Acute Trauma
Short-course paracetamol + codeine combination (if needed; avoid prolonged use). Corticosteroid injection for focal inflammatory conditions. Neuropathic agents (amitriptyline, gabapentin) for chronic neuropathic foot pain.
Additional Pharmacotherapy Agents
Naproxen
Naprosyn® · Inza® · NSAID
Adult dose
250–500 mg PO BD with food; max 1 g/day; short course (5–7 days)
Paediatric dose
5–7 mg/kg/dose BD (juvenile idiopathic arthritis); max 1 g/day
Renal adjustment
Avoid if eGFR < 30 mL/min
Hepatic adjustment
Use with caution; avoid in severe impairment
PBS status
✔ PBS General Benefit
Celecoxib
Celebrex® · COX-2 Selective Inhibitor
Adult dose
100–200 mg PO BD; max 400 mg/day for acute pain
Paediatric dose
Not routinely recommended < 18 years for this indication
Renal adjustment
Avoid if eGFR < 30 mL/min
Hepatic adjustment
Contraindicated in severe hepatic impairment (Child-Pugh C)
PBS status
⚠ Authority Required (patients at increased GI risk with non-selective NSAIDs)
Amitriptyline
Endep® · Tricyclic antidepressant (low-dose for neuropathic pain)
Adult dose
10–25 mg PO nocte; titrate by 10–25 mg weekly; usual dose 25–75 mg nocte
Paediatric dose
Not recommended for pain management in children
Renal adjustment
No specific adjustment; use with caution
Hepatic adjustment
Use with caution; lower starting dose
PBS status
✔ PBS General Benefit
Colchicine (gout flare)
Colgout® · Anti-inflammatory
Adult dose
1 mg stat then 0.5 mg 1 hour later (total 1.5 mg on day 1); then 0.5 mg daily or BD until flare resolves
Paediatric dose
Not routinely used in children for gout
Renal adjustment
Reduce dose if eGFR < 30 mL/min; avoid if eGFR < 10
Hepatic adjustment
Reduce dose in severe hepatic impairment
PBS status
✔ PBS General Benefit
NSAIDs in the elderly: Use with extreme caution in patients aged ≥ 65 years. Shortest duration and lowest effective dose. Avoid if history of GI bleeding, CKD (eGFR < 30), heart failure, or concurrent anticoagulation. Co-prescribe a PPI (e.g. omeprazole 20 mg daily) if oral NSAIDs are unavoidable in at-risk patients. Intra-articular corticosteroid injection is often a safer alternative for focal pain.
Non-Pharmacological Management & Rehabilitation
Non-pharmacological strategies are the foundation of management for most foot and ankle conditions. Patient education, activity modification, and structured rehabilitation programmes are critical for sustained recovery.
General Principles
- PRICE protocol (Protection, Rest, Ice, Compression, Elevation) for acute injuries in the first 48–72 hours.
- Activity modification, not complete rest: Encourage continued loading within acceptable pain limits to promote tissue adaptation and avoid deconditioning.
- Footwear assessment: Advise supportive, well-fitted shoes appropriate to activity. Refer to podiatry for biomechanical assessment where indicated.
- Weight management: Obesity is a significant modifiable risk factor for plantar fasciopathy and Achilles tendinopathy. Refer to GP Management Plan (GPMP, MBS item 721) with dietitian input.
Physiotherapy & Allied Health Referral
Under Medicare's Chronic Disease Management (CDM) programme, patients with chronic musculoskeletal conditions may be eligible for up to 5 individual allied health services per calendar year (MBS items 10950–10970) with a Team Care Arrangement (TCA, MBS item 723). This provides subsidised access to:
- Physiotherapy: Eccentric loading programmes, manual therapy, dry needling, gait retraining.
- Podiatry: Orthotic prescription, footwear advice, biomechanical assessment, diabetic foot care.
- Exercise physiology: Structured return-to-sport programmes, strength and conditioning.
Specific Rehabilitation Protocols
| Condition | Key Rehabilitation Component | Duration | Outcome Measure |
|---|---|---|---|
| Plantar fasciitis | Plantar fascia + calf stretching; low-Dye taping; orthotics | 12 weeks minimum | VAS pain score; FHSQ (Foot Health Status Questionnaire) |
| Achilles tendinopathy | Alfredson eccentric protocol (heavy slow resistance in later stages) | 12 weeks (eccentric) + progressive strengthening 12–24 weeks | VISA-A score (Victorian Institute of Sports Assessment — Achilles) |
| Ankle sprain | Proprioceptive training (wobble board); peroneal strengthening; balance exercises | 6–12 weeks; sport-specific drills from week 4–6 | Star Excursion Balance Test; return-to-sport criteria |
| Achilles rupture (post-op or post-boot) | Progressive loading: isometric → isotonic → plyometric; calf raises → hopping → running | 6–9 months to return to sport | Limb symmetry index > 90 % on single-leg heel raise; VISA-A |
Monitoring & Follow-Up
Follow-up should be tailored to the condition, severity, and response to treatment. The following timelines provide a framework for Australian primary care.
2 weeks
Review response to initial conservative management (plantar fasciitis, Achilles tendinopathy). Assess compliance with stretching and eccentric programmes. Reassess analgesic requirements.
6 weeks
If symptoms not improving, escalate management (podiatry/physiotherapy referral, orthotics, consider corticosteroid injection for plantar fasciitis). Re-examine to exclude alternative diagnoses.
12 weeks
Expected improvement window for most conditions. If refractory, consider specialist referral (sports medicine, orthopaedics). Advanced imaging (MRI) if not already performed. Review need for CDM plan.
6 months
Chronic pathology review. Functional outcome scores (VISA-A, FHSQ). Decision regarding surgical referral for refractory tendinopathy or plantar fasciopathy.
Achilles rupture: ongoing
Orthopaedic/sports medicine-led follow-up. Boot removal at 8–10 weeks (conservative) or 4–6 weeks (post-op). Progressive rehabilitation over 6–9 months. Return-to-sport testing at 9–12 months.
Special Populations
Paediatrics
Consider Sever's disease (calcaneal apophysitis) as the most common cause of heel pain in active children aged 8–14 years.
Köhler's disease (navicular AVN) in boys aged 3–7 with midfoot pain; Freiberg's disease (metatarsal head AVN) in adolescent girls with forefoot pain.
Avoid prolonged oral NSAIDs in children; use paracetamol as first-line analgesia and NSAIDs only short course if needed.
X-rays are NOT routinely indicated for suspected Sever's disease — clinical diagnosis suffices.
Paediatric NSAID dose: Ibuprofen 5–10 mg/kg/dose TDS-QID; Naproxen 5–7 mg/kg/dose BD.
Refer to paediatric orthopaedics for suspected AVN conditions, atypical presentations, or failure to improve with conservative management.
Elderly (≥ 65 years)
Higher prevalence of fat pad atrophy (sub-heel pain worse on hard surfaces), midfoot osteoarthritis, and posterior tibial tendon dysfunction (acquired flat foot).
Increased fall risk with ankle injuries — perform a falls risk assessment and consider home modifications.
NSAIDs carry significant risk in elderly patients (GI bleeding, renal impairment, cardiovascular events, falls). Prefer paracetamol, topical NSAIDs, or intra-articular injection.
If oral NSAIDs are unavoidable: use lowest dose for shortest duration + co-prescribe PPI (omeprazole 20 mg daily). Avoid if eGFR < 30.
Screen for peripheral neuropathy and peripheral vascular disease, particularly in patients with diabetes.
Chronic Kidney Disease
Avoid oral NSAIDs if eGFR < 30 mL/min — risk of acute kidney injury and fluid retention.
Topical NSAIDs are safer (minimal systemic absorption) but use with caution.
Renal dose adjustments for colchicine (reduce dose if eGFR < 30; avoid if eGFR < 10) and gabapentin (dose reduction required).
Paracetamol remains first-line; dose interval increase only if eGFR < 10 mL/min.
Consider intra-articular corticosteroid injection as a renal-safe anti-inflammatory option for focal joint pain.
Hepatic Impairment
Paracetamol: reduce maximum dose to 2 g/day in significant hepatic impairment; avoid in severe liver disease.
NSAIDs: avoid in severe hepatic impairment (Child-Pugh C); use with caution in moderate impairment.
Celecoxib: contraindicated in severe hepatic impairment.
Topical NSAIDs are relatively hepatic-safe due to minimal systemic absorption.
Pregnancy
Foot and ankle pain is common in pregnancy due to weight gain, ligamentous laxity, and altered biomechanics. Oedema and pes planus are normal physiological changes.
First-line: paracetamol, footwear advice, orthotics, calf stretching, elevation.
NSAIDs: avoid in the third trimester (risk of premature closure of the ductus arteriosus). Short courses in the second trimester may be considered if benefits outweigh risks — discuss with obstetrician.
Paracetamol is safe in all trimesters. Topical NSAIDs use caution (limited data; avoid over large areas).
Corticosteroid injection: can be performed if strongly indicated (e.g. severe plantar fasciitis unresponsive to conservative measures). Use ultrasound guidance. Discuss risks and benefits with the patient.
Diabetes & Immunocompromise
Patients with diabetes are at increased risk of Charcot neuroarthropathy, diabetic foot ulcers, peripheral neuropathy, and infection. Any acute foot swelling in a neuropathic diabetic patient should be considered Charcot until proven otherwise — refer urgently.
Diabetic foot infections require urgent assessment, wound swabs, and empiric antibiotics per eTG Antibiotic guidelines. Refer to multidisciplinary diabetic foot team.
Annual comprehensive foot examination (monofilament testing, pulses, inspection) is recommended for all patients with diabetes (MBS item 721/723 for GPMP/TCA).
Empiric antibiotic for moderate diabetic foot infection: Amoxicillin/clavulanate 875/125 mg PO BD; if penicillin allergy: Ciprofloxacin 500 mg PO BD + Clindamycin 450 mg PO TDS. Seek infectious diseases advice for severe infection.
Patients on immunosuppressive therapy (biologics, methotrexate, corticosteroids) may present atypically — maintain a low threshold for imaging to exclude infection or fracture.
Aboriginal and Torres Strait Islander Health
📚 References
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- 2. Silbernagel KG, Hanlon S, Sprague A. Current clinical concepts: conservative management of Achilles tendinopathy. J Athl Train. 2020;55(5):438-447.
- 3. Alfredson H, Pietilä T, Jonsson P, Ohber L. Heavy-load eccentric calf muscle training for the treatment of chronic Achilles tendinosis. Am J Sports Med. 1998;26(3):360-366.
- 4. Stiell IG, Greenberg GH, McKnight RD, et al. Decision rules for the use of radiography in acute ankle injuries: refinement and prospective validation. JAMA. 1993;269(9):1127-1132. (Ottawa Ankle Rules)
- 5. Micheli LJ, Ireland ML. Prevention and management of calcaneal apophysitis in children: an overuse syndrome. J Pediatr Orthop. 1987;7(1):34-38.
- 6. Katcherian DA. Soft-tissue disorders of the foot. In: Jahss MH, ed. Disorders of the Foot and Ankle. 2nd ed. Philadelphia: WB Saunders; 1991:1377-1399. (Köhler's and Freiberg's disease overview)
- 7. Royal Australian College of General Practitioners (RACGP). Guidelines for Preventive Activities in General Practice (Red Book). 9th ed. Melbourne: RACGP; 2018. (Diabetic foot screening recommendations)
- 8. Australian Institute of Health and Welfare (AIHW).