Treatment of Plantar Fasciitis
Start with conservative therapy consisting of plantar fascia-specific stretching, calf stretching, heel cups, and activity modification for several weeks; if symptoms persist beyond 3 months, add physical therapy modalities, orthotics, night splints, or consider corticosteroid injections, reserving ultrasonography-guided extracorporeal shock wave therapy (ESWT) for chronic recalcitrant cases. 1, 2, 3
Initial Patient-Directed Conservative Treatment (First Several Weeks)
Begin immediately with this combination approach, as 90% of patients improve with conservative measures 2, 4:
- Plantar fascia-specific stretching exercises performed daily, focusing on the plantar fascia and Achilles tendon 2, 3
- Activity modification to decrease cyclical repetitive loading—reduce prolonged standing, walking, and running during the treatment phase 3
- Ice massage applied to the heel 2
- Viscoelastic heel cups for cushioning 5
- Oral NSAIDs (such as celecoxib) may provide modest additional pain relief and decreased disability, though evidence shows only a trend toward benefit rather than statistically significant improvement 5
Physician-Prescribed Treatments (If Pain Persists After Initial Weeks)
Escalate to these interventions when patient-directed measures prove insufficient 2:
- Physical therapy modalities including supervised stretching programs 2
- Custom foot orthotics or arch supports to address biomechanical abnormalities 2, 6
- Night dorsiflexion splinting to maintain stretch during sleep 2, 3
- Corticosteroid injections for pain relief, though effects are short-lived and carry risks of fat pad atrophy and plantar fascia rupture—use judiciously 3
Advanced Treatment for Chronic Recalcitrant Cases (≥6 Months)
For patients failing conservative therapy after 6 months 2, 3:
- Ultrasonography-guided focal extracorporeal shock wave therapy (ESWT) is the recommended next step, supported by the American College of Radiology for chronic plantar fasciitis unresponsive to conservative treatment 1, 3
- Plantar fasciotomy should be reserved only for surgical candidates who have failed all conservative measures including ESWT 2, 6
Diagnostic Imaging Considerations
Imaging is not needed for initial diagnosis, which relies on clinical presentation: heel pain with first morning steps or after prolonged sitting, and tenderness at the medial plantar calcaneal region 2:
- Ultrasonography is reasonable and cost-effective for recalcitrant cases (>3 months), showing plantar fascia thickness >4mm; ultrasound elastography demonstrates superior accuracy (95% sensitivity, 100% specificity) 1, 7
- MRI is the most sensitive imaging modality but typically unnecessary unless ruling out stress fractures, tears, or other heel pathology 7, 1, 2
Critical Pitfalls to Avoid
- Do not rush to imaging for straightforward presentations—diagnosis is clinical 2
- Avoid overreliance on corticosteroid injections due to risks of fat pad atrophy and fascia rupture; reserve for selected cases 3
- Do not proceed to surgery without exhausting conservative options for at least 6 months, as 90% of patients respond to non-operative treatment 2, 4
- Address underlying risk factors including obesity, excessive foot pronation, and biomechanical abnormalities throughout treatment 2