Treatment of Lateral Foot Tendinitis

Initial Conservative Management

The American Academy of Family Physicians recommends beginning with a structured 3-6 month conservative treatment program consisting of relative rest, eccentric strengthening exercises, NSAIDs, and cryotherapy before considering any invasive interventions 1, 2
Implement relative rest by allowing patients to continue activities that do not worsen pain while avoiding complete immobilization, which causes muscle atrophy and deconditioning 1, 2
Tensile loading of the tendon through controlled activity stimulates collagen production and guides proper alignment of newly formed collagen fibers 1, 2
Eccentric exercises are the cornerstone of treatment and have proven beneficial in multiple tendinopathies, including Achilles and patellar tendinosis 1, 2
Apply ice through a wet towel for 10-minute periods for short-term pain relief 1, 2
Topical NSAIDs are preferable to oral NSAIDs as they eliminate the increased risk of gastrointestinal hemorrhage while effectively relieving tendon pain 1, 2
Shoe orthotics are safe, widely used, and often helpful in correcting biomechanical problems such as excessive foot pronation or pes planus deformity 1, 2

Approximately 80% of patients with overuse tendinopathies recover completely within 3-6 months with appropriate conservative treatment 1, 2

Use corticosteroid injections with extreme caution and only for peritendinous injection - never inject directly into the tendon substance 1, 2
Consider cast immobilization or fixed-ankle walker-type device in particularly acute or refractory cases 3, 4
Extracorporeal shock wave therapy (ESWT) appears safe and effective but requires further research to clarify optimal treatment strategies 1, 2

Surgery is warranted only if pain persists despite 3-6 months of well-managed conservative treatment 1, 2
Referral to a podiatric foot and ankle surgeon is appropriate when conservative measures fail 3, 4
Surgical techniques typically include excision of abnormal tendon tissue and longitudinal tenotomies to release areas of scarring and fibrosis 1, 2

Never inject corticosteroids directly into the tendon substance - only peritendinous injections should be considered 1, 2
Avoid complete immobilization for prolonged periods as it leads to muscle atrophy and deconditioning 1, 2
Do not proceed to surgery without an adequate 3-6 month trial of conservative treatment 1, 2
Do not rely on NSAIDs alone for long-term management - they provide only short-term symptom relief 1, 2