الفهرس 
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Abstract
Background: Plantar fasciitis is the most common cause of heel pain. It accounts for 15% of all foot symptoms requiring medical care. Different treatment modalities are available for plantar fasciitis; including conservative measures (e.g. non-steroidal anti-inflammatory drugs, foot orthoses, and stretching exercises) and surgical release. Corticosteroid injection is used for treatment of refractory plantar fasciitis, its satisfactory outcomes reach 85-89%. Also, platelet-rich plasma (PRP) is used for treatment of plantar fasciitis; however, it yields markedly debatable clinical outcomes.
Aim of the work: The aim of this work was to investigate clinical outcomes of local injection (Corticosteroid versus Platelet-Rich Plasma) for management of plantar fasciitis.
Patients and methods: Between June 2018 to December 2019, this prospective cohort study was conducted including 70 patients of chronic plantar fasciitis who were mutually distributed into group-(A) of 35 patients (managed by steroid injection); and group-(B) of 35 patients (managed by local PRP injection). Patients were evaluated for demographics and for pre-injection and 1-week, 3-month and 6-month post-injection VAS scores.
Results: Statistically, groups were matched for demographics. There was post-injection improvement in VAS scores in both groups. However, this improvement was significantly higher in group-(A) throughout duration of follow up. Re-injection rate was 14.3% and 20% of patients in steroid and PRP groups respectively at 6-month post-injection follow up.
Conclusion: Both steroids and PRP are effective and safe treatment options for chronic plantar fasciitis. However, when compared to PRP; local steroid injection can achieve significantly more short-term improvement of plantar fasciitis-related heel pain. In addition, local steroids are cheap, readily-available and time-saving choice.