Effectiveness of extra-corporeal shock wave therapy (ESWT) vs methylprednisolone injections in plantar fasciitis

In Plantar Fasciitis, the main concern of the patients is the pain that disturbs their day to day activities. Different modalities of treatments are being used for its pain management. This study seeks to investigate and compare decrease in level of pain following treatment with Methylprednisolone injections (DMP) Vs Extra-Corporeal Shock Wave Therapy (ESWT) in plantar fasciitis.

This prospective comparative non randomized study was conducted in 60 patients of any age presenting with Plantar Fasciitis at B&B Hospital, Kathmandu. Patients were divided into 2 groups (30 each) based on patients preference. Methylprednisolone injection was given to one group and another group received ESWT. Follow up of both groups were carried out at 6 weeks, 3 months and 6 months and the outcome was measured with Visual Analogue Pain Scale (VAS). Statistical analysis wasdone using SPSS software, version 13. Chi-square and Independent t-test were applied to look for significant variations in outcome.

Follow-up at 6 weeks revealed 26 (86.7%) patients attaining VAS < 5 in ESWT group in comparison to 16 (53.3%) patients of DMP group (p = 0.005). At the end of 6 months, 5 patients in DPM group still had significant pain (VAS ≥ 5) compared to 2 patients in ESWT group (p = 0.02). However 11 patients of DMP group and 23 of ESWT group received single episode of treatment only and had persistent symptomatic pain relief (VAS < 5) during all follow ups at 6 weeks, 3 months and 6 months (p = 0.004).

Plantar fasciitis was more prevalent in overweight population and females. Significant improvement in pain was observed with both ESWT and DMP Injections. However, ESWT was found to be more effective than DMP Injections for treatment of Plantar Fasciitis.