Randomized, multicenter trial on the effect of radiation therapy on plantar fasciitis (painful heel spur) comparing a standard dose with a very low dose: mature results after 12 months' follow-up.

Purpose: To conduct a randomized trial of radiation therapy for painful heel spur, comparing a standard dose with a very low dose.

Methods And Materials: Sixty-six patients were randomized to receive radiation therapy either with a total dose of 6.0 Gy applied in 6 fractions of 1.