Letters Section Editor: Stephen J. Lurie,
MD, PhD, Senior Editor.
To the Editor: Dr Winemiller and colleagues1 found that magnetic insoles did not improve symptoms
among patients with chronic heel pain. I question the methods used to arrive
at this conclusion.
Plantar heel pain is common and has many causes. The ability to distinguish
various foot conditions by clinical examination alone can be fraught with
error because of symptom overlap and spectrum bias.2,3 There
is no evidence that patients in the study by Winemuller et al had magnetic
resonance imaging, radiographs, or nerve conduction studies. There is also
no mention of patients' weights, activity levels, or whether or not they had
Weintraub MI. Magnets for Patients With Heel Pain. JAMA. 2004;291(1):43-44. doi:10.1001/jama.291.1.43-b