Letters Section Editor: Stephen J. Lurie,
MD, PhD, Senior Editor.
In Reply: In response to Dr Weintraub, plantar
fasciitis is a clinical diagnosis, not a laboratory diagnosis. Magnetic resonance
imaging, radiographs, and nerve conduction studies have not been validated
in the literature as being diagnostic for plantar fasciitis and they are not
used routinely as such in clinical practice.
In contrast with Weintraub's claims, our study did not limit "magnetic
application" to only 4 hours per day, 4 days per week. Rather, the protocol
suggested this as minimum use. Daily diary responses indicated that the participants
typically used the insoles 6 to 7 days per week for 9 to 10 hours per day.
Winemiller MH, Laskowski ER. Magnets for Patients With Heel Pain—Reply. JAMA. 2004;291(1):43-44. doi:10.1001/jama.291.1.44-a