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1300 mj/mm squared

Posted by john on 11/21/04 at 21:48 (164516)

Dr Davis,

I just read an article entitled 'Effect of Extracorporeal Shock Waves on Calcaneal Bone Spurs' by Lee, Ogden, Cross, Foot and Ankle International, Volume 24, Number 12, December 2003.

This article gives the treatment protocol for the Ossatron FDA trials. According to the article, the FDA protocol was 1500 shocks at 18kV (0.22 mJ/mm squared) delivered at 120 shocks per minute. This gives a total energy of 330 mJ/mm squared.

You had previously stated: 'The figure of 1300 mj/mm squared is the 'bottom line' total needed to affect the plantar fascia'. It seems that the Ossatron affects the plantar fascia with much less. How do you explain the difference?

Re: 1300 mj/mm squared

Ed Davis, DPM on 11/22/04 at 13:40 (164545)

I don't think that we have definitively established what is the total energy deliverd to cure PF or other tendinopathies, only estimates at this time.