People like you really amaze me. Every time a doctor offers an opinion, people like you now love to use the new buzz words "evidence based medicine" and "peer reviewed" studies.
There's a huge difference between discussing my opinion on one store's quality, based on "only" 23 years of treating feet & ankles medically and surgically on thousands of patients vs. discussing a new revolutionary surgical technique to reconstruct the ankle that has not been "peer reviewed".
"Layman" love to dissect every comment made by medical professionals, and then ask for "literature" to back every comment made. There aren't studies for every opinion that every doctor has on every subject. I don't believe that there have ever been any peer reviewed/evidence based studies that show that dropping a refrigerator on your foot would cause significant injury, but my opinion is that it would cause harm. And I think it's safe to say that you don't need a study to verify that finding.
If you read my post correctly, I never told the original poster not to purchase an over-the-counter (OTC) insert/orthoses. On the contrary.....I highly recommended a pair of PowerSteps, since in my experience my patients have had the most success with this product compared to products such as Soles, Sof-Sole, Birkenstock inserts, Spenco products, Superfeet, Downunders, Lynco's, Accommodators, JSB OTC devices, Bauerfiend, and the dozens of other brands that I've tried in my office.
I did state that some patients can not wear OTC inserts if they have feet which are "extremes", meaning very high or very low arches, since OTC products are manufactured to fit a more average type of foot.
I often recommend OTC inserts/PowerSteps and even stated that not all patients require custom orthoses or the biomechanical control that custom orthoses provide.
What I DID state is that one particular store, Foot Solutions has consistently ripped off many patients prior to these patients coming to my office. The story is always the same. The patient walks into the store, and is "diagnosed" by a salesperson and is then told what he/she "needs". The patient is then measured via some useless hocus pocus device or machine or has a tracing via a carbon paper type device.
The salesperson then dispenses a highly priced device (none of my patients ever spent less than $250) for a product that was taken out of a box. These same items are available in other stores or online for between $25-$40 maximum.
And ironically, the patient could have had a custom orthoses for not much more than a product taken off the shelf.
So, I don't need an evidence based, peer reviewed journal article to form an opinion. I believe that many people would disagree with you that 23 years of practice is "worthless" regarding the ability to form an opinion about a matter such as this one.
Once again, if I was making a claim that I just developed a revolutionary new surgical procedure, I would expect that to undergo the scrutiny of a peer reviewed study with evidence based research.
So go back and read my post and you'll see that I DO highly recommend OTC products such as the PowerStep, and don't believe all patients need custom orthoses. I simply stated that one particular store has salesmen that act like snake-oil salesmen and in my opinion are the used car salesmen of the shoe stores. That's an opinion that simply does not need a peer reviewed journal article or evidence based research.
By the way......you don't happen to be a used car salesman do you???