Wednesday, March 4, 2015

Importance of Diabetic Footwear

              
            The most common cause of diabetic foot ulcers (DFU) is trauma injury.  Individuals with DFU were five times more likely to have been wearing improperly fitting shoes (Nixon et al., 2006).  Common problems of poorly fitting shoes are inadequate shoe length, width of the toe box, and internal seams (Healy, Naemi, & Chockalingam, 2013).  Diabetic neuropathy prohibits normal sensation of the feet.  Increased pressures, calluses, and sores can occur with repeated use of improper footwear.  DFUs are most likely, to be located in the plantar foot areas. 
            The goal of therapeutic shoes is to reduce pressure in high-risk sites, such as the plantar region and locations of prior DFUs. Therapeutic footwear can be obtained off the shelf or custom made.  Certain aspects should be considered when deciding on appropriate footwear such as foot deformities, prior DFU, and activity level.  Foot deformities make off-the-shelf shoes challenging to fit and may respond better to custom- made footwear.  Individuals at high risk for DFUs should consider custom-made shoes.  Specific design features of all therapeutic footwear should include a rigid rocker bottom and custom insole (Healy, et al., 2013).
                                                                                    
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            Although therapeutic footwear is considered an essential intervention in reducing the incidence of DFUs, patient compliance is low.  Footwear must be regularly worn to be an effective preventative measure.  Aesthetics of diabetic footwear was reported as a factor of low compliance (Williams & Nester, 2006).  Many diabetics do not regularly wear prescribed shoes because they are considered less attractive.  Additionally, some individuals do not purchase therapeutic shoes because of increased cost.  However, high-risk diabetics on Medicare qualify for shoes and insoles through the Therapeutic Shoe Bill, as well as through many insurance companies (Lawrence, Fontaine & Kim, 2013).

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            Regular use of diabetic footwear has been shown to reduce pressures and protect the foot from external trauma (Apelqvist & Larsson, 2000).  In addition, regular footwear use limits behaviors of walking barefoot or wearing socks or slippers, which can put feet at risk for damage.  Feet should be examined daily for injury, kept dry, and regularly change shoes and socks, especially if high wear is noted.  Diabetic footwear use can prevent DFUs and potential amputations and is an essential preventative tool.
Video 1: finding and wearing good diabetic shoes

                                                                           
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References
Apelqvist, J. & Larsson, J. (2000).  What is the most effective way to reduce incidence of amputation in the diabetic foot?  Diabetes and Metabolism Research and Reviews, 16, S75-S83. http://dx.doi.org/10.1002/1520-7560(200009/10)16:1+<::aid-dmrr139>3.0.co;2-8 
Healy, A., Naemi, R., & Chockalingam, N. (2013). The effectiveness of footwear as an intervention to prevent or to reduce biomechanical risk factors associated with the diabetic foot ulceration: A systemic review. Journal of Diabetes and its Complications, 27(4), 391-400. http://dx.doi.org/10.1016/j.jdiacomp.2013.03.001
Lawrence, A., Fontaine, J. L., & Kim, P. J. (2013). Preventing the first or recurrent ulcers. Medical Clinics of North America, 97(5), 807-820. http://dx.doi.org/http://dx.doi.org/10.1016/j.mcna.2013.05.001
Nixon, B. P., Armstrong, D. G., Wendell, C., Vazquez, J. R., Rabinovich, Z., Kimbriel, H. R., ... Boulton, A. M. (2006). Do US veterans wear appropriately sized shoes? The Veterans Affairs shoe size selection study. Journal of The American Podiatric Medical Association, 96(4), 290-292. http://dx.doi.org/10.7547/0960290
The Foot and Ankle Center. (2013, October 27). Finding & wearing good diabetic shoes [Video file]. Retrieved from https://www.youtube.com/watch?v=mAwgdX5VxGc.
Williams, A. E., & Nester, C. J. (2006). Patient perceptions of stock footwear design features. Prosthetics and Orthotics International, 30, 61-71. http://dx.doi.org/10.1080/03093640600574425

2 comments:

  1. DFU Team,
    I found this section very interesting. Footwear is so important. Most people wear shoes that are not the proper fit for their feet because of the way they look. I have learned so much about shoes in the past few months working with distance runners. It's not quite the same as a diabetic but they must take care of their feet with the mileage they put in and therefore require knowledge of their feet. I found out that running stores will properly fit shoes to the specifications of your foot. Maybe if patients are put-off by the aesthetics of the therapeutic shoe, a running store might help them find a properly fitted shoe they find more appealing.

    Stacy

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  2. Stacy you make an a great point. Definitely a properly fit running shoe would be a better option than an off-the-shelf shoe that is improperly fit. Unfortunately many diabetics do not realize they have an improperly fitting shoe until they have a wound. I think better education is the first step in changing behaviors and habits.

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