It could actually be very common. Think about this: What are the main documented risk factors for plantar fasciitis? (see this).
1. High BMI
2. Tight calf muscles

What do those with type 2 diabetes have:
1. High BMI
2. Tight calf muscles (from the glycation of the collagen)

What is a common diagnostic finding in plantar fasciitis: increased thickening of the plantar fascia

What is a common finding in diabetes: increased thickening of the plantar fascia

How many people with diabetes have plantar fasciitis (as they have all the risk factors), but it is masked by the sensory neuropathy?

Do these people with plantar fasciitis rupture and this is a risk factor for midfoot Charcot’s?

For more on latest research and thought on plantar fasciitis, see Podiatry Arena

A reduction in bone mineral density is know to be a problem in those with Charcot’s neuroarthropathy. A reccent study by Christensen et al (Bone mineral density in diabetes mellitus patients with and without a Charcot foot) investigated 49 people with diabetes, of which 24 had a charcot’s foot. They compared bone mineral desnity at the calcaneus, hip and spine. Differences were found in the calcanues between the charcot’s group and teh cpntrol group, but no differences at the hip and spine. This suggest that the reduction in bone mineral density seen in charoct’s foot is a local phenomenon rather than a general problem.

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