What would limb preservation look like if we could see foot health across a country, long before many people reach an operating room? Our Danish colleagues have given us a substantial resource for asking that question.
Congratulations to Amanda E. Olesen and colleagues on their description of the Danish Foot Status Database, published in Diabetes, Obesity, and CardioMetabolic CARE. The scale is striking. The opportunity is to turn everyday assessment into shared learning. Read the study.
A quarter of a million people, with the denominators kept straight
The database contains 1,104,889 entries from 241,599 people with diabetes attending state-authorized podiatry. The study covers September 2015 through June 23, 2025, and describes findings at each person’s first recorded annual consultation. Entries are not additional people, and these baseline findings are not ten-year incidence rates. [1]
- 48% had neuropathy assessed by biothesiometry above 25 V.
- 91% had at least one recorded foot malalignment.
- 4.2% had a current diabetic foot ulcer.
These are the authors’ reported percentages. Available observations vary by measure, so they should not be converted into exact case counts by multiplying by the full cohort. “Malalignment” also should not be read as “severe deformity requiring surgery.” [1] [2]
Why this deserves our attention
The important idea for me is the connection between a clinical encounter and a learning health system. An examination helps one person today. A consistently recorded examination can also help a service ask whether it is reaching the right people, recognizing risk, and arranging the next step.
For a limb-preservation team, I would want that next step to be visible: who owns the follow-up, whether protective care is accessible, and how quickly a person with a concerning change can be assessed. A database becomes more useful when it helps clinicians and patients close those gaps.
That is the same practical challenge behind our recent discussions of turning neuropathy guidance into care in the exam room and making remission an organized program. A risk label needs a working care pathway.
Nationwide reach, with important boundaries
This is a description of people who attended podiatry, not a census of everyone living with diabetes in Denmark. It cannot show what was happening among those who did not attend. It also does not test whether podiatry or participation in the database prevented ulcers or amputations. [1]
The supplement adds an important caution for anyone hoping to compare measures or trends: a September 2023 update expanded the recorded variables, and missingness differs across fields. Some older sensory entries indicate that a field was completed without documenting the clinical finding. Definitions, completeness, and changes in data collection need careful attention before making comparisons. [2]
From Denmark to a shared international conversation
We recently celebrated Australia’s work on a national diabetic foot registry. The Danish database brings a complementary perspective from routine podiatric assessment. These populations should not be put into a league table of percentages: who enters a dataset shapes what its numbers mean.
My hope is that efforts like these help us agree on a practical core of information across services and countries. We should be able to ask who is being reached, who is missing, what action follows an abnormal finding, and whether people experience more ulcer-free time, better mobility, and fewer hospital days.
Those are questions for the next studies, rather than outcomes demonstrated by this paper. They are also a good reason to invest in careful measurement now.
Congratulations to the Danish team for building a resource that makes these questions possible. Every recorded foot examination belongs to a person. Let’s make the learning count toward more hospital-free, activity-rich, dignity-filled days.
#ActAgainstAmputation
Sources and evidence note
1. Olesen AE, Sørensen KK, Denholt CS, et al. A Danish Nationwide Cohort of Foot Health in Individuals With Diabetes From the Danish Foot Status Database. Diabetes, Obesity, and CardioMetabolic CARE. 2026;1(3):415–422. Published online May 8, 2026. doi:10.2337/doc26-0002. PubMed record.
2. Publisher-linked supplementary materials, including the pre/post-update variable definitions and descriptive tables.
Evidence note: This commentary uses the publicly available abstract, the authors’ university record, and the accessible supplementary materials. The purchase-restricted main full text was not available for review. We have therefore not inferred exact main-table denominators, adjusted effects, or causal benefits.
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