A Simple Temperature Test Can Help Save Limbs and Lives
One simple step in every patient evaluation can help save limbs and potentially save lives: assess the feet and lower legs for temperature on every patient who enters your office.
A basic infrared temperature gun is inexpensive, easy to use, and widely available. Many clinicians already have one at home. These devices typically cost around $20–$25 and can be easily incorporated into daily clinical screening.
Why This Matters
A temperature difference of approximately 3°F (or more) between the left and right foot can be an early warning sign of inflammation or early Charcot neuroarthropathy.
Early detection of this difference allows clinicians to intervene before structural collapse, ulceration, or amputation occurs.
In addition, localized temperature elevations of approximately 7°F or more in the lower leg or foot may raise suspicion for deeper infection, including possible osteomyelitis, and should prompt further diagnostic evaluation.
When Abnormal Temperatures Are Found
If a temperature difference is identified:
- Perform a thorough clinical evaluation
- Order appropriate laboratory tests
- Consider advanced imaging, such as MRI, to rule out infection, Charcot changes, or other pathology
The Bottom Line
This screening takes less than 30 seconds and can dramatically improve early detection of limb-threatening conditions.
By simply measuring temperature, we can:
- Detect early Charcot foot
- Identify developing ulcers
- Recognize possible infection
- Prevent amputations
An ounce of prevention is worth a pound of cure.
Jeff Rich is a Board-Certified Pedorthist and the owner of the U.S. Orthotic Center in New York City, which specializes in orthotic manufacturing and shoe modification. For the past 46 years, he has employed a unique orthotic fabrication method that combines traditional craftsmanship with modern technology and serves professional athletes, including teams from the NBA and the US Olympic team. Additionally, he co-founded Masterfit Enterprises, which focuses on orthotic and footwear solutions, and has contributed significantly to the snowsports industry through training programs and product innovations. Rich holds seven US patents, including 3 for orthotic designs. Jeff is the President of PFA and serves on several committees. He also heads the Pedorthic lab and teaches Pedorthics at Hamad Hospital in Qatar.
