Foot and Ankle Doctor Blog Space

Hyperbaric Oxygen

Hyperbaric oxygen treatments  (HBOT) have been effective in treating hypoxic wounds. Wounds need an optimal environment of nutrients and oxygen to promote new cell growth and healing. Chronic wounds take years to heal because the blood circulation to the wound area has diminished. As a result of poor blood flow the wound has a poor supply of nutrients and oxygen. Hyperbaric oxygen therapy has been used to heal chronic wounds by placing patients in a chamber of 100% pure oxygen. During the HBO treatment and up to 4 hours afterwards, the oxygen is dissolved in the blood and carried to the wound site. As a result new blood vessel production occurs which helps with collagen and epithelial formation at the ulcer site to increase healing time. Patients are placed in an HBO tank for no longer than 90 minutes. HBOT can also be used for:

  • Diabetic ulcers
  • Wound healing
  • Burns
  • Gas gangrene
  • Necrotizing infections
  • Compromised or failed skin grafts and flaps

For more information about HBOT, come see one of our physicians at Foot & Ankle Doctors, Inc

Dr. Dardashti




Neuropathic Joints

Charcot is a condition in patients who have neuropathy or loss of sensation. Charcot can lead to fractures and dislocations in the foot and ankle. As the disease progresses the joints collapse and the foot can take an abnormal shape known as a rocker-bottom foot. Diabetes is the most common cause of Charcot because diabetes is associated with poor blood flow, causing weakening of bones, and neuropathy, which is the main cause of Charcot. Other causes and risk factors include repetitive microtrauma and patients with peripheral neuropathy secondary to:

– Chronic alcoholism

– Leprosy

– Syphilis

– Poliomyelitis


There are various stages of Charcot and symptoms will vary depending on the stage of the deformity.

Stage 1: Red, hot, swollen foot/ankle.

X-rays show soft tissue edema and bony fragments

Stage 2: Decreased local edema foot/ankle

X-rays reveal coalesence of bony fragments

Stage 3: No local edema

X-rays show consolidation and remodeling of the bone


In addition to reviewing your overall health, symptoms and discussing your medical history, our physicians at Foot& Ankle Doctors, Inc may order various imaging tests for further detailed pictures of your foot or ankle.


In early stages of Charcot, x-rays may appear normal. As the disease progresses the bones may fracture or dislocate. As a result repeat x-rays may be taken several weeks later.


Ordered to evaluate soft tissue and when a bone infection is suspected

Bone Scans:

Helpful to differentiate between Charcot and infection. Charcot and an infection are positive on a technetium bone scan, however infection will only produce a hot spot on an indium bone scan and Charcot will not.

Non-Surgical Treatment

– Immobilization is important in the early stages of Charcot to protect the bones

from stress and shear forces that can further damage the bones

– Total contact cast changed every 1-2 weeks for 2-4 months

– Charcot restraint orthotic walker (CROW) boot

Custom Shoes designed to decrease the risk of ulcers

– Rocker bottom shoes will help reduce the risk of ulceration

Surgical Treatment

Depending on the type and extent of the deformity surgery may be recommended

Dr. Dardashti

Feeling pins and needles in your feet?

If you experience burning, tingling, stabbing, pins-and-needles sensation in your feet, you’re not alone. This sensation is referred to as peripheral neuropathy and commonly affects diabetics. 60-70% of diabetics will develop peripheral neuropathy because they have uncontrolled blood sugars which damage nerves in the hands and feet leading to a tingling sensation and loss of feeling. Your feet may feel numb and you may loose the ability to feel temperature and pain making you more susceptible to injury, infection and burns. It is important to check your feet every day for signs of injury or infection. Many patients suffering from peripheral neuropathy are unable to sense a small pebble in their shoe and after walking on it all day long can develop a wound. It is important to wear properly fitted shoes and avoid walking barefoot. Make sure to check the temperature of the shower water before jumping in to avoid burning your feet.

There is no cure for peripheral neuropathy but there are medications that can help with the tingling sensation. Controlling blood sugar can help prevent the onset of peripheral neuropathy.

Peripheral neuropathy can also be caused by a vitamin B deficiency, certain medications, alcoholism, autoimmune diseases, infections, toxins and by many others. A herniated disk can also produce symptoms of a burning, tingling pain in the legs and feet. Come see Dr. Dardashti at Foot& Ankle Doctors, Inc for adequate diagnosis and treatment of your foot pain.

Dr. David Dardashti

The VIP’s of wound healing

According to APMA (American Podiatric Medical Association) approximately 15% of individuals with diabetes will develop an ulcer. Celebrities like Halle Berry and Tom Hanks are diabetic and it is important for them or any person with diabetes to check their feet daily and ensure they do not have any open lesions. Wound healing is slowed when you have diabetes so it is important to treat wounds promptly. There are three important factors Dr. Dardashti checks when a patient presents with a wound and they can be summarized as “VIP.”

V is for vascular, for a wound to heal you need an adequate blood supply to provide proper nutrients to the injured area in order for healing to take place

I stands for infection, an infected wound needs to be treated with antibiotics before the wound can heal itself

P stands for pressure; some wounds on the feet are in places that are constantly subjected to increased pressures when walking. This chronic pressure will cause the tissue to breakdown resulting in a wound, thus it is important to relieve pressure from a wound to allow it to properly heal.

Dr. David Dardashti

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