Mactavish, Larry S

Physicians & Surgeons, Podiatrists, Physicians & Surgeons, Physicians & Surgeons, Dermatology

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Fax: (281) 446-2223

Phone: (281) 446-7773

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George Bush Intercontinental Airport

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Mac Tavish II, L S, DPM

Mac Tavish II L Scott DPM

Tavish Li, Mac Dpm

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Physicians & Surgeons, Podiatrists, Physicians & Surgeons, Physicians & Surgeons, Dermatology, Physicians & Surgeons, Family Medicine & General Practice, Physicians & Surgeons, Pediatrics, Physicians & Surgeons, Sports Medicine, Physicians & Surgeons, Surgery-General, Sports Medicine & Injuries Treatment

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Phone: (281) 973-0478

Address: 8901 Fm 1960 Bypass Rd W, Humble, TX 77338

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Mactavish, Larry S

General Practitioners

Warts
Arthritis
Plantar Fasciitis
We are a leading Podiatry Practice for the treatment of foot and ankle problems ranging from tendonitis, bunions, (heel, foot or ankle) pain, ankle sprains, ingrown toenails, plantar fasciitis and fractures to the most complex surgeries. The foot doctors of Foot and Ankle Centers of North Houston are the experts in podiatric care and are nationally-recognized for their expertise in foot and ankle surgery.
Pediatric Care
Primary Care
Family Practice
Diabetic Foot Care

Kidney Stones

Endocrinologist

Diabetes Care

Ultrasound
Physical therapy. Physical therapy may include strengthening exercises, soft-tissue massage/mobilization, gait and running re-education, stretching and ultrasound therapy.
MRI
The diagnosis of Neuromas is made by a physical exam and a thorough history of the patient’s complaint. Conditions that mimic the pain associated with Neuromas are stress fracture of the metatarsals, inflammation of the tendons in the bottom of the toes, arthritis of the joint between the metatarsal bone and the toe, or nerve compression or nerve damage further up on the foot, ankle, knee, hip, or back. X-rays are generally taken to rule out a possible stress fracture or arthritis. Because nerve tissue is not seen on an x-ray, the x-ray will not show the neuroma. A skilled foot specialist will be able to actually feel the neuroma on his exam of the foot. Special studies such as MRI and CT Scan have little value in the diagnosis of a neuroma. However, ultra sound testing has been shown to be very effective in diagnosing neuromas. Neurological testing such as neuro sensory motor testing is also helpful in diagnosing a neuroma. If the doctor on his exam cannot feel the neuroma, and if the patient’s symptoms are not what is commonly seen, then nerve compression at another level should be suspected. In this instance, one area to be examined is the ankle.
X-Rays
Computed Tomography

Arthroscopy
Ankle Surgery
Dr. Armstrong is a Diplomate of the American Board of Podiatric Surgery and a Fellow with the American College of Foot and Ankle Surgeons. Dr. Armstrong is Board Certified in foot and ankle Surgery and he is a member of the American and Texas Podiatric Medical Associations.
Metatarsal Surgery
There are numerous over the counter treatments for corns and calluses. Some of these remedies have an acid in them that burn the callous off. Care should be taken when using these medications. If used incorrectly they can cause a chemical burn to the skin. Additionally these remedies are only temporary because the source of the pressure has not been alleviated. Professional treatment consists of using a special shoe insert called a functional orthotic that corrects foot function. In certain instances surgery may be recommended. Surgery is directed at correcting the alignment of the offending bone. Cutting out the callous will only make the condition worse if the underling boney problem is not corrected. Metatarsal surgery is discussed in another section.
Bunions
The classic bunion, medically known as hallux abductovalgus or HAV, is a bump on the side of the great toe joint. This bump represents an actual deviation of the 1st metatarsal and often an overgrowth of bone on the metatarsal head. In addition, there is also deviation of the great toe toward the second toe. In severe cases, the great toe can either lie above or below the second toe. Shoes are often blamed for creating these problems. This, however, is inaccurate. It has been noted that primitive tribes where going barefoot is the norm will also develop bunions. Bunions develop from abnormal foot structure and mechanics (e.g. excessive pronation), which place an undue load on the 1st metatarsal. This leads to stretching of supporting soft tissue structures such as joint capsules and ligaments with the end result being gradual deviation of the 1st metatarsal. As the deformity increases, there is an abnormal pull of certain tendons, which leads to the drifting of the great toe toward the 2nd toe. At this stage, there is also adaptation of the joint itself that occurs.
Gangrene
Nerve Damage (neuropathy): This causes loss of feeling in the foot, which normally protects the foot from injury. The protective sensations of sharp/dull, hot /cold, pressure and vibration become altered or lost completely. Furthermore, nerve damage causes toe deformities, collapse of the arch, and dry skin. These problems may result in foot ulcers and infections, which may progress rapidly to gangrene and amputation. However: Daily foot care and regular visits to the podiatrist can prevent ulcerations and infections.
Arthroscopy
Ingrown Toenails
As the patient develops diabetic neuropathy, they have a greater risk of developing skin ulcerations and infections. Areas of corns and callouses on the feet represent areas of excessive friction or pressure. These areas, if not properly cared for by a foot specialist, will often break down and cause ulcerations. Ulcerations and infection can form under the calloused area. These calloused areas may not be painful. As a result, they can progress to ulceration without being noticed. Ingrown toenails can progress to severe infections in people with neuropathy. Simple things like trimming the toenails present a risk to these patients because they may accidentally cut the skin and not feel it. People with neuropathy must be very cautious and inspect their feet daily. They should not soak their feet in hot water or use heating pads to warm their feet. This can result in accidental burns to the skin. Barefoot walking should be avoided because of the risk of stepping on something sharp and not being aware of it. The inside of the shoes should be inspected before putting the shoes on to insure that no foreign object is inside the shoe.

Plastic Surgeons

Hammertoe Surgery
He has significant experience performing bunion and hammertoe surgery, surgical repair of flatfoot, and rearfoot reconstruction, but is extensively trained in all foot and ankle procedures.

Corns
Soft corns are areas of white moist skin between the toes. They most commonly occur between the fourth and fifth toes. They can be very painful and if not treated can form small ulcerations or sinus tracts that can become infected. Acute athlete’s foot can mimic the soft corn. The soft corn is due to an irregularity in the shape of the bone in the fourth or fifth toes.
Cyst
Ulcer
Varicose veins refer to an enlargement of the veins and a loss in the ability of the vein to properly maintain blood flow back toward the heart. When this occurs blood can collect in the feet and legs. Superficial varicose veins may appear as unsightly cords or a small bunch of grapes, which usually appear on the tops of the feet, around the ankles and may extend upward to the knees and thighs. Deep varicose veins while usually not visible will result in chronic swelling of the feet, ankles and legs. When the blood is not circulated from the feet back to the heart gravity will cause the fluid to collect in the feet and ankles. This results in swelling, called edema. Chronic edema over a long period of time may cause a discoloration of the skin around the ankles. The skin can become inflamed, and is know as venous stasis dermatitis. If left untreated the skin will become weakened and a weeping sore will develop, usually on the inside of the ankle called a venous stasis ulcer.
Calluses
The most common area for the formation of calluses on the bottom of the foot is in the area of the ball of the foot. This is a weight bearing area where the long bones behind the toes called metatarsals, bear the greatest amount of weight and pressure. If one or more of these long bones (metatarsals) is out of alignment then excessive pressure is generated in the area producing a callous. The callused area can be very discreet and have a “core” or they can be more dispersed covering a larger area. These areas can become quite painful as the skin thickens. People who have diabetes are at risk of these areas breaking down producing sores or ulcerations that can become infected. People with diabetes should not try home remedies and should see a doctor for the treatment.
Fungus
The most common cause of yellowed, thick and/or deformed toenails is a fungal infection of the toenail. The fungus that infects the nail, most commonly, is the same fungus that causes athletes foot. It tends to be slowly progressive, damaging the nail to a greater and greater degree over time. The infection usually starts at the tip of the nail and works its way back. It usually is not painful and often not noticed until it has gotten well established. A single toenail or any number of nails can be affected. It can also occur on just one foot. Over time, the nail becomes thickened, crumbly, and distorted in appearance. Sweaty feet contribute to the initial infection process and contribute to its spread. The fungus prefers an environment that is moist, dark and warm, which is why it affects the toenails much more often than fingernails. It does not spread through the blood stream. The infection limits itself to the nails and skin. It is often found in association with areas of dry scaly skin on the bottom of the foot or between the toes. The dry scaling skin is frequently found to be chronic athletes’ foot. It is not highly contagious, and family members are almost as likely to contract it from some other source as they are from the family member who has the infection. Keeping common showering areas clean is recommended, and sharing shoes should be avoided.
Lesions
There are a variety of ways to treat warts. The over-the-counter medications have a difficult time penetrating the thick skin on the bottom of the foot, so they do not work well in this area. Professional treatment consists of burning the wart with topical acids, freezing with liquid nitrogen, laser surgery or cutting them out. All methods have the possibility of the wart coming back. Surgical excision of the wart has the highest success rate with a relatively low rate of recurrence. There is some mild discomfort with this procedure and it takes several weeks for the area to completely heal. Normal activity can generally be resumed in a few days depending on the size and number of warts that have been removed. The risks associated with surgical removal of warts are the possibility of infection, or the formation of a scar, which can be painful when weight is applied while walking. Laser removal of the wart works by burning the wart with a laser beam. The area must be numbed with an anesthetic prior to the procedure. There is little advantage to removing warts with a laser unless the warts are very large (mosaic warts) or there are a large number to be removed. The risks associated with the use of the laser are the same as for cutting the warts out. These risks include infection and the development of a scar after healing. A new type of laser has been developed to treat several different types of skin lesions called the Pulsed Dye Laser. This new laser has promise in the effective treatment of warts. Freezing the wart with liquid nitrogen is another form of treatment. This form of treatment when the warts are on the bottom of the foot can be very painful and take several days or weeks to heal. Topical acids can also be a useful means of treating warts. The advantage to this form of treatment is the fact that they are nearly painless and there is no restriction of activity. The down side to this form of treatment is that it frequently requires several treatments and the failure rate is higher than surgical excision of the wart.
Psoriasis
Not all thicken or yellowed toenails are caused by a fungal infection. Injury to a toenail can cause the toenail to grow in a thickened or malformed fashion. This can be due to an established fungal infection or may be due to the damage caused to the nail root when it was injured. In these instances, treatment with anti-fungal medications will not correct the malformed nail. Other causes of thickened toenails are small bone spurs that can form under the toenail and psoriasis. Taking a scraping of the toenail and culturing it makes the diagnosis.
Burns

Physical Therapists

Sports Medicine
Dr. Margolis is a Diplomate of the American Board of Podiatric Surgery and a Fellow with the American College of Foot and Ankle Surgeons. Dr. Margolis is Board Certified in Foot Surgery and he is a member of the American and Texas Podiatric Medical Associations. Dr. Margolis is also a member of the American Association of Podiatric Sports Medicine and a dedicated sponsor of youth sports teams in the Cypress Fairbanks area. Dr. Margolis was a former Board Member of the Cypress Creek YMCA. Dr Margolis remains a dedicated sponsor of the Arts.
Physical Therapy
Flatfoot Correction
Heel Pain
Orthotics and Prosthetic Therapy

General Podiatry
Dr. Jason Armstrong is a 1998 graduate of the California College of Podiatric Medicine. He completed his three year residency at the Houston Podiatric Foundation before joining the Foot and Ankle Centers in July of 2001.
Achilles Tendonitis
Achilles tendonitis is an inflammation of the Achilles tendon. This inflammation is typically short-lived. Over time, if not resolved, the condition may progress to a degeneration of the tendon (Achilles tendonosis), in which the tendon loses its organized structure and is likely to develop microscopic tears. Sometimes the degeneration involves the site where the Achilles tendon attaches to the heel bone. In rare cases, chronic degeneration with or without pain may result in rupture of the tendon.
Bunions Problems
One of the more common conditions treated by podiatric surgeons is the painful bunion. Patients with this condition will usually complain of pain when wearing certain shoes, especially snug fitting dress shoes, or with physical activity, such as walking or running. Bunions are most commonly treated by conservative means. This may involve shoe gear modification, padding and orthoses. When this fails to provide adequate relief, surgery is often recommended. There are several surgical procedures to correct bunions. Selection of the most appropriate procedure for each patient requires knowledge of the level of deformity, review of the x-rays and an open discussion of the goals of the surgical procedure. Almost all surgical procedures require cutting and repositioning the first metatarsal. In the case of mild to moderate bunion deformities the bone cut is most often performed at the neck of the metatarsal (near the joint).
Calluses
Diabetic Foot Care
Dr. De Los Santos specializes in a wide array of surgeries and treatments related to the foot and ankle, including sports medicine, pediatrics, arthroscopy, limb salvage, diabetic foot care, diabetic wounds, and trauma. He is also well published and has been a speaker at local and national podiatry seminars. Dr. De Los Santos is fluent in Spanish and is currently accepting new patients.
Hammertoes
Preventative treatment of hammertoe is directed toward the cause of the deformity. A functional orthotic is a special insert that can be prescribed by your podiatrist to address the abnormal functioning of the foot that causes the hammertoe. Functional orthotics can be thought of as contact lenses for your feet. They correct a number of foot problems that are caused by an abnormally functioning foot. Our feet, much like our eyes, change with time. Functional orthotics slow down or halt this gradual change in the foot. Often when orthotics are used for flexible hammertoes, the toes will overtime straighten out and correct themselves. Calf stretching exercises are also helpful. Calf stretching can help to overcome part of the muscle imbalance that causes the hammertoe.
Heel Spurs
To understand the cause of the pain one must understand the anatomy of the foot and some basic mechanics in the function of the foot. A thick ligament, called the plantar fascia, is attached into the bottom of the heel and fans out into the ball of the foot, attaching into the base of the toes. The plantar fascia is made of dense, fibrous connective tissue that will stretch very little. It acts something like a shock absorber. As the foot impacts the ground with each step, it flattens out lengthening the foot. This action pulls on the plantar fascia, which stretches slightly. When the heel comes off the ground the tension on the ligament is released. Anything that causes the foot to flatten excessively will cause the plantar fascia to stretch greater than it is accustom to doing. One consequence of this is the development of small tears where the ligament attaches into the heel bone. When these small tears occur, a very small amount of bleeding occurs and the tension of the plantar fascia on the heel bone causes a spur on the bottom of the heel to form. Pain experienced in the bottom of the heel is not produced by the presence of the spur. The pain is due to excessive tension of the plantar fascia as it tears from its attachment into the heel bone. Heel spur formation is secondary to the excessive pull of the plantar fascia where it attaches to the heel bone. Many people have heel spurs at the attachment of the plantar fascia without having any symptoms or pain. There are some less common causes of heel pain but they are relatively uncommon.
Heel Pain
Foot Infections
Ulcerations, infections and gangrene are the most common foot and ankle problems that the patient with diabetes must face. As a result, thousands of diabetic patients require amputations each year. Foot infections are the most common reason for hospitalization of diabetic patients. Ulcerations of the feet may take months or even years to heal. It takes 20 times more energy to heal a wound than to maintain a healthy foot.
Ingrown Toenails
Treatment for ingrown toenails is relatively painless. The injection to numb the toe may hurt some, but a skilled doctor has techniques to minimize this discomfort. Once the toe is numb, the nail margin is removed and the nail root in this area is destroyed. The doctor may use an acid to kill the root of the nail, but other techniques are also available. It may take a few weeks for the nail margin to completely heal, but there are generally no restrictions in activity, bathing or wearing shoes. Once the numbness wears off, there may be some very mild discomfort. A resumption of sports activities and exercise is generally permitted. There are very few complications associated with this procedure. Recurrence of the ingrown toenail can occur a small percentage of the time. Continuation of the infection is possible which can be controlled easily with oral antibiotics. On occasion, the remaining nail may become loose from the nail bed and fall off. A new nail will grow out to replace it over several months. With removal of the nail margin, the nail will be narrower and this should be expected.
Foot Orthotics
The next phase of treatment might consist of continued calf muscle stretching exercises, cortisone injections and orthopedic taping of the foot to support the arch. If this treatment fails, or if there is reoccurrence of the heel pain, then functional foot orthotics might be considered. A functional orthotic is a device that is prescribed and fitted by your foot doctor, which fits in normal shoes like an arch support. Unlike an arch support, however the orthotic corrects abnormal pronation of the subtalar joint. Thus orthotics address the cause of the heel pain – abnormal pronation of the foot.
Plantar Fasciitis
The doctors at the Foot and Ankle Center are excited to also offer a new treatment, Extracorporeal Shock Wave Therapy, for chronic plantar fasciitis “heel pain”. Extracorporeal” means “outside the body”. Shock waves are created by very strong acoustic (sound) energy. Your ESW treatment will be performed with a device called the OssaTron. The OssaTron is a shock wave generator very similar to the shock wave devices used to treat kidney stones without surgery. The shock waves are created by a spark plus that is enclosed in a soft plastic dome filled with water. During ESW treatment, this dome is placed close against the heel so that the shock waves pass through the dome to the heel. ESW treatment has recently been found to be effective for treating chronic proximal plantar fasciitis.
Podiatric Surgery
Dr. Butts is a Diplomate of the American Board of Podiatric Surgery and a Fellow with the American College of Foot and Ankle Surgeons. Dr. Butts is a member of the American & Texas Podiatric Medical Associations. Dr. Butts lives in Spring with his wife and children. In his spare time he likes to hunt, ranch, travel and spend time with his family.

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