The Achilles tendon is the largest tendon in your body. It connects the upper calf muscles to the back of the heel bone. When the Achilles tendon degenerates and becomes inflamed, it is called Achilles tendinosis. If you have Achilles tendinosis, your tendon can swell and become painful. This condition is common in athletes, runners, and people who have calf tightness. Achilles tendinosis may occur in the middle of the tendon (known as midsubstance Achilles tendinosis) or at the point where the tendon connects to the heel bone (known as insertional Achilles tendinosis).

For midsubstance Achilles tendinosis, surgery focuses on removing the diseased portion of the tendon. If most of the tendon is damaged, your foot and ankle orthopaedic surgeon often will use the tendon that goes to the big toe to support the Achilles tendon after repair. Other procedures may include lengthening the Achilles tendon or calf muscles if they are too tight.

The goal of Achilles tendon repair is to reconnect the calf muscles with the heel bone to restore push-off strength. Regaining Achilles tendon function after an injury is critical for walking.

The goal of ankle arthrodesis (also known as ankle fusion) is to relieve pain and maintain or improve function for patients with ankle arthritis. Ankle arthritis is degeneration of the cartilage that covers the ends of the bones that form the ankle joint. These bones are the tibia, the fibula, and the talus. Pain typically is made worse with movement of the arthritic ankle. In ankle arthrodesis the ankle bones are fused into one bone. This eliminates the joint motion and reduces pain coming from the arthritic joint. 

Ankle arthroscopy is a minimally invasive surgical procedure that orthopaedic surgeons use to treat problems in the ankle joint. Ankle arthroscopy uses a thin fiber-optic camera (arthroscope) that can magnify and transmit images of the ankle to a video screen. Ankle arthroscopies can reduce ankle pain and improve overall function.

Arthroscopy can be used to diagnose and treat different disorders of the ankle joint. The list of problems that can sometimes be treated with this technology is constantly evolving and includes:

Ankle arthritis: Ankle fusion is a treatment option for many patients with end-stage ankle arthritis. Ankle arthroscopy offers a minimally invasive way to perform ankle fusion. Results can be equal to or better than open techniques.

Ankle fractures: Ankle arthroscopy may be used along with open techniques of fracture repair. This can help to ensure normal alignment of bone and cartilage. It also may be used during ankle fracture repair to look for cartilage injuries inside the ankle.

Ankle instability: Ligaments of the ankle can become stretched out, which can lead to a feeling that the ankle gives way. These ligaments can be tightened with surgery. Arthroscopic techniques may be an option for treating moderate instability.

An ankle cheilectomy is a surgery that removes a bone spur from the talus or tibia, which are the lower and upper bones of the ankle joint. 

The goal of an ankle cheilectomy is to relieve ankle pain caused by bone impingement or pinching at the front of the ankle. While this may be a sign of early ankle arthritis, an ankle cheilectomy is a joint preserving option that may help with pain and function and buy time before additional treatment is needed.

The ankle is made up of three bones:

• the tibia (shin bone), which forms the inside, front, and back of the ankle
• the fibula, which forms the outside of the ankle
• the talus, a small bone that sits between the tibia and fibula and the heel bone

The ends of these bones are called malleoli. The tibia has a medial (inside) malleoli and a posterior malleoli. The fibula forms the lateral (outside) malleoli. 

Osteochondral lesions of the talus (OLTs) are ankle joint injuries involving damage to the joint surface (cartilage) and/or underlying ankle bone (talus). A normal, healthy ankle joint is made up of smooth cartilage supported by strong bone underneath. Sometimes an ankle injury leads to damaged, rough areas of cartilage and bone underneath. Foot and ankle orthopaedic specialists call this type of injury an OLT. Since the ankle joint moves while walking, the rough spots may cause pain, swelling, stiffness, and decreased motion. It is kind of like having a pothole in the joint surface.

Bulk allograft transplantation takes bone and cartilage from a human cadaver and places it into the damaged talus. This surgery is reserved for severe cases of OLT that have either failed previous surgical treatment or involve a very large part of the talus. These types of OLTs may not respond to lesser surgeries.

Insertional Achilles tendinitis is a degeneration of the fibers of the Achilles tendon directly at its insertion into the heel bone. It may be associated with inflammation of a bursa or tendon sheath in the same area. 

Ankle sprains are one of the most common sports-related injuries. They affect 10,000 people per day. When the ligaments on the outside of the ankle are stretched or torn, patients can have pain and feelings of instability. If symptoms persist after non-surgical treatment, surgery may be required. The goal of this surgery is to restore normal stability to the ankle. This should also fix your feeling that the ankle “gives way” and any pain that is associated with an unstable ankle.

Osteochondral lesions of the talus (OLT) are ankle joint injuries involving damage to the joint surface (cartilage) and/or underlying ankle bone (talus). A normal, healthy ankle joint is made up of smooth cartilage supported by strong bone underneath. Sometimes an ankle injury leads to damaged, rough areas of cartilage and bone underneath. Foot and ankle orthopaedic specialists call this type of injury an OLT. Since the ankle joint moves while walking, the rough spots may cause pain, swelling, stiffness, and decreased motion. It is kind of like having a pothole in the joint surface.

One way to treat the damaged ankle cartilage is through surgery. One type of surgery is called mosaicplasty (MP), which is the transplant of small amounts of bone and cartilage. The primary goal of this procedure is to smooth out the surface of the ankle joint by replacing the unhealthy spots with healthy, smooth cartilage. By reconstructing the surface, pain and other symptoms should decrease or stop all together.

Percutaneous Achilles tendon lengthening in a procedure used to stretch a tight Achilles tendon and increase motion at the ankle joint.

A peroneus longus (PL) to Achilles tendon transfer is done to restore strength across the ankle joint. Strength may have been lost due to an injury to the Achilles tendon or a neurological disorder. Also, patients with Achilles tendon pain that has not improved from non-surgical treatment may benefit from this transfer. Other tendons (such as the tendon to the big toe or lesser toes) may be chosen for the transfer instead of the PL, based on the underlying anatomy and function.

The tibia (shin bone) and the fibula are the bones of the lower leg. Pilon fractures are injuries that occur at the lower end of the tibia and involve the weightbearing surface of the ankle joint. The fibula also may be broken. These injuries were first described more than 100 years ago and remain one of the most challenging problems for orthopaedic surgeons to treat. Common causes of pilon fractures are falls from a height and car accidents. 

The goals of pilon fracture surgery are to restore alignment and stability and allow healing of the tibia and fibula at the ankle joint. Once the fractures are healed, your foot and ankle orthopaedic surgeon's goals are to restore movement and strength at the patient’s ankle. 

Posterior ankle endoscopy/arthroscopy is a technique used to look at and treat problems in the back of the ankle. 

First, it’s important to understand ankle anatomy. The ankle joint is the joint between the lower leg bones (tibia and fibula) and the ankle bone (talus). The joint below the ankle joint is called the subtalar joint; it lies between the ankle bone and the heel bone (calcaneus). The talus has a bony prominence in the back next to the flexor hallucis longus (FHL) tendon. This is the tendon that moves the big toe downward toward the floor.

The bony posterior prominence might be the cause of ankle pain in some people if it is large (called a trigonal process) or it is not completely fused with the talar bone (called an os trigonum).

The subtalar joint is located just below the ankle joint between the talus and the calcaneus (heel bone). The main job of the subtalar joint is to allow for side-to-side movement of the foot and ankle. This movement aids in walking, especially on uneven surfaces.

When there is a problem in the subtalar joint, the location of pain is described as being deep. The exact location may be hard to describe. Pain may be felt in the soft spot on the outside of the ankle or in a horseshoe distribution behind and below the ankle.

The subtalar joint is located just below the ankle joint between the talus and the calcaneus (heel bone). The main job of the subtalar joint is to allow for side-to-side movement of the foot and ankle. This movement aids in walking, especially on uneven surfaces.

When there is a problem in the subtalar joint, the location of pain is described as being deep. The exact location may be hard to describe. Pain may be felt in the soft spot on the outside of the ankle or in a horseshoe distribution behind and below the ankle.

The two bones in the lower leg are the tibia and the fibula. The point just above the ankle where these two bones meet is called the syndesmosis. While technically a joint, it does not function like most joints as there is very little motion between the two bones. Its main functions are to provide stability to the ankle joint and allow for motion of the joint.

The most common way the syndesmosis is hurt is from a twisting or rotational injury to the ankle. The ligaments that support the syndesmosis are needed to stabilize it, and it is these ligaments that are stretched or torn when this type of injury occurs. Ankle sprains can injure the syndesmosis. The ligaments also can be injured when the ankle is broken. High ankle sprains that are commonly seen in football players are injuries to the syndesmosis.

Surgery of the syndesmosis most often is needed after a traumatic disruption. The goal of surgery is to properly align and stabilize the joint so the ligaments can heal in the correct position.

The talus bone makes up part of the ankle joint and the subtalar joint. The ankle joint allows for up-and-down motion and the subtalar joint supports side-to-side motion. A talar fracture is a break in the talus bone that often involves both of these important joints. 

The ankle and foot must be well-aligned for proper function. The goal of surgery is to realign the bone pieces and restore the normal bone shape. The surgery also will restore the function of the ankle and subtalar joints. This surgery should reduce the chances of developing arthritis or losing blood supply to the bone.

A tendon transfer is moving a tendon from its normal, anatomic location to another area of the foot or ankle. Tendons typically are transferred in order to restore more normal movement to a foot and ankle that has lost function. A common problem is loss of the ability to raise the foot up, which is called foot drop. This can result from nerve or muscle damage due to stroke, injury, or other diseases. This muscular weakness or paralysis decreases movement and can lead to the foot becoming bent or twisted, making it difficult or painful to stand, walk or wear shoes.

Some tendon transfers allow the ankle and foot to move up and down and regain strength and motion. Others bring the foot into a position where it is easier to walk, stand and wear shoes, but will not increase range of motion. Realigning the foot and ankle can also decrease pain by more evenly distributing pressure across the foot. In some cases, a tendon transfer may eliminate the need for a brace altogether. 

Tendoscopy is a procedure that allows an orthopaedic surgeon to see the inside of a tendon sheath to treat tendon disorders of the foot and ankle. Tendoscopy is very similar to arthroscopy. A small camera and special instruments are placed through small incisions along the course of a tendon. Sterile fluid is used to expand the sheath and provide direct exposure to the tendon.

The goal of tendoscopy is to treat tendon disorders without using large incisions. Patients have less pain and smaller scars than with traditional open surgery. Patients also can return to work and exercise sooner with this procedure versus open surgery.