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Treatment for Sprained Ankle

Sprained ankle

TREATMENT

Almost all ankle sprains can be treated without surgery. Even a complete ligament tear can heal without surgical repair if it is immobilized appropriately.

A three-phase program guides treatment for all ankle sprains—from mild to severe:

  • Phase 1 includes resting, protecting the ankle and reducing the swelling.
  • Phase 2 includes restoring range of motion, strength and flexibility.
  • Phase 3 includes maintenance exercises and the gradual return to activities that do not require turning or twisting the ankle. This will be followed later by being able to do activities that require sharp, sudden turns (cutting activities)—such as tennis, basketball, or football.

This three-phase treatment program may take just 2 weeks to complete for minor sprains, or up to 6 to 12 weeks for more severe injuries.

Home Treatments

For milder sprains, your doctor may recommend simple home treatment.

The RICE protocol. Follow the RICE protocol as soon as possible after your injury:

  • Rest your ankle by not walking on it.
  • Ice should be immediately applied to keep the swelling down. It can be used for 20 to 30 minutes, three or four times daily. Do not apply ice directly to your skin.
  • Compression dressings, bandages or ace-wraps will immobilize and support your injured ankle.
  • Elevate your ankle above the level of your heart as often as possible during the first 48 hours.

Medication. Nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen and naproxen can help control pain and swelling. Because they improve function by both reducing swelling and controlling pain, they are a better option for mild sprains than narcotic pain medicines.

Nonsurgical Treatment

Some sprains will require treatment in addition to the RICE protocol and medications.

Crutches. In most cases, swelling and pain will last from 2 to 3 days. Walking may be difficult during this time and your doctor may recommend that you use crutches as needed.

Immobilization. During the early phase of healing, it is important to support your ankle and protect it from sudden movements. For a Grade 2 sprain, a removable plastic device such as a cast-boot or air stirrup-type brace can provide support. Grade 3 sprains may require a short leg cast or cast-brace for 2 to 3 weeks.

 
Ankle brace
An air stirrup-type ankle brace.
Reproduced from JF Sarwark, ed: Essentials of Musculoskeletal Care, ed 4. Rosemont, IL, American Academy of Orthopaedic Surgeons, 2010.

Your doctor may encourage you to put some weight on your ankle while it is protected. This can help with healing.

Physical therapy. Rehabilitation exercises are used to prevent stiffness, increase ankle strength, and prevent chronic ankle problems.

  • Early motion. To prevent stiffness, your doctor or physical therapist will provide you with exercises that involve range-of-motion or controlled movements of your ankle without resistance.
  • Strengthening exercises. Once you can bear weight without increased pain or swelling, exercises to strengthen the muscles and tendons in the front and back of your leg and foot will be added to your treatment plan. Water exercises may be used if land-based strengthening exercises, such as toe-raising, are too painful. Exercises with resistance are added as tolerated.
  • Proprioception (balance) training. Poor balance often leads to repeat sprains and ankle instability. A good example of a balance exercise is standing on the affected foot with the opposite foot raised and eyes closed. Balance boards are often used in this stage of rehabilitation.
  • Endurance and agility exercises. Once you are pain-free, other exercises may be added, such as agility drills. Running in progressively smaller figures-of-8 is excellent for agility and calf and ankle strength. The goal is to increase strength and range of motion as balance improves over time.
 
Resistance exercises after ankle sprain
Once you are pain-free, resistance exercises may be added to your therapy program.
Reproduced from JF Sarwark, ed: Essentials of Musculoskeletal Care, ed 4. Rosemont, IL, American Academy of Orthopaedic Surgeons, 2010.

Surgical Treatment

Surgical treatment for ankle sprains is rare. Surgery is reserved for injuries that fail to respond to nonsurgical treatment, and for patients who experience persistent ankle instability after months of rehabilitation and nonsurgical treatment.

Ankle instabillity
This x-ray shows extreme instability of the ankle.
Espinosa N, Bluman EM: Lateral Ankle Ligament Reconstruction Using Allograft, in Flatow E, Colvin AC, eds: Atlas of Essential Orthopaedic Procedures. Rosemont, IL, American Academy of Orthopaedic Surgeons, 2013, pp 349-355.

Surgical options may include:

  • Arthroscopy. During arthroscopy, your doctor uses a small camera, called an arthroscope, to look inside your ankle joint. Miniature instruments are used to remove any loose fragments of bone or cartilage, or parts of the ligament that may be caught in the joint.
  • Reconstruction. Your doctor may be able to repair the torn ligament with stitches or sutures. In some cases, he or she will reconstruct the damaged ligament by replacing it with a tissue graft obtained from other ligaments and/or tendons found in the foot and around the ankle.

Immobilization. There is typically a period of immobilization following surgery for an ankle sprain. Your doctor may apply a cast or protective boot to protect the repaired or reconstructed ligament. Be sure to follow your doctor’s instructions about how long to wear the protective device; if you remove it too soon, a simple misstep can re-tear the fixed ligament.

Rehabilitation. Rehabilitation after surgery involves time and attention to restore strength and range of motion so you can return to pre-injury function. The length of time you can expect to spend recovering depends upon the extent of injury and the amount of surgery that was done. Rehabilitation may take from weeks to months.

Prevention

The best way to prevent ankle sprains is to maintain good muscle strength, balance, and flexibility. The following precautions will help prevent sprains:

  • Warm up thoroughly before exercise and physical activity
  • Pay careful attention when walking, running, or working on an uneven surface
  • Wear shoes that are made for your activity
  • Slow down or stop activities when you feel pain or fatigue
 

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