Ankle Sprains with Dr Thomas Fisher
For young adults who lead an active, sports-filled life, ankle sprains are not just common; they are often a rite of passage. However, understanding them is crucial to ensure proper healing and to prevent long-term complications. As an orthopaedic foot and ankle surgeon, I see these injuries on an almost daily basis but despite being very common, their presentations vary greatly from a minor sprain which will settle down within a few days to a severe injury which will not recover without intervention.
Understanding the Ankle’s Lateral Ligament Complex
The ankle is a sophisticated joint, and its stability is largely due to the lateral ligament complex. This complex comprises three main ligaments:
1. Anterior Talofibular Ligament (ATFL): The most frequently injured ligament in ankle sprains.
2. Calcaneofibular Ligament (CFL): Provides lateral stability and is often involved in more severe sprains.
3. Posterior Talofibular Ligament (PTFL): Rarely injured due to its strength and position.
These ligaments work in unison to stabilize the ankle during dynamic movements, making them vulnerable in sports.
Initial Non-Operative Management
After an ankle sprain, it's crucial to follow a structured management plan:
1. Immobilization: A Controlled Ankle Motion (CAM) boot, or moon boot is often recommended. This boot stabilizes the ankle, allowing the ligaments to heal while minimizing the risk of further injury. The duration of immobilisation and rest really depends on the duration of symptoms. Some ankle sprains will settle within a few days and in this instance, you may be able to transition out of your moon boot within a week or two. More severe sprains however may require a longer period of immobilisation up to about 6 weeks.
2. Rest, Ice, Compression, and Elevation (RICE): These measures help reduce swelling and pain in the initial days following the injury.
3. Early range of motion: While immobilisation in a moon boot is important to let the ligaments heal, it is important to also start some gentle range of motion exercises as early as pain and swelling will allow, to prevent the development of stiffness.
4. Strength, balance, proprioception and gait re-training: Once pain and swelling are improving, it is essential to start some structured rehabilitation exercises under the supervision of an experienced physiotherapist, podiatrist or other injury rehabilitation practitioner. Whether or not your injury ends up requiring surgery, these exercises are essential to your recovery and prevention of future injuries.
An ultrasound is often performed after an ankle sprain to diagnose tears of the lateral ligament complex, and an X-Ray is important to rule out any broken bones. If significant pain and swelling persists beyond 2-3 weeks it may be necessary to undergo an MRI scan to look for injuries to the cartilage within the ankle joint, or other injuries such as to the syndesmosis.
When is Surgery Needed?
While the majority of ankle sprains, even those with significant tears of the lateral ligament complex, heal without surgical intervention, there are cases where surgery becomes necessary:
1. Persistent Symptoms: If pain, instability, or functional limitations persist beyond about 3 months, despite appropriate non-operative management.
2. Repeated Ankle Sprains: Frequent sprains can lead to chronic ankle instability. Over time, this laxity in the ankle ligaments makes the joint prone to further injuries and might benefit significantly from surgical intervention.
In most cases, a direct repair of the ligament complex is suitable to stabilise the ankle. This is performed using an “anchor” in the bone, allowing repair of the ligament tissue to the bone. In some cases however this may need to be augmented with stronger material to reinforce the body’s own ligaments.
The Good News
It's essential to recognize that most ankle sprains, even severe ones, typically heal well without the need for surgery. With proper care, rest, and rehabilitation, athletes can expect to return to their sports with a stable and strong ankle.
Conclusion
In summary, while ankle sprains are a common occurrence among young, active adults, understanding the anatomy of your ankle, following a structured non-operative management plan, and being aware of when to seek surgical advice are key to a full and speedy recovery. Remember, taking care of your ankle today ensures a healthier, more active tomorrow.
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Disclaimer: This blog post is for informational purposes only and should not be taken as medical advice. Always consult a healthcare professional for specific medical concerns.
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