Category Archives: Orthopedics

What Is Anterior Compartment Syndrome in Runners?

Anterior Compartment Syndrome (ACS) is a painful and often misunderstood condition that affects the lower leg, particularly the front portion known as the anterior compartment. For runners, this syndrome can be a frustrating barrier to performance and enjoyment, often mimicking other common injuries like shin splints but requiring very different treatment.

Understanding the Anatomy

The lower leg is divided into four compartments, each containing muscles, nerves, and blood vessels encased in a tough connective tissue called fascia. The anterior compartment houses muscles like the tibialis anterior, which is responsible for dorsiflexing the foot (lifting the toes upward).

During running, these muscles swell due to increased blood flow and exertion. Normally, the fascia can accommodate this swelling. But in ACS, the fascia is too tight, and the pressure builds up, compressing nerves and blood vessels, leading to pain and dysfunction.

Symptoms of ACS

Runners with anterior compartment syndrome typically experience:

  • Sharp, localized pain in the front of the shin
  • A feeling of tightness or cramping during exercise
  • Numbness or tingling in the foot
  • Weakness in the lower leg muscles
  • Symptoms that predictably occur after a certain duration or intensity of running and subside shortly after stopping

This pattern distinguishes anterior compartment syndrome from other injuries like shin splints, which tend to cause more diffuse pain and persist after exercise.

Causes and Risk Factors

Several factors contribute to anterior compartment syndrome in runners:

  • Overstriding and heel striking: These running form errors increase the workload on the anterior tibial muscles
  • Muscle hypertrophy: Exercise-induced swelling can increase muscle volume by up to 20%, overwhelming the compartment’s capacity
  • Young age: ACS is more common in younger runners, often appearing soon after growth plates close
  • Repetitive high-impact activity: Long-distance running and sprinting are common triggers

Diagnosis and Treatment

Diagnosis typically involves:

  • Clinical evaluation of symptoms
  • Intracompartmental pressure testing (to measure pressure inside the muscle compartment)

Treatment Options:

  1. Conservative Management:
  2. Surgical Intervention:
    • Fasciotomy: A procedure where the fascia is cut to relieve pressure and allow muscle expansion during exercise

Can You Keep Running?

While some runners can continue with modified training, many find anterior compartment syndrome too painful to ignore. Taking walking breaks during runs may help reduce symptoms temporarily. However, persistent running without addressing the underlying issue can worsen the condition and delay recovery.

Conclusion

Anterior Compartment Syndrome is a unique challenge for runners, often misdiagnosed and misunderstood. Recognizing its symptoms and understanding its biomechanical roots is essential for effective treatment. With proper intervention—whether through gait correction or surgery—many runners can return to pain-free training and even improve their performance.

What Causes an Achilles Tendon Rupture?

The Achilles tendon, named after the mythological Greek hero Achilles, is the strongest and largest tendon in the human body. It connects the calf muscles (gastrocnemius and soleus) to the heel bone (calcaneus), enabling essential movements such as walking, running, and jumping. Despite its strength, the Achilles tendon is vulnerable to rupture—a painful and debilitating injury that can significantly impact mobility. Understanding the causes of Achilles tendon rupture involves exploring anatomical, physiological, and lifestyle factors.

Primary Causes of Achilles Tendon Rupture

1. Sudden Increase in Physical Activity

  • Rapid acceleration or abrupt changes in direction during sports like basketball, soccer, or tennis can overstress the tendon.
  • Weekend warriors—individuals who engage in intense physical activity sporadically—are particularly at risk due to lack of conditioning.

2. Overuse and Chronic Tendonitis

  • Repetitive strain from running or jumping can lead to microtears and degeneration (tendinosis).
  • Chronic inflammation weakens the tendon structure over time, making it more susceptible to rupture.

3. Age and Degeneration

  • Tendon elasticity and blood supply decrease with age, especially after 30.
  • Middle-aged individuals are more prone to rupture due to cumulative wear and tear.

4. Poor Conditioning and Flexibility

  • Tight calf muscles or limited ankle mobility increase tension on the Achilles tendon.
  • Inadequate warm-up or stretching before exercise can contribute to injury.

5. Footwear and Surface

  • Wearing unsupportive shoes or training on hard, uneven surfaces can increase strain.
  • High heels shorten the tendon over time, while sudden transition to flat shoes may overstretch it.

6. Medical Factors

  • Certain medications, such as corticosteroids or fluoroquinolone antibiotics, have been linked to tendon weakening.
  • Conditions like diabetes, rheumatoid arthritis, or obesity can impair tendon health and healing.

Biomechanical and Anatomical Contributors

  • Flat feet (overpronation): This alters gait mechanics, increasing stress on the tendon.
  • Leg length discrepancies: Uneven loading can lead to chronic strain.
  • Previous injuries: Scar tissue or incomplete healing from past tendonitis or partial tears can predispose to rupture.

How Rupture Occurs

A rupture typically happens during a forceful push-off movement—like jumping or sprinting—when the tendon is suddenly overloaded. The individual may feel a sharp pain, hear a “pop,” and experience difficulty walking or standing on tiptoe. In many cases, the rupture is complete, requiring surgical repair or prolonged immobilization.

Prevention Strategies

  • Gradual increase in activity intensity
  • Regular stretching and strengthening exercises
  • Wearing appropriate footwear
  • Cross-training to avoid repetitive strain
  • Managing underlying health conditions

An Achilles tendon rupture is a multifactorial injury rooted in both lifestyle and biological factors. While it often strikes suddenly, the groundwork is usually laid through chronic overuse, poor conditioning, or age-related degeneration. By understanding the causes and taking proactive steps, individuals can reduce their risk and preserve the integrity of this vital tendon. Whether you’re an athlete or simply enjoy staying active, respecting the limits of your body is key to avoiding this painful setback.

Do Flip-flops with arch support work?

Foot orthotics really are a effective modality used by podiatric physicians to manage a wide range of foot problems. All the clinical experiences and research evidence is that they are very effective. Nevertheless, one trouble with them is that they have to be worn in footwear. That is naturally a lifestyle option, but sometimes the options and the environment do not necessarily accommodate the use of the right footwear which foot supports could be worn in.

One query which you see asked frequently is that are those flip flops that come with an arch support built into them, can they be used instead of foot supports. There are a variety of manufacturers available on the market of flip flops that have different amounts of arch support built into them.

Are they as effective as foot supports?

That’s doubtful. The support that is included in them is just like what you will receive from a premade foot orthotics or one of the typical over-the-counter kind of foot supports. That is fine if you have an average arch shape. However, that is not good if you don’t. Foot orthotics usually are built to be specific to your foot type.

Should you use them?

There’s no harm in using these and they certainly might be used as an adjunct to foot supports when you’re not wearing footwear. As if they may be utilized as an alternative, you should discuss that with your foot doctor.

I do keep hearing about the Archies on the internet, however I haven’t seen them because they are from Australia. Evidently numerous podiatry clinics around Australia retail them.

Cuboid Syndrome

The cuboid is a smaller cube shaped bone on the lateral side of the foot around about the center of the foot. The bone is a bit bigger than a common gaming dice. The bone takes part in three joints and functions as a pulley for the tendon of the peroneus longus muscle to pass under. Because this is a powerful muscle it can move the cuboid bone too much if it is not steady and overload those joints that this bone is a part of producing a disorder known as cuboid syndrome. This is probably one of the more frequent causes of pain on the lateral side of the foot, particularly in athletes. The pain typically starts out quite mild and is located around where the cuboid bone is on the outside of the foot. The discomfort is only to begin with present during exercise. If the exercise levels are not lowered the problem will generally advance and then show up after exercise in addition to during. Occasionally the pain may radiate down into the foot. Although this is the commonest reason for pain here, there are others such as tendinopathy and nerve entrapments.

The main management of cuboid syndrome is pain relief. This is generally achieved with a decrease in exercise levels and the using of strapping to immobilise and support the cuboid. Mobilisation and manipulation is often used to fix the symptoms. Over the long run foot supports may be needed to control the movement and aid the lateral arch of the foot. This helps make the cuboid more stable so it is an efficient fulcrum or pulley for the tendon to work around. Generally this approach works in nearly all cases. If it doesn’t there are no surgical or more advanced methods and a further reduction in exercise levels is often the only alternative.

The Accessory Navicular

The accessory navicular is a supplementary bit of bone on the inside of the foot just on top of the mid-foot in the vicinity of its highest part. The bone is included within the tibialis posterior tendon that attaches to the navicular bone towards the top of the mid-foot ( arch ). The additional bone can also be known as the os navicularum or os tibiale externum. This is genetic, so is existing since birth. There are a few different kinds of accessory navicular and the Geist classification is most typically used. This classification divides the accessory navicular into 3 varieties:

Type 1 accessory navicular bone:
This is the classical ‘os tibiale externum’ and make up 30% of the occurrences; it is a 2-3mm sesamoid bone embedded inside the distal area of the tendon with no link to the navicular tuberosity and could be separated from it by up to 5mm

Type 2 accessory navicular bone:
This type makes up 55% of the accessory navicular bones; it’s triangular or heart-shaped and connected to the navicular bone through cartilage. It may well eventually join to the navicular to form one bone.

Type 3 accessory navicular bone:
Prominent navicular tuberosity. This could have been a Type 2 that has fused to the navicular

The typical symptom associated with an accessory navicular is the enlargement on the inside side of the mid-foot ( arch ). Because of the additional bone there, this impacts how well the mid-foot muscles do the job and may lead to a painful foot. Inflexible type shoes, like ice skates, may also be very uncomfortable to use because of the enlarged pronounced bone.

The treatment is geared towards the signs and symptoms. When the flatfoot is an issue, then ice, immobilisation and also pain relief medication may be required to start with. Following that, physical therapy and foot orthotic inserts to aid the foot are used. When the soreness is a result of pressure from the type of shoes which needs to be used, then donut type padding is required to get pressure off the painful region or the shoes might need to be modified.

If these non-surgical therapies fail to reduce the symptoms of the accessory navicular or maybe the issue is an ongoing one, then surgery may be a suitable option. This requires removing the accessory bone and restoring the insertion of the posterior tendon so its function is improved.