Plantar fasciitis and heel spurs

What is plantar fasciitis?

Plantar fasciitis is an irritation of the plantar fascia, the thick fibrous tissue that connects your heel to your toes and supports the arch of your foot. This structure plays a fundamental role in every step you take, and when it becomes painful, even the simplest daily tasks become difficult.

To fully understand this condition, you first need to know the anatomy and role of the plantar fascia in your foot.

Anatomy of the plantar fascia

The plantar fascia attaches to the heel, specifically to the bone called the calcaneus, and extends to the base of the toes in a fan-like shape. This structure acts as a natural spring when walking. It supports your arch and absorbs shock with every step you take, whether you're walking to the mailbox or running a marathon.

When you walk or run, the fascia repeatedly stretches and contracts. With each step, your body weight applies considerable force to this structure. Under normal conditions, the fascia tolerates these stresses well. However, this action can lead to micro-injuries if the load exceeds the tissue's ability to adapt.

Studies show that fasciitis involves collagen degeneration rather than classic inflammation. Collagen is the protein that gives fascia its strength, and when it breaks down, the tissue becomes less resistant to everyday stresses. Some experts therefore prefer the term "plantar fasciopathy" to describe this condition more accurately, as the suffix "opathy" refers to a disease or disorder without necessarily implying inflammation.

This distinction may seem technical, but it is important for understanding why modern treatments focus on strengthening and adapting tissue rather than simply reducing inflammation.

What is the difference between fasciitis, fasciopathy, and Lenoir's spine?

These three terms are often confused, and it is not uncommon for patients to arrive at the clinic worried after seeing "Lenoir's spine" on their X-ray report. Let's clarify these concepts to help you better understand your condition.

Plantar fasciitis involves inflammation of the fascia, usually in the acute phase when the pain has just appeared. Plantar fasciopathy refers to irritation and degeneration of the fascia without active inflammation, which is more accurate in most cases. Lenoir's spine, on the other hand, is bone calcification that appears at the point where the fascia attaches to the heel, but does not cause pain directly.

The myth of Lenoir's thorn

Lenoir's spine deserves special attention because it causes a lot of concern among patients. This bony growth appears on the X-rays of many people who have no heel pain. In fact, about 50% of people over the age of 50 have a Lenoir's spine that is visible on X-rays without showing any symptoms.

This important fact reveals something crucial to your understanding of the condition. The size of the spur does not correlate with the intensity of the pain. You may have a large bone spur and no pain, or a small bone spur and a lot of pain, or even intense pain with no visible bone spur. The bone spur is simply a bony reaction to repeated pulling of the fascia at its attachment point, much like a callus that forms on the skin in response to friction.

The treatment remains the same, with or without the spur. This information often reassures patients who are concerned about this radiological finding and who imagine that surgery will be required to remove this "spike" in their heel. In reality, the spur is not the problem; it is the irritated fascia that causes your pain. If you also have pain in the back of your heel, it could be Achilles tendinopathy, a different but related condition.

What are the causes of plantar fasciitis?

Plantar fasciitis results from mechanical overload of the fascia, often caused by a sudden increase in activities such as prolonged walking or running. To fully understand how this condition develops, it is necessary to examine the mechanism of overload and the typical situations that trigger it.

The overload mechanism

The plantar fascia has a limited capacity to adapt, like all tissues in your body. Think of this capacity as a reservoir that can fill up and empty. When the load imposed exceeds this capacity, micro-lesions appear in the collagen fibers of the fascia. These small microscopic tears are not necessarily problematic in themselves, as the body can normally repair them during periods of rest.

The problem arises when you don't give your fascia enough time to recover. Without this recovery time, micro-injuries accumulate faster than they can be repaired. The tissue gradually becomes more fragile and irritated, and that's when pain sets in. This process can take days or weeks, depending on the intensity of the overload and your individual ability to recover.

Classic examples of development

Here are some typical situations that trigger plantar fasciitis in our patients. You may recognize your own story in one of these scenarios.

Walking barefoot on the beach during your vacation when you usually wear cushioned shoes is a sudden change for your fascia. Soft sand requires more stabilization work from your foot, and the lack of support from your usual shoes significantly increases the stress on the fascia.

Wearing flat sandals at the beginning of summer after wearing boots with support all winter is too sudden a transition. Your feet suddenly lose the support they had become accustomed to for months, and the fascia must compensate for this loss of support.

Resuming running without adequately increasing training volume is a common cause of injury among runners, as is tibial periostitis. For example, going from 10 kilometers per week to 30 kilometers in a few weeks places a strain on the fascia that it cannot tolerate without gradual adaptation.

Starting a job that requires you to stand all day when you previously worked sitting down represents a major change in the strain placed on your feet. Standing for eight hours without being used to it can easily trigger plantar fasciitis.

Changing running shoes without an appropriate transition period, even for a supposedly better model, can cause problems. Each shoe model puts slightly different stress on your foot, and your fascia needs time to adapt to these new stresses.

The common factor in all these scenarios is a sudden change in the mechanical stresses placed on the foot. Your fascia can adapt to almost any load if you give it enough time, but sudden changes exceed its ability to adapt.

What are the risk factors?

Risk factors for plantar fasciitis include lack of ankle flexibility, weak foot muscles, high BMI, and prolonged standing at work. Some of these factors can be modified to reduce your risk of developing this condition or to speed up your recovery.

This table shows you where you can take action to improve your situation. Modifiable factors represent opportunities for intervention, while non-modifiable factors simply help you understand your individual risk.

Biomechanical factors

Limited dorsiflexion of the ankle, i.e., when your foot has difficulty lifting toward the shin, is the most well-documented risk factor in scientific research. An ankle that lacks mobility forces your foot to compensate in a way that increases stress on the fascia with every step. If you can't bring your knee past your toes when you squat, you probably have limited dorsiflexion that contributes to your problem.

Weakness in the intrinsic muscles of the foot is an emerging factor that is gaining increasing attention in recent research. These small muscles in your foot stabilize the arch and help control the movement of your foot when walking. When they are weak, the fascia has to work harder to maintain the structure of your foot, which increases the risk of overload. Studies have shown that people with chronic plantar fasciitis often have reduced muscle volume in these small foot muscles. Proprioceptive rehabilitation specifically targets the strengthening of these stabilizing muscles.

What are the typical symptoms?

Symptoms of plantar fasciitis include pain in the heel or under the foot, which is particularly intense in the morning when taking the first steps, improves with movement, but returns after prolonged immobility. This very characteristic pain pattern often helps to identify the condition even before clinical examination.

The characteristic pain pattern

Morning pain is the hallmark symptom of plantar fasciitis, and is almost the only way to identify this condition. During the night, your fascia contracts and shortens in a resting position, much like an elastic band that returns to its natural shape when you stop stretching it. The first steps in the morning suddenly stretch it from this contracted position, causing sharp pain that often makes you wince or limp for the first few minutes after waking up.

After walking for a few minutes, the fascia gradually loosens up and the pain subsides. You may even forget completely that you are in pain for several hours. But the pain typically returns after prolonged sitting, such as after a long car ride or a meeting at the office. This cycle of pain after immobility, which improves with movement, repeats itself throughout the day.

This table helps you identify situations that increase or decrease your pain. Recognizing these patterns allows you to better manage your daily activities during your recovery and understand what puts the most stress on your fascia.

Typical location

The pain is usually located at the medial heel, i.e., on the inner side of your heel, where the fascia attaches to the calcaneus. If you press with your thumb at this spot, you will probably feel marked sensitivity or a reproduction of your usual pain. Some people also experience pain along the arch of the foot, following the path of the fascia toward the front of the foot. This pain can be described as a pulling or burning sensation under the sole of the foot.

The precise location of your pain helps your physical therapist confirm the diagnosis and distinguish plantar fasciitis from other conditions that can cause foot pain, such as tarsal tunnel syndrome or metatarsalgia.

How is plantar fasciitis diagnosed?

The diagnosis of plantar fasciitis is based primarily on your symptom history and a clinical examination performed by your physical therapist or doctor. In most cases, no imaging tests are necessary to confirm the diagnosis, as the pain pattern is sufficiently characteristic to identify this condition with confidence.

Clinical examination

Your physical therapist uses several tests to confirm the diagnosis of plantar fasciitis. Palpation of the medial heel usually reproduces your pain at the point where the fascia attaches to the calcaneus. This simple but effective test allows the source of your discomfort to be pinpointed.

Stretching the fascia by extending the toes typically increases pain. Your therapist can perform this test by lifting your toes upward while palpating the fascia. This maneuver puts tension on the tissue and reproduces the pain if the fascia is irritated.

The pattern of morning pain you describe also confirms the diagnosis. Few foot conditions present this distinct characteristic of intense pain with the first steps that improves with movement.

The limitation of dorsiflexion in the ankle can be measured to identify an important risk factor. Your physical therapist will check how far your ankle can flex forward, as a restriction in this movement often contributes to the development of plantar fasciitis.

When imaging is useful

An X-ray can reveal the presence of a Lenoir's spine, but as we have seen previously, this finding does not change the diagnosis or treatment. Your doctor may order an X-ray primarily to rule out other causes of heel pain, such as a stress fracture or other bone abnormality.

Ultrasound and magnetic resonance imaging are reserved for atypical cases or those resistant to treatment. These tests can visualize thickening of the fascia and changes in tissue structure. Your healthcare provider will only consider them if your pain does not respond to conservative treatment after several months or if other conditions need to be ruled out.

The important message is that imaging is generally not necessary to diagnose and effectively treat plantar fasciitis. Clinical evaluation is sufficient in the vast majority of cases.

When should you see a physical therapist?

You should consult a physical therapist if your heel pain persists for more than 10 days despite self-management measures, if it affects your daily activities or sleep, or if you want to prevent the condition from becoming chronic. Early intervention significantly improves outcomes and speeds up your return to normal activities.

Heel pain that lasts a few days can be resolved with rest and adjustments to your activities. However, if the pain persists beyond 10 days, it is advisable to consult a physical therapist. The longer you wait, the more time the fascia has to develop degenerative changes that prolong healing. If your pain persists for several months, your therapist may also discuss options such as shock wave therapy for more stubborn cases.

Home remedies such as rest, applying ice, and wearing cushioned shoes help in the early days. But if these simple strategies are not enough, a structured treatment program becomes necessary. Your physical therapist can identify the biomechanical factors contributing to your problem and prescribe specific exercises to address these deficits.

When pain begins to limit your daily activities, such as climbing stairs, grocery shopping, or walking your dog, it's time to seek medical advice. You don't have to live with this limitation, and the sooner you receive appropriate treatment, the sooner you will regain your normal quality of life.

No medical referral required

In Quebec, you can consult a physical therapist directly without a medical referral. This accessibility allows you to get help quickly without waiting for an appointment with your family doctor, which can take weeks or months in some areas.

Your physical therapist will assess your condition and determine whether you need additional medical consultation. In most cases of plantar fasciitis, physical therapy treatment is sufficient. If your therapist detects signs that require medical attention, they will refer you to the appropriate professional.

This professional autonomy of physical therapists removes a significant barrier to access and allows you to quickly receive the care you need.

Warning signs requiring medical attention

Certain situations require medical consultation rather than a visit to a physical therapist as a first resort. These warning signs suggest a more serious condition that requires medical evaluation.

Severe pain after direct trauma to the heel, such as a fall or a hard blow, could indicate a fracture. This situation requires an X-ray to rule out bone damage.

Significant swelling, redness, and warmth in the heel suggest an infection or systemic inflammation. These signs go beyond simple plantar fasciitis and require urgent medical evaluation.

The complete inability to put weight on your foot indicates a more serious condition than typical plantar fasciitis. Consult your doctor or go to the emergency room if you cannot walk on your foot at all.

Numbness or tingling in the foot suggests nerve damage that requires medical investigation. Plantar fasciitis does not cause neurological symptoms.

A fever accompanying your foot pain could indicate an infection. This situation requires immediate medical attention, as foot infections can progress rapidly.

If you experience any of these warning signs, consult your doctor rather than your physical therapist as a first step.

What are the physiotherapy treatments?

The treatment of plantar fasciitis in physical therapy combines stretching and strengthening exercises, manual therapy, and education on managing activity levels. This multimodal approach, based on scientific evidence, yields excellent results for the majority of patients.

The initial assessment

Your first visit begins with a comprehensive assessment that allows your physical therapist to understand your condition in its overall context. This assessment goes beyond simply looking at your painful heel.

Your physical therapist will accurately measure the mobility of your ankle and foot. Your therapist will check how far your ankle can flex forward, as restricted dorsiflexion is one of the most significant risk factors. They will also assess the mobility of your foot joints, as restrictions in these areas can contribute to the problem.

The strength of your foot and leg muscles is tested systematically. The intrinsic muscles of the foot, the calf, and the stabilizing muscles of the ankle all play a role in supporting your arch. Identifying weaknesses allows you to target strengthening exercises.

The quality of your functional movements is observed while you walk, stand on your tiptoes, or step down from a step. These tests reveal movement patterns that may contribute to fascia overload.

Your activity habits and personal goals are discussed to personalize your treatment plan. A marathon runner and someone who simply wants to walk without pain have different needs that influence treatment recommendations.

Your regular shoes are examined, as the type of shoe you wear directly affects the stress placed on your fascia. Your therapist may recommend specific changes based on the wear and characteristics of your current shoes.

Treatment approaches

This table summarizes the main approaches used in physical therapy to treat plantar fasciitis. Each intervention targets a different aspect of your condition.

Calf and plantar fascia stretching exercises are an important part of treatment. These exercises improve the flexibility of your ankle and reduce tension on the fascia. Your therapist will teach you specific stretches to perform several times a day.

High-load strengthening of the plantar fascia is the most effective intervention according to recent research. These exercises stimulate tissue adaptation and increase its ability to tolerate loads. The protocol generally involves standing on tiptoes with a gradual increase in load.

Education on load management teaches you how to adjust your activities to allow for healing while maintaining an appropriate level of activity. Understanding how to progress your activities without overloading your fascia prevents recurrence and speeds up your recovery.

High-load exercises

High-load exercises for the plantar fascia have demonstrated superior results to traditional stretching in several scientific studies. This approach stimulates the adaptation of the fascia by imposing controlled loads that promote collagen regeneration and tissue strengthening.

The classic protocol involves rising onto your toes on a step. You start by standing on a step with only the balls of your feet touching the ground and your heels in the air. You slowly rise onto your toes, hold the position for a few seconds, then slowly lower yourself back down. The slow descent phase is particularly important because it stimulates the adaptation of the fascia.

Progress is made gradually by increasing the load. You may start with both feet together, then progress to one foot at a time as your tolerance improves. Eventually, you can add weight by holding dumbbells or wearing a weighted backpack.

This approach requires patience and consistency. Results usually appear after several weeks of regular exercise. Your physical therapist will adjust the exercise prescription according to your tolerance and progress.

What can you do at home?

Several self-management strategies can complement your physical therapy treatment and speed up your recovery. These simple but effective approaches help you manage your symptoms on a daily basis, but they are not a substitute for professional evaluation and treatment if your pain persists.

Practical tips

Load management is the most important principle of self-management. Temporarily reduce activities that aggravate your pain, such as running or long walks, then gradually resume them as your symptoms improve. This modulation allows your fascia to recover without completely losing your physical condition.

Rolling a ball under your foot provides temporary relief by releasing tension in the fascia. Use a tennis ball or golf ball and roll it under your foot for 2 to 3 minutes, applying firm pressure but without causing significant pain. This technique is best performed in the evening after your daily activities.

Wearing shoes with thick, cushioned soles reduces stress on your fascia by better absorbing impact. Avoid walking barefoot or in flat sandals during the acute phase of your condition. Even at home, wear shoes or slippers with good support.

Taking frequent breaks if you work standing up helps prevent stress from building up on the fascia. Alternate between standing and sitting as much as possible during your workday. If you have to stand for long periods of time, take a few minutes every hour to sit down and relieve the pressure on your feet.

Using a prefabricated foot orthotic from a pharmacy can provide temporary relief during the acute phase. These orthotics provide additional support for your arch and reduce stress on the fascia. Choose a model with good arch support and heel cushioning.

Alternative activities

Focusing on activities that reduce stress on your foot allows you to maintain your physical fitness during recovery. Swimming, cycling, and seated exercises such as rowing are excellent options. These activities maintain your cardiovascular capacity and muscle strength without placing excessive strain on your plantar fascia.

Stationary or outdoor cycling provides an excellent cardiovascular workout while minimizing stress on your feet. The seated position completely relieves pressure on the fascia, and the pedaling motion does not cause any impact stress. To understand how to gradually resume your favorite activities, check out our guide to returning to sports.

Swimming and aqua fitness almost completely eliminate the load on your feet thanks to the buoyancy of the water. You can maintain your physical condition and even improve your strength without aggravating your plantar fasciitis.

These alternative activities prevent the frustration of complete inactivity while allowing your fascia to heal. As your symptoms improve, you can gradually resume your usual activities according to your physical therapist's recommendations. Understanding the kinetic chain also helps you understand how the movement of your ankle affects your entire leg.

How long will it take to heal?

Plantar fasciitis typically takes between 6 and 12 weeks to heal with proper treatment, although chronic cases may require several months of rehabilitation. This timeline varies considerably from person to person depending on several factors, which we will explore in this section.

Typical recovery timeline

This table gives you a realistic idea of the stages of your recovery. Each phase builds on the previous one to ensure a complete and lasting recovery.

The acute phase focuses on reducing pain and identifying aggravating factors. During these first few weeks, you learn how to manage your activities to allow the fascia to begin healing. Morning pain should gradually begin to decrease during this period.

The rehabilitation phase is the core of the treatment. You progress through your strengthening exercises and work on the biomechanical factors that contributed to the development of your fasciitis. The mobility of your ankle improves, the muscles in your foot strengthen, and your fascia gradually adapts to increasing loads.

The return to activities is gradual, following a structured plan. If you are a runner, you start with short distances at low speeds and gradually increase according to your tolerance. If you work standing up, you gradually increase the periods of standing. This controlled progression minimizes the risk of relapse.

The maintenance phase continues indefinitely to prevent recurrence. You maintain strengthening and flexibility exercises at a reduced frequency, and remain alert to signs of overload. This vigilance allows you to quickly detect and correct any signs of recurrence.

Factors influencing healing

The duration of your symptoms before starting treatment significantly affects your prognosis. Plantar fasciitis treated after a few weeks generally responds more quickly than a condition that has persisted for several months. Degenerative changes in the fascia accumulate over time, making recovery longer in chronic cases.

Your adherence to the prescribed exercises is probably the most important factor under your control. Patients who perform their exercises regularly recover more quickly and completely than those who do them sporadically. Consistency matters more than intensity in this context.

Proper management of your activity load determines whether you allow your fascia to heal or continue to overload it. Finding the balance between complete rest and maintaining an appropriate level of activity requires judgment and often the advice of your physical therapist.

Correcting modifiable risk factors speeds up your recovery and prevents recurrence. By improving the mobility of your ankle, strengthening your foot muscles, and wearing appropriate shoes, you create the optimal conditions for healing.

Studies show that 80% of patients recover completely with conservative treatment. This high success rate should reassure you about the effectiveness of non-surgical approaches to plantar fasciitis.

Patience and consistency are the keys to success. Plantar fasciitis does not resolve overnight, but with the right interventions and your commitment to treatment, you will regain your ability to walk and perform activities without pain. For some patients with persistent pain, understanding the mechanisms of chronic pain can be beneficial.

Conclusion

Plantar fasciitis is a common condition that causes particularly intense heel pain in the morning, but it responds very well to conservative treatment when you act quickly. You don't have to endure this pain indefinitely or worry that the Lenoir's spine visible on your X-ray will require surgery.

Conservative treatment yields excellent results for the vast majority of patients. The combination of high-load strengthening exercises, appropriate stretching, manual therapy, and education on load management is the most effective approach according to the best available scientific data.

The three pillars of your recovery are strengthening exercises that stimulate fascia adaptation, appropriate management of your activities to allow for recovery, and education about the factors that contributed to the development of your condition. Your physical therapist will guide you through these three aspects to ensure your full recovery.

Don't wait until your pain becomes chronic before seeking treatment. The sooner you take action, the faster and more complete your recovery will be. Acute cases generally respond better and more quickly to treatment than chronic cases that have persisted for several months.

Early consultation speeds up your return to the activities you enjoy. Whether it's running, tennis, hiking, or simply being able to walk pain-free to run errands, the right treatment will help you regain your normal quality of life. To make an appointment with our sports physiotherapy team, contact us today.

References

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• Menz HB, Zammit GV, Landorf KB, Munteanu SE. Plantar calcaneal spurs in older people: longitudinal traction or vertical compression? J Foot Ankle Res. 2008;1(1):7.

• Riddle DL, Schappert SM. Volume of outpatient visits and patterns of care for patients diagnosed with plantar fasciitis: a national study of physicians. Foot Ankle Int. 2004;25(5):303-310.

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• Rathleff MS, Mølgaard CM, Fredberg U, et al. High-load strength training improves outcome in patients with plantar fasciitis: A randomized controlled trial with 12-month follow-up. Scand J Med Sci Sports. 2015;25(3):e292-e300.

• Martin RL, Davenport TE, Reischl SF, et al. Heel pain—plantar fasciitis: revision 2014. J Orthop Sports Phys Ther. 2014;44(11):A1-A33.