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Peroneal Tendon Injuries and Their Symptoms

Are individuals with high foot arches or participating in sports involving repetitive ankle motion at risk for developing peroneal tendon injuries?

Peroneal Tendon Injuries

The peroneal tendons connect the muscles of the outer side of the lower leg to the foot. They may be acute—occurring suddenly—or chronic—developing over time. The basic types of peroneal tendon injuries are tendonitis, tears, and subluxation. 

Anatomy and Function

The two major peroneal muscles (peroneus longus and peroneus brevis) are outside the lower leg, next to the calf muscles. The peroneal tendons run along the outer side of the ankle and attach to the foot, connecting these muscles to bone. They help stabilize the ankle joint, point the foot downward (plantarflexion), and turn the foot outward (eversion). In normal gait, the motion of the peroneal muscles is balanced by the muscles that invert the foot or rock the foot inward from the ankle.​ The two peroneal tendons sit one on top of the other right behind the fibula (the smaller lower leg bone). This closeness can contribute to problems with the peroneal tendons, as they rub together behind the ankle.

Tendonitis

The most common problem is inflammation or tendonitis. The tendons are usually inflamed just behind the fibula bone at the ankle joint. This part of the fibula is the bump on the outside of the ankle, and the peroneal tendons are located just behind that bony prominence. Tendonitis can either result from repetitive overuse or an acute injury. Common symptoms of tendonitis include:

  • Pain behind the ankle
  • Swelling over the peroneal tendons
  • Tenderness of the tendons
  • Pain usually worsens if the foot is pulled down and inwards, stretching the peroneal tendons.
  • X-rays of the ankle are taken.
  • MRI may show inflammation and fluid around the tendons. (Walt J. & Massey P. 2023)

Typical treatment of peroneal tendonitis is accomplished by:

Ice application

  • Applying ice to the area can help reduce swelling and control pain.

Rest

  • Resting is important to allow the tendon to heal.
  • A supportive device (walking boot or ankle brace) or crutches can help in severe cases.
  • Braces and boots provide support, reduce tendons’ stress, and allow rest and inflammation to subside.

Anti-inflammatory Medications

  • Motrin or Aleve are anti-inflammatory and can reduce the swelling around the tendon.

Physical Therapy

  • Physical therapy can help restore normal ankle joint mechanics, help with swelling and pain relief, and correct strength imbalances.

Cortisone Injections

  • Cortisone injections are low-risk if administered to the area around the tendon and not more often than every three months.
  • Ultrasound guidance can help ensure the medication is injected into the correct area. (Walt J. & Massey P. 2023)

Tendon Tears

Tears can occur and are more likely to happen in the peroneus brevis tendon. Tears are believed to be the result of two issues with the tendon. One is the blood supply. Tears of the peroneus brevis tendon almost always occur in the area where the blood supply and nutrition of the tendon are the poorest.

The second issue is the closeness between the two tendons, causing the peroneus brevis tendon to be wedged between the peroneus longus tendon and the bone. (Saxena A., & Bareither D. 2001) Tears of the peroneus brevis tendon are often treated with the same treatments for tendonitis. About half of the tears diagnosed by imaging are found to be asymptomatic. For individuals who don’t find lasting relief from symptoms, surgery may be necessary. Surgical options for peroneal tendon tears (Dombek M. F. et al., 2001)

Tendon Debridement and Repair

  • During a tendon debridement, the damaged tendon and the surrounding inflammatory tissue are removed.
  • The tear can be repaired, and the tendon can be tubularized to restore its normal shape.

Tenodesis

  • A tenodesis is a procedure where the damaged area of the tendon is sewn to the normal tendon.
  • In this case, the damaged segment of the peroneal tendon is removed, and the ends left behind are sewn to the adjacent remaining peroneal tendon.
  • Tenodesis is often recommended for tears involving more than 50% of the tendon. (Castilho R. S. et al., 2024)

Depending on the surgical procedure, Recovery after surgery can take several weeks of restricted weight-bearing and immobilization. Following immobilization, therapy can begin. Recovery is usually six to 12 weeks, depending on the surgery, but a full return to sports and activities may take several months. Risks of surgery include infection, stiffness, skin numbness near the incision, persistent swelling, and persistent pain.

Injury Medical Chiropractic and Functional Medicine Clinic

Injury Medical Chiropractic and Functional Medicine Clinic works with primary healthcare providers and specialists to build optimal health and wellness solutions. We focus on what works for you to relieve pain, restore function, prevent injury, and help mitigate issues through adjustments that help the body realign itself. They can also work with other medical professionals to integrate a treatment plan to resolve musculoskeletal problems.


The Difference of Using Custom Foot Orthotics


References

Walt, J., & Massey, P. (2025). Peroneal Tendon Syndromes. In StatPearls. https://www.ncbi.nlm.nih.gov/pubmed/31335074

Saxena, A., & Bareither, D. (2001). Magnetic resonance and cadaveric findings of the “watershed band” of the Achilles tendon. The Journal of foot and ankle surgery: official publication of the American College of Foot and Ankle Surgeons, 40(3), 132–136. https://doi.org/10.1016/s1067-2516(01)80078-8

Dombek, M. F., Orsini, R., Mendicino, R. W., & Saltrick, K. (2001). Peroneus brevis tendon tears. Clinics in podiatric medicine and surgery, 18(3), 409–427.

Castilho, R. S., Magalhães, J. M. B., Veríssimo, B. P. M., Perisano, C., Greco, T., & Zambelli, R. (2024). Minimally Invasive Peroneal Tenodesis Assisted by Peroneal Tendoscopy: Technique and Preliminary Results. Medicina (Kaunas, Lithuania), 60(1), 104. https://doi.org/10.3390/medicina60010104

Triceps Tendonitis: A Guide to Prevention and Treatment

Triceps tendonitis can be frustrating, especially when you need to rest from normal activities. Can knowing the causes, symptoms, and diagnosis help individuals understand the treatment and prevention of the condition?

Triceps Tendonitis

Tendons are connective tissue that attach muscles to bones, enabling the joints to move. Triceps tendonitis is inflammation of the tendon at the back of the elbow. It is most often caused by overuse of the triceps muscles. The condition can cause pain, swelling, and loss of function. It’s common in jobs that require regular hammering, shoveling, and overhead reaching, as well as in weightlifters, gymnasts, and boxers.

Causes

The triceps muscle runs along the back of the upper arm and is attached to the point of the elbow by a tendon. This muscle straightens the elbow. Tendonitis develops from repeatedly straightening the elbow against resistance. This causes tiny tears in the tissue, which leads to inflammation. Triceps tendonitis commonly occurs from repetitive manual labor tasks or sports activities like throwing sports, gymnastics, or boxing. Exercises that target the triceps muscle can cause tendonitis to develop, including kickbacks, dips, push-ups, and bench presses. For this reason, triceps tendonitis is also known as weightlifter’s elbow. (Orthopedic & Spine Center, N.D.)

Symptoms

Inflammation leads to a series of chemical reactions in the area of the injury. There are five main symptoms of inflammation:

  • Redness
  • Warmth
  • Swelling
  • Pain
  • Loss of function

With triceps tendonitis, the pain and stiffness are felt at the back of the elbow. Weakness may also present when using the affected arm. Tendonitis usually causes more pain with movement than when resting. Pain can occur when straightening the elbow, which puts tension on the triceps, or bending the elbow, which stretches the tendon.

Diagnosis

A healthcare provider will ask questions and perform a physical exam to diagnose tendonitis. (Harvard Health Publishing, 2014) A healthcare provider will ask you to describe the pain and the activities that make it better or worse. The elbow will be assessed for movement issues, swelling, or deformities that could indicate a worse injury, like a tendon tear. A healthcare provider will order X-rays or other imaging, such as MRI, to assess for a bone fracture or more extensive damage to the tendon.

Treatment

Several types of treatments include self-care, physical therapy, and medications.

Self Care

Triceps tendonitis can be treated at home if symptoms are addressed early. These include:

Rest

  • Rest the triceps tendon by avoiding activities that cause pain for a few days.

Ice

  • Apply ice to the triceps tendon for 15 to 20 minutes, two to three times daily.
  • Massage the area with an ice cube for several minutes.

Range of Motion Exercises

  • Decrease stiffness in the elbow with gentle range of motion exercises.
  • Slowly bend and straighten the elbow in a pain-free range, 10 times.
  • Repeat several times per day.

Physical Therapy

Physical therapists use various therapies and tools when treating tendonitis, including (Prall J. & Ross M. 2019)

PT Modalities

  • Physical therapy modalities are used to decrease pain, inflammation, and stiffness.
  • Examples include ultrasound, electrical stimulation, and light therapy.

Manual Therapy

  • Manual techniques for tendonitis include soft tissue massage, friction massage, stretching, and joint mobilization.

Exercise

  • Stretching and strengthening exercises that target the triceps muscle and any other muscle weakness that might have contributed to the condition.

Activity Modification

  • A therapist will look at the activities that led to the tendonitis and ensure you use the correct form and proper body mechanics.
  • Sometimes, a physical therapist can make on-site changes in the work environment to help prevent further injury.

Medications

Medications that are used to treat the condition (Aurora Health Care, 2025)

NSAIDs

  • Nonsteroidal anti-inflammatory medications are often used to treat tendonitis.
  • Many are available over-the-counter, including Aleve, Bayer, and Advil.
  • These medications can also be prescribed in higher doses by a healthcare provider.

Pain-Relievers

  • Additional over-the-counter medications such as Tylenol can help decrease pain.

Oral Steroids

  • These medications might be prescribed for short-term use to decrease inflammation if over-the-counter medications are ineffective in treating symptoms.
  • Long-term use of oral steroids can cause more damage to the tendons. (Spoendlin J., Meier C., Jick S. S., & Meier C. R. 2015)

Corticosteroid Injections

  • Tendonitis is frequently treated with an injection of steroid medication to decrease inflammation.
  • However, having multiple injections in the same area can eventually cause tendons to weaken more. (NYU Langone Health, 2024)

Platelet-Rich Plasma

  • PRP is made by taking a small amount of blood and separating the platelets or cells that release growth factors to promote healing.
  • The liquid is then injected into the tendon.
  • PRP is controversial; some studies support its use, while others do not.
  • While PRP may show some promise, insurance may not cover PRP treatments because of the ambiguity in the clinical data.

Injury Medical Chiropractic and Functional Medicine Clinic

Prevention is key. Warming up before a workout, stretching, and using the proper form can help prevent triceps tendonitis. Temporarily halting activities to address symptoms can prevent more serious injury. Injury Medical Chiropractic and Functional Medicine Clinic works with primary healthcare providers and specialists to build optimal health and wellness solutions. We focus on what works for you to relieve pain, restore function, prevent injury, and help mitigate issues through adjustments that help the body realign itself. They can also work with other medical professionals to integrate a treatment plan to resolve musculoskeletal problems.


From Inflammation to Healing


References

Orthopedic & Spine Center. (N.D.). Triceps Tendonitis or Weightlifter’s Elbow. https://www.osc-ortho.com/resources/elbow-pain/triceps-tendonitis-or-weightlifters-elbow/

Harvard Health Publishing. (2014). Tendonitis. https://www.health.harvard.edu/diseases-and-conditions/tendonitis

Prall, J., & Ross, M. (2019). The management of work-related musculoskeletal injuries in an occupational health setting: the role of the physical therapist. Journal of Exercise Rehabilitation, 15(2), 193–199. https://doi.org/10.12965/jer.1836636.318

Aurora Health Care. (2025). Tendonitis symptoms & treatment. https://www.aurorahealthcare.org/services/orthopedics/conditions/tendonitis

Spoendlin, J., Meier, C., Jick, S. S., & Meier, C. R. (2015). Oral and inhaled glucocorticoid use and risk of Achilles or biceps tendon rupture: a population-based case-control study. Annals of Medicine, 47(6), 492–498. https://doi.org/10.3109/07853890.2015.1074272

NYU Langone Health. (2024). Therapeutic injections for bursitis & tendinitis in adults. https://nyulangone.org/conditions/bursitis-tendinitis/treatments/therapeutic-injections-for-bursitis-tendinitis