5th Metatarsal Fracture
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The lateral foot is a common source of pain. In this article. we discuss the most common conditions that cause pain on the outer side of the foot, their symptoms, and how they are managed.
The 5th Metatarsal is also known as the baby toe. It sits on the foot’s outer side and can be injured when excess pressure or force is applied to it. This is common in running or jumping activities but may occur from trauma such as a heavy object falling on it. When a small hairline fracture appears, this is known as a 5th Metatarsal Stress Fracture.
5th Metatarsal Stress Fracture Symptoms include sharp pain on weight-bearing, swelling, and redness. There may be some bruising. It is typically painful to walk and tender to touch. It is diagnosed through an x-ray in the initial instance. If this returns as normal, a Sports Physician may refer you for an MRI or CT Scan.
Treatment involves a period in a boot, typically 4-6 weeks. This is followed by 4-6 weeks of Physical Therapy.
Three peroneus muscles run along the outer shin and wrap around the lateral ankle, with 2 of the three attaching to the 5th Metatarsal bone. Overuse or overload of these muscles can lead to Peroneal Tendonitis. When this occurs on the tendon closest to its attachment on the 5th Metatarsal, it is often referred to as a Peroneal Enthesopathy. It can often be confused as a 5th Metatarsal Stress Fracture.
Symptoms include pain and stiffness in the morning and pain with activity that may ease as the tendon warms up.
Treatment usually is conservative under the guidance of a Physical Therapist. Treatment includes strengthening exercises, taping, insoles and gait analysis.
The cuboid bone is a small bone on the outside of the foot. Its name derives from its cube-like shape, and it can become painful if excess repetitive pressure is placed through it or as the result of a sudden twist or turn. This can lead to a slight movement of the cuboid bone is referred to as a subluxated or locked cuboid throughout the literature but is most often referred to as cuboid syndrome.
It is often tender to touch and painful to do a heel raise and rotate the midfoot. It is an uncommon injury and, therefore, often misdiagnosed.
Symptoms can self-resolve with relative rest. If this is not the case, seeing a Podiatrist, Physical Therapist or Osteopath is recommended. Treatment includes massage, manipulation, mobilisation, taping, and custom insoles.
Between each toe and foot, a webspace holds the interdigital nerve. This causes pain and swelling of the nerve, commonly between the 3/4 metatarsals. Poor biomechanics, poorly fitted footwear and foot deformity can lead to compression of the interdigital nerve and forming Morton’s Neuroma.
Symptoms include burning-type pain, pins and needles, numbness, and the feeling of a pebble in one’s shoe when walking. You can diagnose Morton’s Neuroma through an ultrasound scan or an MRI.
Treatment from a Podiatrist or root specialist Physical Therapist can include mobilisations, stretching, stability exercises, and custom insoles. If this fails, it may be necessary to have an ultrasound-guided steroid injection.
The Sinus Tarsi is a small tunnel that runs outside the ankle joint. It hosts an array of ligaments, tendons, blood vessels, and nerve endings. The sinus tarsi can become irritated by abnormal foot structure, flat foot deformity, lateral ankle sprains, or systemic conditions. When this occurs, it can irritate the Sinus Tarsi and lead to pain, tingling, and burning along the lateral ankle and lateral foot.
Treatment includes ices, anti-inflammatories, Physical Therapy, and custom insoles typically. Sinus Tarsi Syndrome can require an ultrasound-guided steroid injection for irritable cases.
This rare condition involves the coalition of two bones outside the foot. This is a normal congenital condition usually not noticed until the second generation or later in a person’s life.
It can cause pain and stiffness outside the foot, especially in sports or wearing unsupportive footwear. It may promote an abnormal gait pattern.
Treatment often includes custom insoles and footwear advice. Failing this, you may require surgery.