An inflammatory (hot , red and swollen) reaction found within the sinus tarsi tunnel.
This is a tunnel, or an anatomical depression between the talus and the calcaneus, in the subtalar joint.
The subtalar joint consists of the talus on the top and the calcaneus (heel bone) on the bottom.
Within the tunnel lies several soft tissue structures: internal ligaments, muscles, nerves, blood vessels and fat. These structures contribute to the balance and stability of the ankle.
When this area gets inflamed, pain results from sinus tarsi syndrome may be from injury to the ligaments, and instability of the subtalar joint
The sinus tarsi is the lateral entry point to the subtalar joint and the syndrome occurs when one has trauma to this joint.
Sinus tarsi syndrome is found equally in men and women.
Sinus tarsi syndrome is found in adults between the ages of 18 to 50 years of age.
Dorsiflexion External Rotation Stress Test | Syndesmosis Injury
The Syndesmosis Squeeze Test | Syndesmosis Injury
The Cotton Test | Syndesmosis Injury
Cause
Trauma to foot
Instability of the sinus tarsi joints
Long-term ankle sprains
Running and in other sports that involve repetitive stress on the outside of the ankle and foot complex.
Weak ligament in the ankle (talofibular ligament)
Cysts
Degenerative changes (progressive and often irreversible deterioration; loss of function in the tissues)
Injury to the muscle located on the top of the foot (extensor digitorum brevis muscle)
A severely pronated foot ( a pronated foot is the natural way in which the foot moves/lands when walking or running)
Source: https://www.myfootshop.com/
Source: https://www.g4physio.co.uk
Source: https://ankleandfootcentre.com.au/
Symptoms
Chronic (long-term) pain along the front and side aspect (anterolateral) of the ankle?
Joint pain and stiffness (Ankle stiffness) especially first thing in the morning?
Pain when the foot is turned in or turned out especially when walking on uneven surfaces?
A feeling of instability of the foot or ankle (when bearing weight)and or ankle feels loose when rotating and/or rolling the foot?
Difficulty walking on uneven surfaces?
ankle swelling?
Bruising of the skin around the ankle?
Pain gets worst during movement and calms down at rest?
Complications /Information to beware of/General tips:
General tips
Rest – stop the exercise or activities that caused the injury until you feel better
Ice – put an ice pack (you could use a bag of frozen peas wrapped in a tea towel) on the injury for up to 20 minutes every 2 to 3 hours
Compress – wrap a bandage around the injury to support it
Elevate – if possible, keep the injured area raised on a pillow when sitting or lying down
To help prevent swelling during the first 2 to 3 days, try to avoid:
Heat, such as hot baths and heat packs
Alcohol
Massages
When you can move the injured area without pain stopping you, try to keep moving it so the tendon doesn’t become stiff.
Do
Warm up before exercising and stretch afterwards
Wear suitable shoes for exercise
Take regular breaks from repetitive exercises
Don’t
Over-exercise tired muscles
Start a new sport without some training or practice
Stick to the same repetitive exercises
NHS.UK
Please talk to your healthcare professional (i.e. Medical Doctor/Pharmacist) for further advice
Detailed Information
Please copy and paste any key words from the title: Sinus Tarsi Syndrome in the following respective 'Medtick References and/or Sources' to find out more about the disease (this also may include diagnosis tests and generic medical treatments).
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