“It’s just a stinger” - What’s the difference between a stinger and an acromioclavicular (AC) joint injury?
Introduction
In contact sports, shoulder injuries like stingers and acromioclavicular (AC) joint injuries are common. While they may seem similar, they have distinct characteristics that set them apart. If you have injured your shoulder and are looking for a shoulder physiotherapist in Melbourne, we can help.
What is a Stinger Injury?
A stinger injury, also known as a burner, is a temporary nerve injury resulting from the stretching or compression of the brachial plexus, a network of nerves in the shoulder. Common causes include:
Traction: Shoulder pushed down while the neck is tilted.
Compression: Direct blows to the neck or shoulder.
Symptoms include radiating burning pain from the shoulder to the arm, numbness, and temporary weakness. Stinger injuries usually resolve quickly and can be managed with rest and conservative treatment. However, it is important to assess stinger injuries to make sure there is no damage to the cervical discs or nerves.
What is an Acromioclavicular (AC) Joint Injury?
An AC joint injury occurs where the collarbone meets the shoulder blade, in sport these injuries usually occur during tackling, bumping or falling onto the shoulder. Depending on severity, they can be mild sprains to complete tears.
Symptoms of AC joint injuries include:
Localised pain and a visible bump or “step” at the top of the shoulder.
Swelling and tenderness.
Limited range of motion, especially overhead movements.
Key Differences
Symptom Location:
Stinger Injury: Burning pain radiates down the arm.
AC Joint Injury: Localised pain at the top of the shoulder.
Mechanism:
Stinger Injury: Due to stretching or compression of nerves.
AC Joint Injury: Results from direct impact or falls.
Weakness:
Stinger Injury: May cause temporary weakness.
AC Joint Injury: Weakness relates mostly to pain and limited motion.
Treatment:
Stinger Injury: Focus on rest and pain management.
AC Joint Injury: Requires rehabilitation (such as shoulder taping and exercise).
Physiotherapy for AC joint injury & Stingers
Recognising the differences between stinger injuries and acromioclavicular joint injuries is crucial for proper diagnosis and treatment. If an injury occurs, our shoulder physiotherapists can assess your injury and prescribe a rehabilitation plan for your specific needs.
