An acromioclavicular (AC) joint sprain occurs when the ligaments connecting the collarbone (clavicle) and shoulder blade (acromion) are overstretched or torn.
This injury often results from a direct fall onto the shoulder or collision during sports. Depending on severity, it can cause pain, swelling, and visible deformity at the top of the shoulder.

- Pain at the top of the shoulder, especially with cross-body or overhead movements
- Swelling or bruising over the AC joint
- “Step-off” appearance or bump at the collarbone
- Weakness or pain with lifting or pushing
- Tenderness on palpation of the joint

At Unify Rehab & Performance, we begin with a comprehensive orthopedic and movement assessment to classify the injury grade and guide your recovery timeline.

Treatment may involve:

- Joint mobilizations (after the acute phase) to restore motion.
- Soft tissue therapy for surrounding muscles and fascia.
- Acupuncture to manage pain and promote tissue healing.
- Rehabilitation focusing on scapular stability, rotator cuff strength, and progressive load tolerance.
- Education on activity modification and safe return to training.

Our integrated care approach supports optimal healing and minimizes the risk of chronic shoulder dysfunction.