
AC Joint Separation (Shoulder Separation) Treatment in Coachella Valley
An AC joint separation, commonly known as a shoulder separation, is a common injury that affects the acromioclavicular (AC) joint, where the collarbone (clavicle) meets the highest point of the shoulder blade (acromion). This injury often occurs after a fall, sports collision, or direct impact to the shoulder. Although many people confuse a shoulder separation with a shoulder dislocation, the two conditions affect different structures within the shoulder. At Spencer Orthopedics, we provide comprehensive diagnosis and treatment options for AC joint injuries, helping patients return to work, sports, and daily activities with improved comfort and function.
What Is an AC Joint Separation?
The AC joint connects the clavicle (collarbone) and the acromion (part of the shoulder blade). Strong ligaments stabilize this joint and help maintain proper shoulder alignment. A shoulder separation occurs when these ligaments become stretched or torn due to trauma. AC joint injuries are classified by severity:
- Grade I: A mild sprain involving stretching of the AC ligaments without significant joint displacement.
- Grade II: Partial tearing of the AC ligaments with mild separation of the joint.
- Grade III: Complete tearing of the AC ligaments and coracoclavicular ligaments, resulting in visible separation.
- Grade IV–VI: More severe injuries involving significant displacement of the clavicle and extensive ligament damage. These injuries are less common and often require surgical treatment.
Common Causes of AC Joint Separation
- Falling directly onto the shoulder
- Contact sports injuries (football, hockey)
- Bicycle and motorcycle accidents
- Skiing and snowboarding accidents
- Motor vehicle collisions
Symptoms of an AC Joint Separation
- Pain at the top of the shoulder
- Swelling and bruising around the AC joint
- Tenderness to touch
- Difficulty lifting the arm or reaching across the body
- Reduced shoulder motion
- A visible bump on top of the shoulder in more severe injuries
- Shoulder weakness and joint instability
Diagnosing an AC Joint Separation
Your orthopedic specialist will evaluate joint alignment, tenderness, swelling, shoulder motion, strength, and joint stability. X-rays are used to determine the degree of separation, clavicle displacement, and any associated fractures. MRI may be used in selected cases to evaluate ligament injuries and surrounding soft tissues.
Non-Surgical Treatment Options
Most Grade I and Grade II injuries can be treated without surgery through sling immobilization, activity modification, ice therapy, anti-inflammatory medications, and physical therapy focused on restoring range of motion, shoulder strength, stability, and safe return to sports.
Surgical Treatment for AC Joint Separation
Surgery may be recommended for high-grade separations, significant displacement, persistent pain, chronic instability, athletes with high functional demands, or failure of conservative treatment. AC joint reconstruction restores the position of the clavicle and repairs or reconstructs the damaged ligaments using minimally invasive methods and specialized fixation devices.
Recovery and Rehabilitation
Many patients recover successfully with conservative treatment within several weeks. Patients who undergo surgery typically require sling protection, progressive rehabilitation, strengthening exercises, and gradual return to activities. Full recovery may take several months depending on injury severity and individual healing factors.
When Should You See an Orthopedic Specialist?
Seek evaluation if you experience:
- Shoulder pain after a fall or impact
- Swelling at the top of the shoulder
- A visible bump near the collarbone
- Difficulty lifting your arm
- Persistent pain, weakness, or shoulder instability
If you have suffered a shoulder injury or are experiencing pain near the collarbone or AC joint, contact Spencer Orthopedics today to schedule a consultation and learn more about your treatment options.











