Shoulder · Joints, stiffness & other
AC joint reconstruction
Shoulder Separation (Acromioclavicular Joint Injury) — Coracoclavicular Ligament Reconstruction
The condition
The acromioclavicular (AC) joint is where the collarbone (clavicle) meets the top of the shoulder blade. A shoulder separation happens when the ligaments that hold the collarbone down are torn, usually from a fall onto the shoulder. In more severe injuries the collarbone rides up, causing a bump, pain, and weakness.
The surgery
AC joint reconstruction is a typically outpatient surgery done through an incision over the top of the shoulder. The collarbone is brought back into position and held with a strong suture device and/or a tendon graft that replaces the torn ligaments. Allograft (cadaver) tissue it commonly used to bolster the strength of the repair and improve healing.
Recovery at a glance
- Sling
- Worn full-time for 6 weeks, removed only for hygiene and exercises. Keep the arm supported—do not let it hang at your side.
- Daily life
- Desk work often within 1–2 weeks. No lifting or carrying with the surgical arm for the first 8 weeks. No driving while taking narcotic pain medication.
- Lifting & overhead
- Light strengthening starts ~8 weeks, with full motion expected by 12 weeks. Weight training resumes between 3 and 4.5 months; heavy pressing comes last.
- Sports
- Return is gradual from 3 months. Contact, collision, and overhead sports are typically held until 6 months, after strength testing.
A general guide. Your restrictions and timeline may change based on what is found and done at surgery.
Risks & benefits
Benefits: Restoring the position of the collarbone can relieve pain and improve shoulder strength and function. Risks are uncommon and include infection, blood clots, the collarbone shifting back up, fracture of the collarbone or coracoid, implant or suture irritation, injury to nearby structures (such as nerves, blood vessels, or cartilage), stiffness, persistent pain, and the need for further surgery. These will be reviewed with you before surgery.
Patient Surgical Information
Open, save or print. Bring your questions to your pre-op visit.
Before & after every surgery