Surgery and Recovery: What to Expect

If you and your child’s orthopedic surgeon decide that surgery is the best path forward, understanding the “how” and “when” can help you prepare for the road to recovery. The goal of surgery for congenital pseudarthrosis of the clavicle (CPC) is to turn a “false joint” into a solid, stable bone ^[1].

The Three Steps of the Procedure

Surgeons typically follow a three-part process to repair the collarbone:

1. Resection: The surgeon carefully removes the fibrous “false joint” tissue and the smooth, rounded ends of the two bone segments to expose healthy, “bleeding” bone that is ready to heal ^[2][1].
2. Bone Grafting: Because there is often a gap between the two bone segments, a bone graft is used to bridge the space. The “gold standard” for this is an autologous iliac crest bone graft—meaning a small piece of bone is taken from your child’s own hip bone ^[1][3]. This graft provides the living cells and structure needed for new bone to grow. While the child’s own bone is preferred, surgeons sometimes use donor bone (allograft) or bone-stimulating proteins to avoid a second incision at the hip ^[3].
3. Internal Fixation: To keep the bone pieces perfectly still while they fuse, the surgeon uses hardware. This is usually either a plate and screws (which sits on top of the bone) or Kirschner wires (K-wires) (pins that go through the middle of the bone) ^[1][2].

Success Rates and Complications

Surgery is highly successful, but like any procedure, it has specific risks.

• Union Rate: Research shows that approximately 87.4% of children achieve a solid bone union after the first surgery ^[4].
• Complication Rate: About 15.7% of cases involve a major complication ^[4][5]. While this sounds frightening, “major” in this context typically means a complication that requires a second surgery to fix the bone or adjust hardware, rather than a life-threatening event. These complications can include the bone failing to heal (non-union) or infection ^[5][1].
• Hardware Migration Warning: If pins or Kirschner wires (K-wires) are used, they carry a severe risk of migrating into the chest or nearby vital structures, which is a major complication requiring immediate medical attention ^[5][1]. To avoid this dangerous risk, many surgeons now strongly prefer using plates and screws to secure the collarbone.

The Recovery Timeline

Recovery is a marathon, not a sprint. While every child is different, you can generally expect the following timeline:

• Hospital Stay: Most children stay in the hospital for 1–2 days for pain management, particularly because the hip graft site can be more uncomfortable than the collarbone itself ^[6][7].
• Initial Immobilization: Your child will likely need to wear a sling or a special wrap to keep the shoulder still for 4 to 6 weeks ^[8].
• Physical Therapy: After the 4 to 6 weeks of immobilization, physical therapy or specific at-home stretching exercises are often recommended to help your child regain full shoulder mobility and strength.
• Activity Restrictions: High-energy play, contact sports, and playground activities are typically restricted for 3 to 6 months to ensure the bone has fully solidified ^[8][9].
• Hardware Removal: If a plate is used, it may be left in permanently unless it becomes “symptomatic” (bothers the child under the skin). If pins or K-wires are used, they are often removed in a simple procedure once the bone has healed ^[10][11].

What About the Hip?

Parents are often most worried about the hip graft. While it does mean a second small incision, pediatric patients tend to have much lower rates of long-term hip pain than adults ^[12]. Surgeons use specialized techniques to minimize pain and ensure the hip bone grows back completely on its own ^[13][14].

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