Cranioplasty

CRANIOPLASTY

In numerous situations, it may be necessary to repair cranial defects by means of cranial implants. These defects can arise from traumas, craniectomies, tumors or malformations and must be surgically healed by cranioplasties.

Cranioplasty is a neurosurgical procedure enabling to restore the protection of the brain and to improve esthetic appearance. However, the accurate restoration of the missing part is particularly challenging.

Therefore, we propose Skullpt, a patient-specific mold, allowing the surgeon to peroperatively manufacture his implant with bone cement, producing a cost effective and very efficient way to address this situation/need.

Before the surgery

1. Before the surgery

  • The surgeon sends his images through our website. A 3D planning will be sent for the medical validation based on a 3D scan reconstruction
  • He receives the custom-made mold Skullpt, the biocompatible model of the patient's skull and accessories later –. It is sterilized by a standard method at the hospital

During the surgery

2. During the surgery

  • At the early stage of the surgery, the nurse (or surgeon) introduces the bone cement into the mold  (5 minutes).
  • Once the dissection is performed, the mold can be open to obtain the implant. 
  • The implant is validated thanks to the biocompatible model of the patient skull before implantation. The implant can still be adapted before implantation if needed.

When it is not possible to provide an accurate 3D planning (e.g. in case of a resection, cranialisation, a low quality CT-scan, ...), Skullpt becomes less optimal. We propose an adaptive implant alternative : Skullpt_bis, a patient specific guide allowing the surgeon to shape the cranial implant directly into the patient ! The implant is then finalized outside the patient to avoid any risks.

3. Technology advantages

Lots of patients have already benefit from this technology (Skullpt and Skullpt_bis), giving perfect protective and esthetic results without any infection case.

Risks of the technology

4. Risks of the technology

The major risk is the non-perfect fit of the implant into the patient's defect. To overcome this issue, a biocompatible skull model is provided to verify the fit in the defect and the implant can be adapted very easily ! Moreover, if the surgeon is not satisfied, he can reuse the mold or the guide to manufacture a new implant during the same surgery!

5. Alternatives

Nowadays, repairing skull defects is performed by manufacturing manually the implant intraoperatively without any guidelines or by means of 3D technologies creating preoperatively patient-specific implants. However, intraoperatively made implants can only offer poor-quality implants and are time consuming in the operating theater. Pre-operatively-made implants (in titanium, ceramic, ...) lead to high costs, are not adaptable during the surgery and have a long lead time.

Our innovative product overcomes the current method drawbacks by offering a very accurate reconstruction while making the surgery shorter, reducing its cost and lead time.