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Reconstructive surgery

Oncological and post-resection reconstruction of bone defects

Once the surgeon has determined the resection strategy, we carry out the digital planning and design patient-specific reconstructive components. Bonabyte does not treat the oncological disease and does not determine the extent of resection.

Discuss a clinical caseCT protocols
Reconstruction after resection — a patient-specific plate
Patient-specific reconstruction plate after resection
Oncology CT protocols FAQ CT protocol (PDF) Discuss a clinical case
Devices and renders

Patient-specific constructs for oncology

Acetabular component on the model
Acetabular component on the model
Reconstruction plate for the maxilla
Reconstruction plate for the maxilla
Patient-specific mandibular prosthesis
Patient-specific mandibular prosthesis
Tumour resection, reconstruction with a PEEK cranial plate
Tumour resection, reconstruction with a PEEK cranial plate

Bonabyte device images and 3D renders. Manufactured individually from the patient's CT.

Devices and tasks

What Bonabyte designs

Bone defect reconstruction

Patient-specific components to replace fragments after resection.

Maxillofacial components

Replacement of facial skeleton segments, reconstruction plates, guides.

Joint components

Oncological joint components and articular surface replacement.

Pelvis and acetabulum

Constructs for pelvic reconstruction after resection, with porous titanium zones.

Resection guides

Transferring the resection plan to the operating room and positioning the fragments.

Anatomical models

Models for planning and for checking the fit intraoperatively.

Data and planning

CT, and MRI if required

For an oncological case, full coverage of the segment matters and, if required, an MRI to visualise the tumour in the same coordinates as the CT.

  • MSCT per protocol, primary axial DICOM
  • MRI (if required) — agreed separately
  • Planning the resection lines and fragment positions
  • Calculating fixation points based on bone density and surgical access
BonaPlanner: planning the osteotomy and mandibular reconstruction
Resection and reconstruction planning: osteotomy lines and plate positions are agreed with the surgeon before surgery
Documents and CT requirements

Download the protocol and materials

A correct CT scan speeds up planning and reduces rework. Download the protocol for this speciality and include a link to the DICOM when you send it.

CT protocol: general case — PDFImaging parameters for this specialityCT protocol: Microsurgery — PDFImaging parameters for this specialityAll CT protocolsThe general protocol and parameters by speciality
FAQ

FAQ

Bone defect reconstruction and repair after resection: maxillofacial components, joint components, constructs for pelvic and acetabular reconstruction, and restoration of load-bearing function and anatomy.

In oncological cases, a fine-increment MRI in the same coordinates as the CT may be required to visualise the tumour. This service is agreed separately and is not part of standard segmentation.

Screw positions and lengths are planned during 3D modelling based on bone density and surgical access, and are agreed with the surgical team.

Sources and literature

Further reading on this topic

These publications are provided as a reference for professionals. They relate to the topic of this section and are not a guarantee of the outcome in any particular case; applicability is determined by the treating physician. The list should be reviewed and expanded by a clinical specialist.

  1. Custom designed and 3D-printed titanium pelvic implants for acetabular reconstruction after tumour resection. [source]
  2. Virtual planning and guided surgery in fibular free-flap mandibular reconstruction: a 29-case series. J Craniomaxillofac Surg. 2016. [source]
  3. Kurtz SM, Devine JN. PEEK biomaterials in trauma, orthopedic, and spinal implants. Biomaterials. 2007;28(32):4845–4869. [source]
Related solutions

What else you may need

Resection and defect reconstructionOncological reconstructionMandibular reconstructionMaxillofacial surgeryPatient-specific cups and augmentsTraumatology and orthopaedicsSurgical guidesBonaPlanner 3D
What you should know

Limits of what is possible

Bonabyte designs and manufactures the device according to the treating physician's plan. Medical decisions are made by the surgeon.

What we can do
  • plan the reconstruction following the resection defined by the surgeon
  • design the replacement component
  • prepare resection guides
  • manufacture the device once the design is approved
What we cannot determine without the physician and the source data
  • the diagnosis and disease stage
  • resection volume and margins
  • the treatment approach
  • the prognosis of the clinical outcome
  • the medical indications for surgery

An oncology case?

Send us a CT (and an MRI if required) — an engineer will prepare the resection plan and the construct.

Discuss a clinical caseCT protocols

The information on this website is intended for healthcare professionals and does not constitute medical advice, a public offer or a guarantee of clinical outcome. Bonabyte devices are custom-made medical devices designed for a specific clinical task; their applicability depends on the CT data, the anatomy, the condition of the soft tissues, the surgical access and the operative plan. The final decision on the use of a device is made by the treating physician. Contraindications exist and an individual assessment of the clinical situation is required.