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Orthopaedics and orthopaedic oncology

Patient-specific cups and pelvic reconstruction

Acetabular components and constructs for pelvic defect reconstruction — porous titanium, with fixation designed according to bone density.

Patient-specific acetabular component with a porous structure
Patient-specific acetabular component — porous titanium, designed from CT
Why patient-specific

Precise fit in complex anatomy

The component is designed from the specific patient's CT, taking into account the defect, zones of dense bone and surgical access.

  • Porous titanium surfaces for osseointegration
  • Screws follow zones of dense bone, providing primary stability
  • Adapted for cemented fixation and bearing surfaces
Patient-specific acetabular component with a porous structure on an anatomical model
Acetabular component with a porous structure on an anatomical model
Verifying the component fit on a pelvic model
Verification before surgery

The fit is verified on a pelvic model

Every component is trial-fitted on an anatomical model of the region of interest before shipment to the clinic.

Visual demonstration

The design in detail

Close-up of the porous structure of the acetabular component
Close-up of the porous structure
Patient-specific component with an augment
Component with osseointegration zones
Suture holes for oncological cases
Suture holes for oncological cases
Acetabular component on the trial-fit model
Component on the trial-fit model
Patient-specific acetabular components in various configurations
Design variants for different defects
How it is made

From CT to component

CT segmentation
01 / CT and segmentation / Defect assessment from CT
Joint replacement planning
02 / Planning / Centre of rotation, axes, fixation
Component design
03 / Component design / Approval with the surgeon
SLM printing
04 / SLM manufacturing / Porous titanium
Trial fit on the model
05 / Fit verification / Trial fit on a pelvic model
Devices and renders

Patient-specific pelvic constructs

Acetabular component on the trial-fit model
Acetabular component on the trial-fit model
Porous structure of the component
Porous structure of the component
Suture holes for oncological cases
Suture holes for oncological cases
Model of the region of interest
Model of the region of interest

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

Standard joint replacement

Planning a hip or knee from radiographs?

For primary hip and knee replacement, use BonaPlanner 2D: selection of off-the-shelf components, axes, centre of rotation, printing of the result and postoperative follow-up.

BonaPlanner 2D: selecting an implant template from the radiograph
Selecting the component size and position from the radiograph — BonaPlanner 2D
Devices

What Bonabyte manufactures

Patient-specific cups

Acetabular components matched to the patient's anatomy.

Pelvic reconstruction

Reconstruction of pelvic and acetabular defects after resections.

Oncological joint components

Patient-specific components for oncological resections.

Porous structures

Porous titanium for osseointegration, SLM printing.

Bearing surfaces

Adapted for UHMWPE liners and for cemented fixation.

Screw planning

Positions and lengths chosen for bone density and surgical access.

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.

FAQ

FAQ

Patient-specific acetabular components (cups), constructs for pelvic and acetabular reconstruction after resections, oncological joint components and porous titanium inserts for osseointegration.

Screw positions and lengths are planned according to bone density and surgical access, which improves the primary stability of the construct and the predictability of placement.

Yes, the construct can be adapted for cemented fixation and for bearing couples (for example, with a UHMWPE liner) depending on the clinical task.

For primary hip and knee arthroplasty, 2D planning from radiographs is available (Hip2D / Knee2D) with selection of off-the-shelf components and postoperative follow-up.

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
  • assess the acetabular defect from the CT
  • design a patient-specific component or augment
  • build in a porous structure for osseointegration
  • plan the fixation taking zones of dense bone into account
  • agree the design with the surgeon
What we cannot determine without the physician and the source data
  • the medical indications for surgery
  • surgical access
  • soft tissue condition
  • the prognosis of the clinical outcome
  • resection volume
  • bone quality without imaging data
  • the final fixation method
Related solutions

What else you may need

An oncology or complex orthopaedic case?

Send us a CT (for oncology, with an MRI in the same coordinates) — an engineer will prepare a patient-specific component and a fixation plan.

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. Custom 3D-printed implants for acetabular reconstruction: intermediate-term functional and radiographic results. JBJS Open Access. 2023. [source]
  3. Custom 3D-printed porous titanium augments for Paprosky type III acetabular defects. 3D Print Med. 2025. [source]

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.