3D Printing for Patient-Specific Surgical Planning and Rehabilitation

How personalised tools can enhance precision, anatomy and recovery

3D printing in my practice is not a marketing add-on or a cosmetic “simulation.” It is a clinical instrument used selectively when it genuinely improves planning, accuracy or patient comfort.

I use 3D printing because it supports surgical thinking, not because it sounds modern.

1. Where It Began - Early Work with Patient-Specific PEEK Implants

My interest in personalised surgical tools started early with CAD/CAM PEEK implants for cranioplasty. This work became one of the most cited publications in the field and introduced me to:

personalised implant design
skull reconstruction biomechanics
the advantages of patient-specific implants over generic alternatives

Even at that stage, I wondered if PEEK could eventually be 3D-printed on demand, allowing same-day cranial reconstruction. Years later, I would see this become reality in Switzerland.

2. Low-Cost Surgical Innovation - 3D-Printed Microsurgery Training Tools

Later, while collaborating with a colleague supporting microsurgical training in Ethiopia, we needed a high-fidelity, low-cost way to teach microvascular anastomosis without a microscope. We developed a practical solution using:

a smartphone as the “microscope”, and
3D-printed microvascular clamps designed to simulate real instrumentation

This project:

reduced barriers to microsurgery training
created a reproducible, inexpensive teaching model
received international recognition through a featured publication and a Best Abstract Award
reinforced my belief that innovation should be useful, not decorative

ISEM Best Abstract Award Certificate.jpg

3. Switzerland - Integrating 3D Planning into Real Clinical Cases

During my time in Switzerland, 3D printing became part of everyday clinical work. I routinely used:

Patient-specific cutting guides for hand & wrist corrective osteotomies - these guides allow precise bone re-alignment in post-traumatic malunions
Anatomical 3D models for reconstructive planning - helpful for complex trauma, congenital differences and multi-planar deformities
Custom orthoses for rehabilitation - lightweight, personalised supports that improve comfort and function

A defining moment was being invited to visit an in-house 3D printing unit at the University Hospital of Basel, where they were producing same-day 3D-printed PEEK cranial implants - essentially realising the concept I first imagined more than 10 years ago.

4. Singapore - Focused, Practical Use of 3D Printing Today

In Singapore, my use of 3D printing remains selective and purpose-driven - never for marketing, always for measurable benefit.

4.1 Corrective Osteotomies (Hand & Wrist)

For complex deformities after fractures, I use 3D printing to:

analyse deformity in three dimensions
plan corrective cuts virtually
produce patient-specific cutting guides
improve alignment accuracy during surgery

Benefits for patients include:

improved functional biomechanics
potentially shorter operative times
more predictable results
better long-term comfort

4.2 Microsurgery Training & Education

While not part of routine clinical care, my work with 3D-printed microvascular clamps continues to shape my approach to:

microsurgery precision
teaching methodology
global surgical accessibility

It reflects a consistent philosophy: technology should make good surgery easier to teach, not harder to access.

4.3 Personalised Upper Limb Casts & Orthoses

Through my collaboration with industry, I assess patients who may benefit from transitioning into 3D-printed:

casts
splints
orthoses

These offer advantages such as:

lighter weight
greater ventilation
better hygiene in humid climates
anatomical fit and improved comfort

Again - not a novelty, but a clinically sensible alternative for selected patients, especially in Singapore's weather.

5. My Approach to 3D Surgical Tools

The principles that guide my use of 3D printing are simple:

Anatomy comes first - technology must follow anatomy, not override it
Selective use - only applied when it clearly benefits diagnosis, precision or comfort
No gimmicks - I do not use “3D imaging of cosmetic surgery results” as these are but enhanced photographs, not surgical planning tools
Practical and safe - every printed guide or orthosis must make anatomical, biomechanical and clinical sense
Precision with purpose - 3D printing is applied only when it meaningfully improves clarity or outcome

6. Who This Is Suitable For

3D-assisted surgical planning or 3D-printed devices may help if you have:

complex hand/wrist deformities
a malunion requiring corrective osteotomy
a need for improved cast comfort
difficulty tolerating traditional splints
interest in personalised rehabilitation devices
a case where added precision improves predictability

Patients who are considering switching to a lighter, better-fitting 3D-printed splint may request an assessment. I can advise whether it is suitable and guide the process if indicated, through my existing 3D-printing partners.

7. A Simple Philosophy

"Use technology where it elevates precision and patient experience. Use anatomy everywhere."

For me, 3D printing is not a buzzword. It is another way to deliver thoughtful, personalised surgical care.