CAD CAM reconstruction links computer aided design with computer aided manufacturing, so an agreed surgical plan can be turned into physical guides, plates and models. It carries a decision made on screen into the operating room as an object the surgeon can hold.
CAD CAM reconstruction describes a workflow rather than an operation. Computer aided design is used to plan the reconstruction on a model built from the patient’s scan, and computer aided manufacturing then produces the cutting guides, plates or models that translate that plan into surgery. The surgeon still decides what happens at each stage and adapts the plan in theatre when the anatomy requires it.
The gap between planning an operation and performing it has always been the difficult part. A surgeon may know exactly where a bone should be divided and how far a segment should move, yet transferring that decision to the patient on the table has traditionally relied on measurement, experience and eye. CAD CAM narrows that gap by making the plan into an object.
Design comes first. A 3D model built from a CT scan is used to plan cuts, movements and implant positions with an engineer, with the surgeon deciding what is clinically sound. Manufacturing then follows. Machines cut or build guides that seat on the bone in a single position and direct the saw along the planned line, plates contoured to the planned result, and solid models for reference during the procedure.
The workflow is most established in jaw reconstruction with a bone flap, in orthognathic surgery and in complex facial fracture repair. Its main costs are time and money, since imaging, design review and manufacture all have to happen before surgery can be booked. It is worth saying plainly that a well made guide does not decide anything. It records a decision the surgeon has already made, and the surgeon can still set it aside.
The workflow suits planned reconstruction where accurate geometry changes the result. It is not a general upgrade to be applied to every operation.
A fine cut CT scan of the relevant area is taken, with a scan of the donor bone as well when a flap is planned. Dental scans are added when the bite has to be reproduced.
Surgeon and engineer plan the cuts, the segment positions and the implant on a 3D model. Alternatives are compared, and the surgeon approves the version that is clinically sound.
Cutting guides, contoured plates and reference models are machined or printed from the approved design, then finished, cleaned and sterilised ready for theatre.
Guides are seated on the bone and checked for a firm, unambiguous fit. Cuts are made through the guide slots, and segments are positioned and fixed with the prepared plate.
Position and bite are checked before closure. If the guides do not fit the anatomy as expected, the surgeon proceeds using conventional technique instead.
Imaging, design review and manufacture take place over a period of weeks. Surgery is scheduled once the guides and plates have been made and sterilised.
The guides and models are checked against the patient in theatre. Recovery afterwards follows the operation performed rather than the planning workflow.
Wound care, diet limits and activity restrictions are those of the reconstruction itself, such as a soft diet after jaw surgery.
A follow up scan is sometimes compared with the original design to see how closely the plan and the result agree, which guides any later refinement.
Bone position after a guided reconstruction usually comes close to the planned design, and the operation tends to run in a more orderly way. The final result still depends on healing, soft tissue and swelling, which no design accounts for. Guides occasionally do not seat as expected and are abandoned in favour of conventional technique. Seen honestly, the workflow improves preparation and consistency rather than changing what surgery can achieve.
The workflow adds no incision of its own, so its drawbacks are practical. They deserve to be stated as plainly as the benefits.
Aftercare belongs to the reconstruction the workflow supported, which in jaw surgery usually means caring for a donor leg or hip as well as the face.
Software plans and machines manufacture. Every cut, every decision in theatre and every departure from the plan remains with the surgeon.
Guides help reproduce a plan. They can be misplaced, can fail to seat, and can be built from flawed imaging, which is why the surgeon checks them.
It helps where geometry is complex and time allows. In simple or urgent cases the delay and expense outweigh the benefit.
It simply means the anatomy differs from the model. The surgeon then proceeds with conventional technique, which remains a sound way to operate.
Elegance Clinic in Surat uses this workflow selectively, where the geometry of a reconstruction genuinely benefits from it. Dr. Ashutosh Shah explains the lead times and the costs before treatment is scheduled so families can plan.
Technique pages do not carry their own price, because the cost depends on the treatment the technique is used within. Design sessions, guides, custom plates and models are quoted inside the estimate for the reconstruction they support. Please see the relevant treatment page for its band, and ask for a written estimate at consultation.
These are the questions that come up most often in consultation. If yours is not here, send it on WhatsApp and the team will reply, usually the same day.
Ask your question →It varies with how many guides and plates are made and how complex the design is. The amount is included in the written estimate for the reconstruction. Ask at consultation whether the benefit justifies the extra cost in your case.
It involves no procedure of its own beyond the imaging required, which carries some radiation exposure. Guides and plates are manufactured to medical standards and sterilised before use. The surgical risks are those of the operation itself.
Design review and manufacture usually add several weeks. For scheduled reconstruction this is manageable, and treatment is planned around it. Urgent surgery proceeds without the workflow, since delay would not be in your interest.
Bone position generally comes close to what was planned. Appearance and function also depend on healing, swelling and soft tissue, so small differences between design and outcome are normal rather than a sign of a problem.
The surgeon sets it aside and proceeds using conventional technique, which is a well established way to operate. A backup plan is prepared in advance for exactly this reason, so the operation continues safely.
It can reduce time spent measuring and bending plates, though this varies between cases. The wider benefit is a more orderly operation with the intended result agreed beforehand, rather than a shorter time under anaesthetic.
Bring existing CT images on disc, dental records if the jaw is involved, previous operation notes and a list of medicines. Recent, good quality imaging avoids repeat scans and gives the design team an accurate basis.
Seeing patients from across the city and beyond: read about the practice on the plastic surgeon in Surat page, or check what a written estimate covers on the costs and insurance page.
