KLS Martin Scales Personalized Surgery with Industrial 3D Printing
When surgeons reconstruct a patient’s jaw after trauma, tumor resection, or severe bone loss, every millimeter matters - both for function and for the patient’s quality of life. KLS Martin, a globally established medical device manufacturer headquartered in Tuttlingen, Germany, has built its IPS Implants® product line around that principle: use the patient’s own CT data to virtually plan the surgery, then manufacture a perfectly fitting titanium implant along with the polyamide drilling and marking guides that transfer that plan into the operating room.
This workflow is not new or experimental: KLS Martin has been running EOS-based production of personalized surgical guides for more than a decade, continuously expanding capacity and operational output as clinical adoption has grown.
The titanium implant is what stays in the body. But the guides are what makes the plan executable, and that’s where additive manufacturing changes the economics of personalized care. For its surgical guides, KLS Martin relies on EOS selective laser sintering (SLS) and PA 2200 material. The result is a workflow where clinical precision and economical, single-use production stop being a trade-off: Each guide is built to one patient’s anatomy, prints in minutes, and transfers the virtual surgical plan to the OR with the dimensional fidelity the implant demands.
Challenge
Personalized jaw reconstruction demands a production workflow unlike anything in standard medical device manufacturing. Each case is a batch of one: a unique implant geometry derived from an individual patient’s anatomy, paired with a matched set of drilling and marking guides that ensure the surgeon can execute the virtual plan with sub-millimeter fidelity.
The guides carry a deceptively demanding specification. Used intraoperatively to position resection lines, pre-drill holes, and project the donor bone graft onto the recipient site, they must be lightweight, sterilizable, and dimensionally stable, yet economical enough to be discarded after a single use.
And because the guide is produced separately from the titanium implant it serves, it has to hold its geometry tightly enough that the two parts agree in the OR. Variability between the plan, the guide, and the implant is exactly what a personalized workflow cannot tolerate.
That combination - clinical-grade precision, biocompatibility, sterilizability, design freedom that adapts to each injury and patient, and per-unit cost low enough for single use - is difficult to satisfy with conventional manufacturing. It’s the kind of requirement that makes personalized guides either clinically excellent or economically viable, rarely both. KLS Martin needed a guide production process that delivered all of it at once - reproducibly, at industrial scale, and in a way that could sustain a continuously growing caseload over many years of clinical use.
“In personalized manufacturing, you cannot afford variability between an implant and the guide that belongs to it. The guide is what carries the plan into the operating room, so it has to be exactly right.”
Michael Maeder, Head of Production Finishing Individual Metal Implants at KLS Martin
Solution
KLS Martin produces its personalized surgical guides on EOS polymer systems using EOS PA 2200 - a biocompatible, agent-free nylon powder with an established history in medical applications. This production environment has been in continuous operation for over a decade, evolving into a highly standardized, production-grade setup capable of reliably supporting large and continuously increasing volumes of personalized guides.
Because the process builds in powder without dedicated support structures, design freedom is effectively unconstrained: The guide can follow whatever resection lines, drill trajectories, and contact surfaces the case requires, with no penalty for complexity. That design freedom translates directly into operating room value, since a guide shaped precisely to one patient’s anatomy seats predictably and positions the surgeon’s instruments where the virtual plan intends.
However, the economics are equally important. A single guide set prints in approximately 24 minutes, which keeps fast turnaround achievable, even as caseloads scale. It also makes single-use, sterilizable guides practical. The guides can integrate steel sleeves for precise drill guidance, and are produced to the dimensional consistency needed to match the corresponding titanium implant.
The wider workflow is designed for planning reliability and speed. From the moment a surgeon uploads patient CTA data through the IPS Gate® platform, the IPS® engineering team and the surgeon collaborate via integrated chat and web meetings - typically over six to nine working days - to define resection boundaries, optimize bone graft positioning, and specify screw placement. Once the design is approved, the guides go into production, and the plan moves from screen to OR.
Results
By building its surgical guides on EOS SLS machines KLS Martin has made personalized guides that are simultaneously clinically precise and economically producible - the trade-off that usually limits how widely such guides can be deployed. The long-term performance of the solution underscores its maturity: over more than ten years of continuous operation, KLS Martin has scaled its personalized guide production into a sustained, industrialized workflow, reliably supporting a high and steadily growing surgical caseload while maintaining consistent quality and process stability.
From a purely clinical perspective, the payoff shows up in the operating room. Guides printed in PA 2200, with integrated steel sleeves and high positional accuracy, transfer the virtual plan faithfully enough to support reduced complication rates, improved aesthetic and functional results, shorter operating times, and faster patient rehabilitation. The implant arrives with an optimal dimensional fit, and the matched guide ensures the surgeon can place it as planned.
From a production perspective, the benefits compound. With guide sets printing in roughly 24 minutes, KLS Martin can serve a growing surgical caseload without scaling manual labor or infrastructure in proportion. SLS design freedom means each new case geometry is a parameter of the same validated process rather than a new manufacturing problem. And EOS PA 2200’s biocompatibility and sterilizability make single-use guides routine, keeping per-case economics in check while holding clinical quality constant.
The mechanical and dimensional performance is what ties it together: A guide is only useful if it behaves predictably under handling and in the surgical field, and holds the tolerance that lets a separately produced titanium implant fit as intended.
“Printing a full guide set in minutes sounds like a convenience, but in daily operations, it’s what lets us take on more cases without adding headcount. Every guide comes out dimensionally accurate.”
Michael Maeder, Head of Production Finishing Individual Metal Implants at KLS Martin
Results at a glance:
- High dimensional accuracy ensures precise fit with the corresponding implant
- Improves clinical outcomes through accurate plan-to-OR transfer
- Proven in continuous production for 10+ years with stable, scalable operations
- Supports a growing surgical caseload without proportional increase in resources
- Enables sterilizable, single-use guides using biocompatible PA 2200
- Design freedom allows fully customized geometries with no complexity penalty
Short Company Profile
The KLS Martin Group is an international company group for innovative medical technology in almost all surgical areas. With the philosophy „Surgical innovation is our passion", they develop and market solutions such as implant systems, electrosurgery units, surgical laser systems, operating lights, surgical instruments, trays and storage. Through its IPS® product line, the company delivers personalized implants, surgical guides, and anatomical models - combining virtual surgical planning with additive manufacturing to enable precision reconstruction of complex bony defects.
Further Information: https://www.klsmartin.com