Select your localized edition:

Close ×

More Ways to Connect

Discover one of our 28 local entrepreneurial communities »

Be the first to know as we launch in new countries and markets around the globe.

Interested in bringing MIT Technology Review to your local market?

MIT Technology ReviewMIT Technology Review - logo


Unsupported browser: Your browser does not meet modern web standards. See how it scores »

{ action.text }

Precise localization: In addition to creating knee implants, ConforMIS uses CT data to create personalized, single-use guides that help surgeons determine the exact placement of the implants.

Freiberg says that the ability to model what a knee replacement would look like before it’s performed could have advantages, although he notes that many surgeons prefer to actually see and measure the patient’s anatomy before making decisions. He says that replacing a knee properly is a geometrically complex task that requires a great deal of precision, and companies have been looking for ways to eliminate guesswork with technology.

Along with the implants, ConforMIS also creates customized instruments, called iJig, which assist surgeons in placing the implant. Because the knee joint must be precisely aligned to function properly, surgeons use cutting and placement guides to ensure that any cuts to the bone are made at the correct angles so that the implant is placed in proper alignment. ConforMIS uses the imaging data from the patient to create disposable instruments that are calibrated to the patient’s specific implant and anatomy. Lang says that the instrumentation will enable surgeons to perform the operation more quickly and easily, and it will also reduce time spent sterilizing reusable equipment.

ConforMIS announced today that it has raised $50 million in funding from investors worldwide in its latest round of fund-raising. Currently, the company has released three products for partial knee replacements, along with instrumentation, and it plans to make an implant available for a total knee replacement in 2010. Lang says that it takes about six weeks to create the implant, from imaging to shipping, and ConforMIS hopes to reduce that time to four weeks.

One concern about such a customized approach is the cost. As volume grows, the company hopes to provide its customized products at the same price as that of a standard implant.

0 comments about this story. Start the discussion »

Credits: ConforMIS
Video by ConforMIS

Tagged: Biomedicine, implantable device, implants, rapid prototyping

Reprints and Permissions | Send feedback to the editor

From the Archives


Introducing MIT Technology Review Insider.

Already a Magazine subscriber?

You're automatically an Insider. It's easy to activate or upgrade your account.

Activate Your Account

Become an Insider

It's the new way to subscribe. Get even more of the tech news, research, and discoveries you crave.

Sign Up

Learn More

Find out why MIT Technology Review Insider is for you and explore your options.

Show Me