Doctors Can Now Successfully 3D Print A Knee Joint

While this footage isn’t as exciting as I’d like it to be – I’d really prefer a big old gross close-up of a splayed knee joint – what it represents is pretty wonderful. Essentially, doctors at the Columbia University Medical Center have been able to print a knee meniscus using a degradable plastic scaffold and a protein growth system. The body then subsumes the printed object and turns the protein into a knee joint.

“At present, there’s little that orthopedists can do to regenerate a torn knee meniscus,” said study leader Jeremy Mao in a release. “Some small tears can be sewn back in place, but larger tears have to be surgically removed. While removal helps reduce pain and swelling, it leaves the knee without the natural shock absorber between the femur and tibia, which greatly increases the risk of arthritis.”

The scaffold isn’t just a plastic shell, however. It contains two human proteins, connective growth factor (CTGF) and transforming growth factor β3 (TGFβ3). The scaffold releases these factors at different times and “attracts existing stem cells from the body and induces them to form meniscal tissue.”

In sheep, the first test subjects, the meniscus regenerated in four to six weeks. The body degenerates the scaffold and whisks it away.

“We envision that personalized meniscus scaffolds, from initial MRI to 3D printing, could be completed within days,” said Dr. Mao. They will begin clinical trials once the team has raised enough cash to start printing and shipping the scaffolds to patients and their doctors.

Comments

Samsung Galaxy S5 Review and Giveaway

Few smartphones are as aggressively marketed as Samsung’s Galaxy S5. The S5 can no longer be considered brand-new — but it is Samsung’s flagship, at least for the next few months. With a gorgeous screen, a capable camera, a waterproof build, and a user-replaceable battery, the Galaxy S5 has a lot to offer… at least on paper. Let’s find out how good it really is. What Makes This Review Different There are about a million Galaxy S5 reviews out there. Why should you read this one? Two keys points make our review different: We bought our own device . Unlike many tech blogs, we don’t use a review unit Samsung gave us. We went out to the store and bought one, just like you would. This means everything you read here is truly impartial – we owe Samsung nothing. We used it for more than a month . Some sites rush to be the first to publish a review on a new device. That’s not how we do things. I used the Galaxy S5 as my main (and only) Android phone for nearly two months,...

Samsung Galaxy Note 3 N9000 Review and Giveaway

When it comes to massive phones, nothing is more iconic than the Samsung Galaxy Note. It has gained popularity not only due to its size, but its additional features such as a stylus and a larger battery make it a more useful phone. Samsung released the third generation of the Galaxy Note in October, updating the phablet with a larger screen and improved hardware. Read through our review, then join the giveaway to win the Samsung Galaxy Note 3 ! Competitors Of course, other Android competitors haven’t let the $640 Galaxy Note 3 be the only player in the phablet market. There are others such as the Sony Xperia Z Ultra , the Samsung Galaxy Mega , and the other more common phones that are reaching 5″ screens such as the Samsung Galaxy S4 , the HTC One , and the Nexus 5 . Unlike the normal-sized top contenders, the Galaxy Note 3 has a bigger screen and larger battery. It also offers specific features (surrounding the S Pen stylus) th...

Ex-Skypers Launch Virtual Whiteboard Deekit

Although seriously long in the tooth and being disrupted by a plethora of startups, for many years Skype has existed as an almost ubiquitous app in any remote team’s toolkit. So it seems apt that a new startup founded by a team of ex-Skype employees is set to tackle another aspect of online collaboration. Deekit, which exits private beta today, is a virtual and collaborative whiteboard to help remote teams work smarter. The Tallinn, Estonia-based startup is headed up by founder and CEO, Kaili Kleemeier, who was previously a Head of Operations at Skype. She and three colleagues quit the Internet calling giant in 2012 and spent a year researching ideas in the remote team space. They ended up focusing on creating a new virtual whiteboard, born out of Kleemeier’s experience collaborating with technical teams remotely, specifically helping Skype deal with incident management. “Working with remote teams has been a challenge in many ways – cultural differences, language differences, a...

Kiran Upadhyay

Search This Blog