this post was submitted on 27 Sep 2025
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Medicine

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In more complex bone problems like severe, irregular fractures or resections done as part of bone cancer treatment, the bone won’t heal on its own. The most common means of stabilizing the injured site and making recovery possible is metal-based grafts, implants usually made with titanium alloys.

The problem with such implants is that they are difficult and expensive to manufacture, and it’s very hard to make them patient-specific. β€œ3D printing has been highlighted as a novel approach to make such personalized implants, but this also requires substantial time and money,” said Jung Seung Lee, a biomedical engineering researcher at the Sungkyunkwan University in Korea. So his team wanted to find a way to make bone implants that would be faster and cheaper than a 3D printer.

What they came up with was a modified glue gun. The idea was to make the implant right at the injured site during surgery. The surgeon would point the bone-healing gun at the fractured bone, pull the trigger, and create a stabilizing scaffold by extruding a filament that would solidify in the fracture and hold the bone together. β€œIt was basically a tweaked commercially available hot glue gun. We modulated the temperature, and by adjusting the tip module, we could control the resolution of the extruded scaffold,” Lee said.

Coming up with the gun design, though, was the easy part. The hard part was figuring out the ammo.

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[–] GuyNoIRQ 4 points 1 week ago (1 children)

Cool, but teach me about that fuckin chonker of a glue gun.

[–] lemmyng@piefed.ca 8 points 1 week ago (1 children)

It requires some serious juice. Bone healing juice, to be precise.

[–] deadbeef79000@lemmy.nz 6 points 1 week ago

Came here for a bone hurting juice gag, was not disappointed.