Abstract
Minimally invasive intramedullary nail insertion or plate osteosynthesis has shown good results for the treatment of long bone fractures. However, directly seeing the fracture site is impossible; surgeons can only confirm bone fragments through a fluoroscopic imaging system. The narrow field of view of the equipment causes malalignment of the fracture reduction, and radiation exposure to medical staff is inevitable. This paper suggests two methods to solve these problems: surgical navigation using 3D models reconstructed from computed tomography (CT) images to show the real positions of bone fragments and estimating the rotational angle of proximal bone fragments from 2D fluoroscopic images. The suggested methods were implemented using open-source code or software and evaluated using a model bone. The registration error was about 2 mm with surgical navigation, and the rotation estimation software could discern differences of 2.5° within a range of 15° through a comparison with the image of a normal bone.
| Original language | English |
|---|---|
| Pages (from-to) | 497-503 |
| Number of pages | 7 |
| Journal | Transactions of the Korean Society of Mechanical Engineers, A |
| Volume | 38 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2014 |
Keywords
- Fracture-reduction
- Open source
- Surgical navigation