Renkawitz, Tobias and Haimerl, Martin and Dohmen, Lars and Woerner, Michael and Springorum, Hans-Robert and Sendtner, Ernst and Heers, Guido and Weber, Markus and Grifka, Joachim (2012) Development and evaluation of an image-free computer-assisted impingement detection technique for total hip arthroplasty. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE, 226 (H12). pp. 911-918. ISSN 0954-4119,
Full text not available from this repository. (Request a copy)Abstract
Periprosthetic or bony impingement in total hip arthroplasty (THA) has been correlated to dislocation, increased wear, reduced postoperative functionality with pain and/or decreased range of motion (ROM). We sought to study the accuracy and assess the reliability of measuring bony and periprosthetic impingement on a virtual bone model prior to the implantation of the acetabular cup with the help of image-free navigation technology in an experimental cadaver study. Impingement-free ROM measurements were recorded during minimally invasive, computer-assisted THA on 14 hips of 7 cadaveric donors. Preoperatively and postoperatively the donors were scanned using computed tomography (CT). Impingement-free ROM on three-dimensional CT-based models was then compared with corresponding, intraoperative navigation models. Bony/periprosthetic impingement can be detected with a mean accuracy limit of below 5 degrees for motion angles, which should be reached after THA for activities of daily living with the help of image-free navigation technology.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | REPLACEMENT; MOTION; DISLOCATION; RANGE; COMPONENTS; NAVIGATION; Computer-assisted orthopedic surgery; minimally invasive; navigation; total hip arthroplasty; combined anteversion; femur first; imageless |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Orthopädie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 22 May 2020 07:13 |
| Last Modified: | 22 May 2020 07:13 |
| URI: | https://pred.uni-regensburg.de/id/eprint/19405 |
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