Perlick, Lars and Baethis, Holger and Tingart, Markus and Perlick, Carsten and Grifka, Joachim (2004) Navigation in total-knee arthroplasty - CT-based implantation compared with the conventional technique. ACTA ORTHOPAEDICA SCANDINAVICA, 75 (4). pp. 464-470. ISSN 0001-6470,
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Background Exact axial limb alignment in total-knee artbroplasty (TKA) is important for a successful outcome. We evaluated the efficiency of computer-assisted implantation in TKA and compared it with the classical surgeon-controlled technique. Patients and methods We implanted 100 TKA using either the computer-assisted technique (50) or the conventional approach (50). There were no significant differences between the groups regarding the preoperative leg deformity. Accuracy of implantation was determined in postoperative long-leg coronal and lateral radiographs. Results A postoperative leg axis between 3degrees varus and 3degrees valgus was achieved in 46 patients in the group with computer-assisted implantation and 36 patients in the control group (p = 0.01). A significant difference was also seen for the femoral component alignment in frontal plane. No complications influencing the clinical outcome were observed. Interpretation A CT-based navigation system improves the accuracy of TKA, but higher costs and time-consuming planning will mean that its usage is limited to special cases. Additional tools such as ligament balancing, which are presently only available with the CT-free software module, require to be added to the CT-based system.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | REPLACEMENT; ALIGNMENT; INTRAMEDULLARY; EXPERIENCE; |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Orthopädie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 Jul 2021 04:30 |
| Last Modified: | 05 Jul 2021 04:30 |
| URI: | https://pred.uni-regensburg.de/id/eprint/37353 |
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