Luering, C. and Huefner, T. and Kendoff, D. and Perlick, L. and Baethis, H. and Grifka, Joachim and Krettek, C. (2005) Influence of the surgical approach in total knee arthroplasty on ligament tension. A navigation-controlled cadaver study. UNFALLCHIRURG, 108 (4). pp. 274-278. ISSN 0177-5537, 1433-044X
Full text not available from this repository. (Request a copy)Abstract
Correct postoperative leg alignment and stability of the total knee prosthesis over the full range of movement is one critical factor for successful TKA. The anatomic approach is still the subject of controversy. The aim of our study was to elucidate the influence of the surgical approach on the ligament balancing and the anterioposterior limb axis. On five cadaver knees we studied the influence of the subvastus, midvastus, medial parapatellar, rectus snip, and tuberosity osteotomy approaches on the anterioposterior leg axis in extension and the rotation of the femoral component in flexion. Measurements were performed and documented by CT-free Ci-Navigation-System. Ligament tension was measured with a tensor device. We found that the subvastus approach leads to less widening of the medial compartment than all other approaches in extension. In 90 degrees flexion we found a similar influence. The consecutive release from subvastus to midvastus to medial parapatellar approach leads to a further opening of 0.5-1 degrees valgus in extension as well as in flexion. An everted patella amplifies this influence. The surgeon has to be aware of the impact on the ligament situation in regard to the anatomic approach when ligament balancing and soft tissue releases are carried out. Patella eversion should be avoided when managing soft tissues.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | REPLACEMENT; SUBVASTUS; MIDVASTUS; RELEASE; ALIGNMENT; PATELLA; total knee arthroplasty; ligament tension; navigation; anatomic approach |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Orthopädie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 18 May 2021 09:23 |
| Last Modified: | 18 May 2021 09:23 |
| URI: | https://pred.uni-regensburg.de/id/eprint/36350 |
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