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Knee Surgery, Sports Traumatology, Arthroscopy

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Open Access 01-06-2011 | Knee

Clinical outcome using a ligament referencing technique in CAS versus conventional technique

Authors: K. Lehnen, K. Giesinger, R. Warschkow, M. Porter, E. Koch, M. S. Kuster

Published in: Knee Surgery, Sports Traumatology, Arthroscopy | Issue 6/2011

Abstract

Purpose

Computer-assisted surgery (CAS) for total knee arthroplasty (TKA) has become increasingly common over the last decade. There are several reports including meta-analyses that show improved alignment, but the clinical results do not differ. Most of these studies have used a bone referencing technique to size and position the prosthesis. The question arises whether CAS has a more pronounced effect on strict ligamentous referencing TKAs.

Methods

We performed a prospective cohort study comparing clinical outcome of navigated TKA (43 patients) with that of conventional TKA (122 patients). Patients were assessed preoperatively, and 2 and 12 months postoperatively by an independent study nurse using validated patient-reported outcome tools as well as clinical examination.

Results

At 2 months, there was no difference between the two groups. However, after 12 months, CAS was associated with significantly less pain and stiffness, both at rest and during activities of daily living, as well as greater overall patient satisfaction.

Conclusion

The present study demonstrated that computer-navigated TKA significantly improves patient outcome scores such as WOMAC score (P = 0.002) and Knee Society score (P = 0.040) 1 year after surgery in using a ligament referencing technique. Furthermore, 91% were extremely or very satisfied in the CAS TKA group versus 70% after conventional TKA (P = 0.007).

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Title: Clinical outcome using a ligament referencing technique in CAS versus conventional technique
Authors: K. Lehnen
K. Giesinger
R. Warschkow
M. Porter
E. Koch
M. S. Kuster
Publication date: 01-06-2011
Publisher: Springer-Verlag
Published in: Knee Surgery, Sports Traumatology, Arthroscopy / Issue 6/2011
Print ISSN: 0942-2056
Electronic ISSN: 1433-7347
DOI: https://doi.org/10.1007/s00167-010-1264-4

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Clinical outcome using a ligament referencing technique in CAS versus conventional technique

Abstract

Purpose

Methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusion

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