Easy identification of mechanical axis during total knee arthroplasty.

Yonsei Med J

Department of Orthopaedic Surgery, National Health Insurance Service Ilsan Hospital, 100 Ilsan-ro, Ilsandong-gu, Goyang 410-719, Korea.

Published: November 2013

Purpose: We devised an intraoperatively identifiable mechanical axis (IIMA) as a reference of alignment in total knee arthroplasty (TKA).

Materials And Methods: Between February 2010 and January 2011, primary TKAs were consecutively performed on 672 patients (1007 knees) using an IIMA as a reference in the coronal plane.

Results: The alignment of the lower extremity improved from a mean of 11.4±6.7° (-10.3-34.4°) of varus preop. to 0.7±3.5° (-5.2-8.6°) immediately after surgery. Mean alignment of the femoral component in the coronal plane was 89.3±2.3° (83.4-97.2°) postop. and mean alignment of the tibial component was 90.4±2.2° (85.1-94.2°) postop.

Conclusion: This study showed that IIMA could be of considerable value as a new guider of alignment that is easily accessible and highly effective during total knee arthroplasty.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3809866PMC
http://dx.doi.org/10.3349/ymj.2013.54.6.1505DOI Listing

Publication Analysis

Top Keywords

total knee
12
knee arthroplasty
12
mechanical axis
8
iima reference
8
alignment
5
easy identification
4
identification mechanical
4
axis total
4
arthroplasty purpose
4
purpose devised
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!