Format

Send to

Choose Destination
See comment in PubMed Commons below
Yonsei Med J. 2013 Nov;54(6):1505-10. doi: 10.3349/ymj.2013.54.6.1505.

Easy identification of mechanical axis during total knee arthroplasty.

Author information

1
Department of Orthopaedic Surgery, National Health Insurance Service Ilsan Hospital, 100 Ilsan-ro, Ilsandong-gu, Goyang 410-719, Korea. orthomania@gmail.com.

Abstract

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.

KEYWORDS:

Lower limb neutral mechanical axis; extramedullary reference; inter-femoral head center distance; total knee arthroplasty

PMID:
24142658
PMCID:
PMC3809866
DOI:
10.3349/ymj.2013.54.6.1505
[Indexed for MEDLINE]
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Yonsei University College of Medicine Icon for PubMed Central
    Loading ...
    Support Center