The Journal of Bone and Joint Surgery (American). 2005;87:52-58.
doi:10.2106/JBJS.E.00447
© 2005 The Journal of Bone and Joint Surgery, Inc.
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What Should the Surgeon Aim for When Performing Computer-Assisted Total Knee Arthroplasty?

Geert Van Damme, MD, Koen Defoort, MD, Yves Ducoulombier, MD, Francis Van Glabbeek, MD, PHD, Johan Bellemans, MD, PHD and Jan Victor, MD

Corresponding author:
Geert Van Damme, MD,
Department of Orthopaedic Surgery, A.Z. Sint-Lucas, Sint-Lucaslaan 29, B-8310 Brugge, Belgium. E-mail address: vandamme.geert@skynet.be

The first 150 words of the full text of this article appear below.


   Introduction
 
Stability of the knee is a complex issue and involves ligaments that behave differently on the medial and lateral side. Correct positioning of the components and adequate soft-tissue balancing are critical steps in successful total knee arthroplasty1. A total knee prosthesis that is implanted "too tightly" may cause limited range of motion and compromise patient satisfaction. A total knee replacement that is implanted "too loosely" will be unstable2. Medial-lateral instability is the most common type of instability and may result from incompetent collateral ligaments, incomplete correction of a preoperative deformity, or incorrect bone cuts3. Separate studies have identified instability as a leading cause of early clinical failure of a primary total knee replacement, resulting in revision within three to five years4,5.

It is generally accepted that the surgeon should aim for "some" medial-lateral laxity, but no numerical data are currently available at present to guide . . . [Full Text of this Article]


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