The Journal of Bone and Joint Surgery (American). 2008;90:184-194.
© 2008 The Journal of Bone and Joint Surgery, Inc.
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Instability After Total Knee Arthroplasty

Sebastien Parratte, MD1 and Mark W. Pagnano, MD2

1 Department of Orthopaedic Surgery, Aix–Marseille University, Hospital Sainte-Marguerite, 270 Boulevard Sainte-Marguerite, 13009, Marseille, France
2 Department of Orthopedic Surgery, Mayo Clinic, 200 First Street S.W., Rochester, MN 55905. E-mail address: pagnano.mark@mayo.edu
An Instructional Course Lecture, American Academy of Orthopaedic Surgeons

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


   Introduction
 

Look for this and other related articles in Instructional Course Lectures, Volume 57, which will be published by the American Academy of Orthopaedic Surgeons in March 2008:
  • "Extensor Mechanism Complications After Total Knee Arthroplasty," by Jay Patel, MD, Michael Ries, MD, and Kevin Bozic, MD

 
Instability after total knee arthroplasty is a cause of failure and a reason for 10% to 22% of revisions1-5. Successful outcomes can be obtained in many of these cases, but without identifying the cause of instability, the surgeon risks repeating the mistakes that led to the instability after the initial total knee arthroplasty2,3,6. As Vince et al.6 stated, "the patient's report of instability is not a diagnosis", and particular care should be given to confirming the diagnosis and to understanding the causes.

The first step in confirming the diagnosis and understanding the causes is clinical and includes recording an accurate and complete history, . . . [Full Text of this Article]


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