Rotating platform spinout in LCS knee arthroplasty

In knee arthroplasty, a lax flexion gap may cause flexion instability. Subsequently, the operated knee may subluxate or dislocate. We report on a case of recurrent subluxations with malrotation of the rotating platform (spinout) after primary LCS total knee arthroplasty. Potential causes for spinout...

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Bibliographic Details
Published in:Der Unfallchirurg 2007-04, Vol.110 (4), p.364-366
Main Authors: Lichtinger, T K, Pingsmann, A, Saxler, G
Format: Article
Language:ger
Subjects:
Aged
Humans
Joint Instability - diagnosis
Joint Instability - etiology
Joint Instability - prevention & control
Knee Dislocation - etiology
Knee Dislocation - prevention & control
Knee Prosthesis - adverse effects
Male
Prosthesis Failure
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Description
Summary:In knee arthroplasty, a lax flexion gap may cause flexion instability. Subsequently, the operated knee may subluxate or dislocate. We report on a case of recurrent subluxations with malrotation of the rotating platform (spinout) after primary LCS total knee arthroplasty. Potential causes for spinout, therapy procedures, and consequences for the primary surgical technique are discussed. In the LCS rotating platform knee arthroplasty, the flexion gap must not be laxer than the extension gap. In such an instance, we recommend a higher rotating platform and a more proximal distal transverse femoral osteotomy.
ISSN:0177-5537
DOI:10.1007/s00113-006-1184-4