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Journal of Bone and Joint Surgery - British Volume, Vol 72-B, Issue 3, 453-456
Copyright © 1990 by British Editorial Society of Bone and Joint Surgery

Articles

Congenital snapping knee. Habitual anterior subluxation of the tibia in extension

BD Ferris and AM Jackson

University College Hospital, London, England.

We describe a rare form of congenital snapping knee. In six knees in four children, the tibia subluxed anteriorly on the femur when the knee was extended and reduced spontaneously on flexion. The abnormal movements were seen and felt as sudden snaps or clunks at about 30 degrees of flexion. All six knees showed similar dysplastic features, although the patients had different clinical syndromes. The mechanism of the subluxation and its management are discussed.




(c) British Editorial Society of Bone and Joint Surgery All Rights Reserved
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Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General