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The Journal of Bone and Joint Surgery 80:99-103 (1998)
© 1998 The Journal of Bone and Joint Surgery, Inc.

Case Report

Arthroscopic Treatment for Lipoma Arborescens of the Knee. A Case Report*

JAMES B. SOLA, M.D.{dagger} and RICK W. WRIGHT, M.D.{dagger}, ST. LOUIS, MISSOURI

Investigation performed at the Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis


   Introduction
 
Lipoma arborescens is a rare intra-articular condition that can result in painless swelling of a joint10,17. It almost always affects the knee, although there have been case reports of involvement of the wrist, hip, and ankle10,12,15,17. The lesion is a benign hyperplastic process that has been defined as a diffuse collection of fat replacing the subsynovial layer and resulting in the formation of villous projections13,16. We report the case of a patient who was managed with an arthroscopic procedure because of lipoma arborescens involving both knees. To our knowledge, this is the first report of arthroscopic treatment of this condition.


   Case Report
 
A fifty-eight-year-old man was seen because of a three-month history of recurrent painless effusion in the left knee. Aspiration of the knee and injection of cortisone had been performed at another institution, but the effusion had recurred after one to two weeks. The effusion was not relieved . . . [Full Text of this Article]


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