Letter | Published:

Failure of Synovial Fluid to Cushion

Nature volume 222, pages 9991000 (07 June 1969) | Download Citation

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Abstract

SYNOVIAL fluid is highly viscous and it has been thought this property aids in the protection of articular cartilage from compressive forces1–3. If synovial fluid does function as a cushion, it would probably be most effective at times of rapidly applied load that occur, for example, during running, jumping or kicking. To test this hypothesis in vitro we constructed an “impacting sleeve” (Fig. 1) which permitted the reproducible dropping of weights. The force transmitted through the specimens was registered by a force transducer, displayed on an oscilloscope, and photographed.

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Author information

Affiliations

  1. Orthopedic Research Laboratories, Massachusetts General Hospital, Boston, Massachusetts.

    • E. L. RADIN
  2. Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts.

    • I. L. PAUL

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DOI

https://doi.org/10.1038/222999a0

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