[abstract] MEASUREMENT AND MODIFICATION OF BONE MARROW CAVITY PRESSURE IN SHEEP.

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[abstract] MEASUREMENT AND MODIFICATION OF BONE MARROW CAVITY PRESSURE IN SHEEP.

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Title: [abstract] MEASUREMENT AND MODIFICATION OF BONE MARROW CAVITY PRESSURE IN SHEEP.
Author: Lanphier, EH; Lehner, CE; Kanikula-Ives, T; Anderson, LC; Lemos, SE
Abstract: The work of Ficat and Arlet* aroused our interest in intramedullary pressure (IMP) and its possible relevance in limb bends and dysbaric osteonecrosis. We devised a transcutaneous procedure that ensures accurate placement of a pressure tap in bone. Under both general and local anesthesia and with sterile technique, a short 13-ga sheath needle (which prevents tissue "wind-up" during drilling) is inserted to the bone at the desired location. Through the sheath needle, a l.l-mm Kirschner wire is drilled into the marrow cavity. With the K-wire in its lumen as a guide, a specially-beveled l5-ga drill needle is then bored into cortical bone. There, it becomes a stable, tightly-sealed connection through which IMP can be measured and manipulated. The K-wire is withdrawn, and the hub of the drill needle is connected to a pressure transducer through tubing filled with sterile saline or Ringer's solution. A pressure reading with pulsations indicates that IMP is being recorded. In a pilot study of IMP in long bones in sheep, we found no values above 40 mm Hg except in limbs showing signs of bends. There, a number of elevations (values as high as 104 mm Hg) were seen. In a later study, artificial elevation of IMP was maintained to determine whether this could induce osteonecrosis. *Ficat, RP, Arlet J. Ischemic necroses of bone, (Hungerford, DS, ed.) Baltimore: Williams & Wilkins, 1980. (Supported by the University of Wisconsin Sea Grant Institute)
Description: Abstract of the Undersea and Hyperbaric Medical Society, Inc. Joint Annual Scientific Meeting with the International Congress for Hyperbaric Medicine and the European Undersea Biomedical Society held 11-18 August 1990. Okura Hotel, Amsterdam, The Netherlands (http://www.uhms.org)
URI: http://archive.rubicon-foundation.org/7041
Date: 1990

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  • UHMS Meeting Abstracts
    This is a collection of the published abstracts from the Undersea and Hyperbaric Medical Society (UHMS) annual meetings.

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