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Evaluation of limb compartments with increased interstitial pressure. An improved noninvasive method for determining quantitative hardness.

Abstract：

:The purpose of this project was to study a noninvasive method of evaluating limbs at risk of compartment syndrome. Untreated limb compartment syndrome may lead to irreversible dysfunction, chronic pain and contracture. An improved means of obtaining quantitative hardness measurements is reported. The handheld noninvasive compartment syndrome evaluator (NCSE) device formulates a quantitative hardness curve of force verse depth of indentation by applying a 5.0 mm diameter indenter to a limb muscle compartment. Eighteen volunteers (9 men, 9 women) had elevated intracompartmental interstitial pressures by application of custom-made tourniquets. Comparison of interstitial pressure to quantitative hardness measurements in 71 compartments tested showed a statistically significant strong linear relationship with an average Pearson correlation coefficient of .84 (range .78-.9 P<.0001). In addition, for all compartments tested, the mean hardness value for the group with interstitial pressure greater than 50 mmHg (considered compartment syndrome) was close to 2x greater and was statistically different than the mean hardness for the group with interstitial pressure less than 30 mmHg (no compartment syndrome, t-test: P<.0001). This study utilizes a device that has improved upon previous quantitative hardness measurement techniques. In addition, by utilizing a tourniquet model to create elevated interstitial intracompartmental pressure in volunteers, data collection was easier and faster. In the future, quantitative hardness measurements may accurately predict interstitial intracompartmental pressure for most patients. This technique may greatly enhance the medical community's ability to diagnose compartment syndrome with a noninvasive means.

journal_name

J Biomech

journal_title

Journal of biomechanics

authors

Steinberg BD

doi

10.1016/j.jbiomech.2004.07.030

keywords:

subject

Has Abstract

pub_date

2005-08-01 00:00:00

pages

1629-35

issue

8

eissn

0021-9290

issn

1873-2380

pii

S0021-9290(04)00383-5

journal_volume

38

pub_type

临床试验,杂志文章

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