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J Orthop Trauma. 2015 Jul;29(7):316-21. doi: 10.1097/BOT.0000000000000317.

Interobserver Variability in the Measurement of Lower Leg Compartment Pressures.

Author information

1
*Orthopaedic Trauma Services, Mission Hospital, Asheville, NC; †Department of Orthopaedic Surgery and Sports Medicine, Harborview Medical Center, Seattle, WA; and ‡Rothman Institute at Thomas Jefferson University, Philadelphia, PA.

Abstract

OBJECTIVES:

To determine whether interobserver technical variations and errors in the measurement of compartment pressures may affect measurement accuracy.

METHODS:

Four above-knee cadaveric specimens were used to create a consistent model of lower leg compartment syndrome. Thirty-eight physicians examined the limbs and measured 4 compartment pressures using the Intra-Compartmental Pressure Monitor (Stryker Orthopaedics). They were observed for correct assembly and use of the monitor. Measurements obtained were compared with known pressures.

RESULTS:

Of the total number of compartment measurements, 31% were made using the correct technique, 39% were made with lesser errors in technique, and 30% were made with catastrophic errors. Only 60% of measurements made with the correct technique were within 5 mm Hg of the standard pressure. Accuracy dropped to 42% for measurements taken with small errors in technique and 22% when a catastrophic error was committed.

CONCLUSIONS:

Variations in use of a commercially available pressure monitor exist, and errors are common. Proper use improved accuracy, but even with proper technique, 40% of the measurements were >5 mm Hg from the actual pressure. Based on our data, measurement accuracy with this device should be questioned and viewed within a range. Regular review and education of technique is strongly recommended.

PMID:
25756911
DOI:
10.1097/BOT.0000000000000317
[Indexed for MEDLINE]

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