Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: General Orthopaedics
Abstract number: 25025
EVALUATION OF A NEW FIBRE OPTIC TECHNIQUE FOR RECORDING OF
INTRAMUSCULAR PRESSURE (IMP)
Jorma STYF, Andreas NILSSON, Qiuxia ZHANG
Department of Orthopaedics, University of Gothenburg, Sahlgrenska University
Hospital, Gothenburg (SWEDEN)
We have evaluated the performance of a new fibre optic catheter to measure IMP in
a human model of simulated leg compartment syndrome. IMP in the anterior tibial
muscle was measured simultaneously by a fibre optic technique (Samba Sensor) and
a needle-injection technique (Stryker) in 12 legs of 7 healthy subjects (age 23-37
years). Through a Venflon tube (1.3 mm) an optic transducertipped fibre (diameter
0.42 mm) was inserted 20 mm lateral to tibial tuberosity. The Stryker needle (1.3×64
mm) was inserted 10 mm lateral or medial to the optic fibre into the same depth,
verified by sonography. Abnormally elevated IMP was induced by venous obstruction
of a casted leg. IMP at baseline was 4.7±1.8/6.6±2.5 mmHg (p