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BMC Musculoskeletal Disorders
Published in: BMC Musculoskeletal Disorders 1/2007

Open Access 01-12-2007 | Research article

Near-infrared (NIR) spectroscopy. A new method for arthroscopic evaluation of low grade degenerated cartilage lesions. Results of a pilot study

Authors: Gunter Spahn, Holger Plettenberg, Enrico Kahl, Hans M Klinger, Thomas Mückley, Gunther O Hofmann

Published in: BMC Musculoskeletal Disorders | Issue 1/2007

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Abstract

Background

Arthroscopy is a highly sensitive method of evaluating high-grade cartilage lesions but the detection of low-grade lesions is often is unreliable. Objective measurements are required. A novel NIRS (near-infrared-spectroscopy) device for detection of low-grade cartilage defects was evaluated in a preliminary clinical study.

Methods

In 12 patients who had undergone arthroscopy, the cartilage lesions within the medial knee compartment were classified according to the ICRS protocol.
With a NIR spectrometer system and an optical probe, similar in design to a hook used for routine arthroscopy, the optical properties of cartilage were measured during arthroscopy.

Results

The mean ratio of 2 NIR absorption bands of intact cartilage 3.8 (range 2.3 to 8.7).was significantly lower than that of cartilage with grade 1 lesions (12.8, range 4.8 to 19.6) and grade 2 lesions (13.4, range 10.4 to 15.4).
No differences were observed between grade 1 and grade 2 lesions.

Conclusion

NIRS can be used to distinguish between ICRS grade 1 lesions and healthy cartilage during arthroscopic surgeries. The results of this clinical study demonstrate the potential of NIRS to objectify classical arthroscopic grading systems.
Appendix
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Metadata
Title
Near-infrared (NIR) spectroscopy. A new method for arthroscopic evaluation of low grade degenerated cartilage lesions. Results of a pilot study
Authors
Gunter Spahn
Holger Plettenberg
Enrico Kahl
Hans M Klinger
Thomas Mückley
Gunther O Hofmann
Publication date
01-12-2007
Publisher
BioMed Central
Published in
BMC Musculoskeletal Disorders / Issue 1/2007
Electronic ISSN: 1471-2474
DOI
https://doi.org/10.1186/1471-2474-8-47

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