Clinical diagnosis of potentially treatable early articular cartilage degeneration using optical coherence tomography

A series of bench to operating room studies was conducted to determine whether it is feasible to use optical coherence tomography (OCT) clinically to diagnose potentially reversible early cartilage degeneration. A human cadaver study was performed to confirm the reproducibility of OCT imaging and gr...

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Bibliographic Details
Published in:Journal of Biomedical Optics 2007-09, Vol.12 (5), p.051703-051706
Main Authors: Chu, Constance R, Izzo, Nicholas J, Irrgang, James J, Ferretti, Mario, Studer, Rebecca K
Format: Article
Language:English
Subjects:
Arthroscopy - methods
Articular
articular cartilage
Benches
biomedical optics
Birefringence
Cartilage
Cartilage, Articular - pathology
Cartilage, Articular - surgery
clinical study
coherent optical systems
Degeneration
Feasibility
Human
Humans
Optical Coherence Tomography
osteoarthritis
Osteoarthritis - pathology
Osteoarthritis - surgery
Patient Selection
Preoperative Care - methods
Reproducibility of Results
Sensitivity and Specificity
tomography
Tomography, Optical Coherence - methods
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Summary:A series of bench to operating room studies was conducted to determine whether it is feasible to use optical coherence tomography (OCT) clinically to diagnose potentially reversible early cartilage degeneration. A human cadaver study was performed to confirm the reproducibility of OCT imaging and grading based on identification of changes to cartilage OCT form birefringence using a polarized OCT system approved for clinical use. Segregation of grossly normal appearing human articular cartilage into two groups based on the presence or absence of OCT form birefringence showed that cartilage without OCT form birefringence had reduced ability to increase proteoglycan synthetic activity in response to the anabolic growth factor IGF-1. The bench data further show that IGF-1 insensitivity in cartilage without OCT form birefringence was reversible. To show clinical feasibility, OCT was then used arthroscopically in 19 human subjects. Clinical results confirmed that differences to OCT form birefringence observed in study were detectable during arthroscopic surgery. More prevalent loss of cartilage OCT form birefringence was observed in cartilage of human subjects in groups more likely to have cartilage degeneration. This series of integrated bench to bedside studies demonstrates translational feasibility to use OCT for clinical studies on whether human cartilage degeneration can be diagnosed early enough for intervention that may delay or prevent the onset of osteoarthritis.
ISSN:1083-3668
1560-2281
DOI:10.1117/1.2789674