Detecting early stage osteoarthritis by optical coherence tomography?

Area of Science:

• Biomedical Imaging
• Orthopedics
• Biomaterials Science

Background:

• Osteoarthritis (OA) is a prevalent joint disease characterized by articular cartilage (AC) degeneration.
• Current treatments for OA are limited, and early diagnosis remains a challenge.
• Loss of AC surface or extracellular matrix (ECM) integrity is an early OA indicator, yet few imaging biomarkers exist.

Purpose of the Study:

• To critically evaluate optical coherence tomography (OCT) for assessing AC quality as an OA biomarker.
• To explore OCT's potential in detecting early signs of OA, including surface irregularities and ECM organization.
• To review OCT's utility in evaluating post-traumatic injuries relevant to OA development.

Main Methods:

• Narrative review of recent advancements in OCT technology for cartilage assessment.
• Focus on OCT's ability to visualize surface topography and subsurface ECM structure.
• Analysis of OCT's application in identifying early pathological changes in AC.

Main Results:

• OCT demonstrates potential for high-resolution imaging of AC surface and ECM.
• OCT can identify subtle changes indicative of early OA and post-traumatic cartilage damage.
• Emerging OCT techniques offer quantitative biomarkers for AC quality.

Conclusions:

• Optical coherence tomography is a promising light-based modality for early OA detection.
• OCT can serve as a valuable tool for assessing AC integrity and identifying OA biomarkers.
• Further development of OCT may improve early diagnosis and management of osteoarthritis.