Reliable Magnetic Resonance Imaging Based Grading System for Cervical Intervertebral Disc Degeneration

Area of Science:

• Orthopedics
• Radiology
• Spine Surgery

Background:

• Current Thompson grading system for lumbar discs lacks precision for cervical discs.
• Existing cervical disc grading systems have suboptimal clinical versatility and feasibility.
• Need for a precise, consistent, and meaningful system for cervical disc radiologic and morphologic data.

Purpose of the Study:

• To develop a simple, comprehensive grading system for cervical discs.
• To precisely, consistently, and meaningfully present radiologic and morphologic data.
• To improve clinical communication regarding cervical disc degeneration.

Main Methods:

• Observational study involving 46 human cervical discs analyzed via MRI.
• A novel grading system (Grades 0-3) was presented to 25 physicians (surgeons, fellows, residents, radiologists).
• Ease of use and interobserver reliability of the grading system were assessed.

Main Results:

• Excellent interobserver reliability (Intraclass Correlation Coefficient = 0.87) and intraobserver reliability (0.94).
• 95% of clinicians found the system clinically feasible.
• 85% of clinicians deemed the system useful in daily practice.

Conclusions:

• The developed cervical disc grading system is easy to use.
• The system demonstrates excellent reliability for precise and consistent clinician communication.
• The grading system enhances the meaningful presentation of radiologic and morphologic data.