Anand classification
Thoracic disc disease
Grade 1
Predominant thoracic central (axial) pain
Grade 2
Predominant thoracic radicular pain
Grade 3A
Significant axial and thoracic radicular pain
Grade 3B
Significant axial and lower leg pain with or without thoracic radicular pain
Grade 4
Myelopathy but not significant motor weakness
Grade 5
Paretic or paralytic (significant motor weakness) 1).
1)
Anand N, Regan JJ. Video-assisted thoracoscopic surgery for thoracic disc disease: Classification and outcome study of 100 consecutive cases with a 2-year minimum follow-up period. Spine. 2002 Apr. 15;27(8):871-879.