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Table 4 Validation of the EPC classification in our study cohort. A maximum achievable score of 4 points corresponds to severe EPC and the minimum of one point indicates mild EPC. Scores of 2 to 3 points are considered intermediate

From: Incidence and clinical impact of vertebral endplate changes after limited lumbar microdiscectomy and implantation of a bone-anchored annular closure device

I II III IV
EPC grading in our cohort
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