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- W4254118652 abstract "Abstract Background Neck pain, sensory disturbance and motor dysfunction in most patients suffered cervical spondylotic myelopathy (CSM). For CSM surgery, it is necessary to evaluate preoperative inter-vertebral disc degeneration (IDD) which determines whether to adopt fusion strategy, and postoperative IDD which is one of the main reasons for reoperation. Modified Pfirrmann grading system is commonly used to evaluate IDD. The objective of this study is to evaluate its reliability and reproducibility on cervical IDD in CSM patients, and to explore its clinical application value. Methods/Design: All 165 patients with CSM were enrolled. 6 physicians (3 spine surgeons and 3 radiologists) who have certain clinical experience were selected. They graded cervical inter-vertebral disc according to modified Pfirrmann grading system, we used intra-class correlation coefficient (ICC) and weighted kappa (wκ) to assess the inter- and intra-observer agreement. After 12 weeks, we repeated the analysis. Results The inter-observer reliability of modified Pfirrmann grading system was excellent with ICC value of 0.76 and near perfect with wκ value of 0.82. The intra-observer reproducibility of modified Pfirrmann grading system was excellent with ICC values ranging from 0.80–0.91, and near perfect with wκ values ranging from 0.83–0.92. Conclusion Modified Pfirrmann grading system has excellent inter-observer reliability and intra-observer reproducibility on cervical IDD in CSM. In addition, it indicates a good appliance among spine surgeons and radiologists, clinical and radiological studies applying it should be deemed accurate. Thus, modified Pfirrmann grading system can be widely used as an appropriate instrument in clinical care." @default.
- W4254118652 created "2022-05-12" @default.
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- W4254118652 date "2020-11-18" @default.
- W4254118652 modified "2023-09-27" @default.
- W4254118652 title "An Independent Agreement Study of Modified Pfirrmann Grading System for Cervical Inter-vertebral Disc Degeneration in Cervical Spondylotic Myelopathy" @default.
- W4254118652 doi "https://doi.org/10.21203/rs.3.rs-107456/v1" @default.
- W4254118652 hasPublicationYear "2020" @default.
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