Inter-rater agreement of rotator cuff tendon and muscle magnetic resonance imaging parameters evaluated preoperatively and during the first postoperative year following rotator cuff repair
| Autor: | Joseph P. Iannotti, Jinjin Ma, Andrew R. Baker, Peter B. Imrey, Eric T. Ricchetti, Joshua M. Polster, Carl S. Winalski, Vahid Entezari, Sambit Sahoo, Yuxuan Jin, Jason C. Ho, Kathleen A. Derwin |
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| Rok vydání: | 2021 |
| Předmět: |
030222 orthopedics
medicine.medical_specialty Supraspinatus muscle medicine.diagnostic_test business.industry Magnetic resonance imaging 030229 sport sciences General Medicine medicine.disease Muscle atrophy Tendon 03 medical and health sciences Inter-rater reliability 0302 clinical medicine medicine.anatomical_structure Atrophy Medicine Orthopedics and Sports Medicine Surgery Rotator cuff Radiology medicine.symptom business Research setting |
| Zdroj: | Journal of Shoulder and Elbow Surgery. 30:e741-e752 |
| ISSN: | 1058-2746 |
| Popis: | Background Magnetic resonance imaging (MRI) is standard of care for rotator cuff evaluation, with clinical interpretation usually limited to qualitative judgments. The reliability of MRI-based measurements and scoring systems has been evaluated only preoperatively or ≥6 months following rotator cuff repair, when repairs are in the later stages of healing. This study describes the MRI assessments and inter-rater agreement of various rotator cuff tendon and muscle parameters evaluated preoperatively and 4 times during the first postoperative year. Methods Two musculoskeletal radiologists independently assessed MRI scans of 42 patients preoperatively and 3, 12, 26, and 52 weeks after rotator cuff repair. Using standardized reading rules, readers assessed tendon integrity (5-point Sugaya classification), tear dimensions, muscle fat (5-point Goutallier classification) and atrophy (4-point Warner classification), muscle cross-sectional areas, and myotendinous junction distance. Raw exact agreement proportions, κ statistics, and correlation coefficients were used to quantify inter-rater agreement. Results Readers showed moderate to substantial above-chance agreement in scoring rotator cuff tendon integrity and supraspinatus muscle atrophy and good to excellent agreement on tear dimensions and muscle cross-sectional areas but only fair to moderate agreement for fatty infiltration and myotendinous junction distance. Only fatty infiltration grades evidenced observer bias. Inter-rater agreement did not appear time dependent. Conclusion By use of defined reading rules in a research setting, MRI evaluations of rotator cuff tendon integrity, tear dimensions, muscle atrophy, and cross-sectional areas have reasonable reliability at all time points in the first postoperative year. However, the presence of clinically significant disagreements, even in such favorable circumstances, indicates the need for improved imaging tools for precise rotator cuff evaluation. |
| Databáze: | OpenAIRE |
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