A comparison of conventional 3.0-Tesla nonenhanced magnetic resonance imaging and arthroscopic findings of the anteroinferior capsulolabral complex in patients with traumatic anterior shoulder instability

© 2024 The Author(s).

Bibliographische Detailangaben
Veröffentlicht in:JSES international. - 2020. - 8(2024), 5 vom: 28. Sept., Seite 963-969
1. Verfasser: Tasaki, Atsushi (VerfasserIn)
Weitere Verfasser: Nozaki, Taiki, Tamaki, Tomoshige, Saito, Masayoshi, Mashimo, Shota, Kitamura, Nobuto
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:JSES international
Schlagworte:Journal Article Anterior shoulder instability Arthroscopy Bankart lesion Labrum MRI Traumatic shoulder injury
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245 1 2 |a A comparison of conventional 3.0-Tesla nonenhanced magnetic resonance imaging and arthroscopic findings of the anteroinferior capsulolabral complex in patients with traumatic anterior shoulder instability 
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520 |a Background: This study aimed to evaluate the association between specific, reproducible findings of an anteroinferior capsulolabral complex obtained using conventional 3.0-Tesla nonenhanced magnetic resonance imaging (MRI) and pathologic arthroscopic findings and to assess the confidence level of the findings 
520 |a Methods: Of 125 cases of traumatic anterior instability surgery from January 2017 to November 2019, 66 patients (52 men, 14 women; 23.5 ± 7.9 year old) who underwent conventional 3.0-Tesla MRI at our hospital were reviewed. The following anteroinferior capsulolabral complex features were observed on the T2-star axial image: size difference of the labrum (swelling, diminished), difference in marginal and internal signals (irregularity), and capsule edema image (capsular thickening). We also reviewed fraying, flattening, cracking, and capsular hypertrophy as pathologic arthroscopic findings of the capsulolabral complex. These findings allowed for the simultaneous description of the MRI and arthroscopic evaluations. Three orthopedic surgeons and one radiologist measured the interobserver reliability. We investigated the correlation between the MRI and arthroscopic findings 
520 |a Results: The interobserver reliability of MRI irregularities was low (κ = -0.16), whereas reliability was moderate (κ = 0.554-0.595) for swelling in 22 cases (33%), diminished in 34 cases (52%), and capsular thickness in 40 cases (59%). Labral detachment was found in 26 patients (39%) and fluid collection in 24 patients (36%). The agreement of MRI findings with arthroscopic findings was κ = 0.46 (95% confidence interval [CI]: 0.268-0.654) for swelling to fraying; κ = 0.42 (95% CI: 0.202-0.638) for swelling to capsular hypertrophy; and 0.46 (95% CI: 0.268-0.654) for flattening to diminished 
520 |a Conclusion: The swelling and diminished findings of the anteroinferior capsulolabral complex on conventional MRI were moderately related to pathologic arthroscopic findings in patients with traumatic anterior shoulder instability. These findings contribute to achieving an accurate clinical diagnosis 
650 4 |a Journal Article 
650 4 |a Anterior shoulder instability 
650 4 |a Arthroscopy 
650 4 |a Bankart lesion 
650 4 |a Labrum 
650 4 |a MRI 
650 4 |a Traumatic shoulder injury 
700 1 |a Nozaki, Taiki  |e verfasserin  |4 aut 
700 1 |a Tamaki, Tomoshige  |e verfasserin  |4 aut 
700 1 |a Saito, Masayoshi  |e verfasserin  |4 aut 
700 1 |a Mashimo, Shota  |e verfasserin  |4 aut 
700 1 |a Kitamura, Nobuto  |e verfasserin  |4 aut 
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