Bare Spot Location in Glenoid Cavity: Comparison Between Arthroscopy and Ct Scan

Ramos, Max Rogério Freitas; Hidalgo, Pedro Filgueiras; Fagundes, Diogo; San, Yonder Archanjo Ching

doi:10.1590/1413-785220202805232045

Cited by 3 publications

(1 citation statement)

References 14 publications

(32 reference statements)

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“…3). This measurement method is frequently used (also in our department) and has been investigated in several studies with different results [28,35,36]. To definitively determine the actual diagnostic value, this method was included in this study.…”

Section: Ap Distance Methodsmentioning

confidence: 99%

MRI Allows Accurate Measurement of Glenoid Bone Loss

Sgroi

Huzurudin

Ludwig

et al. 2022

Clin Orthop Relat Res

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Background Bony Bankart lesions larger than a certain size can lead to a high redislocation rate, despite treatment with Bankart repair. Detection and measurement of glenoid bone loss play key roles in selecting the appropriate surgical therapy in patients with shoulder instability. There is controversy about which diagnostic modalities, using different measurement methods, provide the best diagnostic validity. Questions/purposes (1) What are the diagnostic accuracies of true AP radiographs, West Point (WP) view radiographs, MRI, and CT to detect glenoid bone loss? (2) Are there differences in the measurements of glenoid bone loss on MRI and CT? (3) What are the intrarater and interrater reliabilities of CT and MRI to measure glenoid bone loss? Methods Between August 2012 and February 2017, we treated 80 patients for anterior shoulder instability. Of those, we considered patients with available preoperative true AP radiographs, WP radiographs, CT images, and MR images of the affected shoulder as potentially eligible.

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Section: Ap Distance Methodsmentioning

confidence: 99%

MRI Allows Accurate Measurement of Glenoid Bone Loss

Sgroi

Huzurudin

Ludwig

et al. 2022

Clin Orthop Relat Res

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Osseous variations associated with physiological thinning of the glenoid articular cartilage: an osteological study with CT, MRI and arthroscopic correlations

et al. 2023

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Objective To investigate the relationship between osseous variations of the glenoid fossa and thinning of the overlaying articular cartilage. Materials and methods In total, 360 dry scapulae, comprising adult, children and fetal specimens, were observed for potential presence of osseous variants inside the glenoid fossa. Subsequently, the appearance of the observed variants was evaluated using CT and MRI (each 300 scans), and in-time arthroscopic findings (20 procedures). New terminology of the observed variants was proposed by an expert panel formed by orthopaedic surgeons, anatomists and radiologists. Results Tubercle of Assaky was observed in 140 (46.7%) adult scapulae, and an innominate osseous depression was identified in 27 (9.0%) adult scapulae. Upon radiological imaging, the tubercle of Assaky was found in 128 (42.7%) CTs and 118 (39.3%) MRIs, while the depression was identified in 12 (4.0%) CTs and 14 (4.7%) MRIs. Articular cartilage above the osseous variations appeared relatively thinner and in several young individuals was found completely absent. Moreover, the tubercle of Assaky featured an increasing prevalence with aging, while the osseous depression develops in the second decade. Macroscopic articular cartilage thinning was identified in 11 (55.0%) arthroscopies. Consequently, four new terms were invented to describe the presented findings. Conclusion Physiological articular cartilage thinning occurs due to the presence of the intraglenoid tubercle or the glenoid fovea. In teenagers, the cartilage above the glenoid fovea may be naturally absent. Screening for these variations increases the diagnostic accuracy of glenoid defects. In addition, implementing the proposed terminological updates would optimize communication accuracy.

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