Improving Bone Mineral Density Assessment in Total Shoulder Arthroplasty: Assessment of Phantom-Calibrated Hounsfield Units in the Glenoid and Proximal Humerus

Saagar Dhanjani; Clarence Cabatu; Kishan S. Shah; Tim Wang; Darryl D. DʼLima; Heinz R. Hoenecke

doi:10.1016/j.jseint.2026.101730

May 1, 2026JSES InternationalOpen Access

Improving Bone Mineral Density Assessment in Total Shoulder Arthroplasty: Assessment of Phantom-Calibrated Hounsfield Units in the Glenoid and Proximal Humerus

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Key Points

To compare correlations of standard and phantom-calibrated Hounsfield units with DEXA-derived bone mineral density in shoulder arthroplasty patients.
Retrospective analysis of 84 shoulders from 76 patients undergoing both CT and DEXA scans within one year.
Measurements of Hounsfield units from glenoid and proximal humerus were calibrated using a phantom to mg/cc.
Spearman's correlation and ROC curve analysis were performed to evaluate HU values against DEXA T-scores for osteoporosis classification.
Standard and phantom-calibrated HU significantly correlated with DEXA T-scores (p < 0.001), with standard HU showing stronger correlations.
Optimal HU thresholds identified: 185.38 for non-PC glenoid (sensitivity = 83.3%, specificity = 65.7%) and 30.90 for non-PC proximal humerus (sensitivity = 78.6%, specificity = 75%).
Phantom calibration did not provide significant advantage in discriminating osteoporosis at the proximal humerus.

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Implication

Retrospective analysis demonstrates correlations between phantom-calibrated Hounsfield units and DEXA-derived BMD for effective osteoporosis detection.

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Dhanjani et al. (2026) studied this question.

synapsesocial.com/papers/69fecf49b9154b0b8287643f https://doi.org/10.1016/j.jseint.2026.101730

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Improving Bone Mineral Density Assessment in Total Shoulder Arthroplasty: Assessment of Phantom-Calibrated Hounsfield Units in the Glenoid and Proximal Humerus

Key Points

No abstract yet

Implication

Discussion

Cite This Study

Improving Bone Mineral Density Assessment in Total Shoulder Arthroplasty: Assessment of Phantom-Calibrated Hounsfield Units in the Glenoid and Proximal Humerus

Key Points

No abstract yet

Implication

Discussion

Cite This Study

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