Regional apparent density correlations within the proximal humerus
| Autor: | James A. Johnson, George S. Athwal, Kenneth J. Faber, G. Daniel G. Langohr, Jacob M. Reeves, Tom Vanasse, Christopher P. Roche |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Shoulder
Bone quality Apparent density Proximal humerus Thumb test Bone density medicine.medical_treatment 030209 endocrinology & metabolism Density correlation Apparent bone density Diseases of the musculoskeletal system Metaphysis Trauma 03 medical and health sciences Quadrant (abdomen) 0302 clinical medicine medicine Orthopedics and Sports Medicine Orthopedic surgery 030222 orthopedics business.industry Anatomy Arthroplasty medicine.anatomical_structure RC925-935 Shoulder arthorplasty Surgery business Cancellous bone RD701-811 |
| Zdroj: | JSES International, Vol 5, Iss 3, Pp 525-531 (2021) JSES International |
| ISSN: | 2666-6383 |
| DOI: | 10.1016/j.jseint.2020.12.001 |
| Popis: | Background Bone quality influences humeral implant selection for shoulder arthroplasty. However, little is known about how well bone near the humeral resection represents more distal cancellous bone. This investigation aimed to quantify the correlations between the apparent density of sites near the humeral head resection plane and cancellous sites throughout the metaphysis. Methods Using computed tomography data from 98 subjects, apparent bone density was quantified in 65 regions throughout the proximal humerus. Pearson's correlation coefficient was determined comparing the density between samples from the humeral resection and all supporting regions beneath the resection. Mean correlation coefficients were compared for (i) each sample region with all support regions, (ii) pooling all sample regions within a slice, and (iii) considering sample regions correlated with only the support regions in the same anatomic section. Results Stronger correlations existed for bone sampled beneath the resection (0.33 ± 0.10≤ r ≤ 0.88 ± 0.10), instead of from the resected humeral head (0.22 ± 0.10≤ r ≤ 0.66 ± 0.14). None of sample region correlated strongly with all support regions; however, strong correlations existed when sample and support regions both came from the same anatomic section. Discussion Assessments of cancellous bone quality in the proximal humerus should be made beneath the humeral resection not in the resected humeral head; and each anatomic quadrant should be assessed independently. |
| Databáze: | OpenAIRE |
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