case_images: PMC9045964_01
case_images: Radiographs showing bilateral proximal humeral fractures: (a) right shoulder and (b) left shoulder.
case_images: CRIOR2022-2162331.001.jpg
case_images: PMC9045964_01_CRIOR2022-2162331.001.jpg
case_images: fig1
case_images: Radiographs showed bilaterally displaced proximal humerus fractures with dislocation of the right humeral head (Figures 1(a) and 1(b)).
case_images: Computed tomography images of the right shoulder showing the four-part fracture with dislocation of the proximal humerus: (a) axial image, (b) sagittal image, (c) frontal view in a three-dimensional (3D) image, and (d) posterior view in a 3D image.
case_images: CRIOR2022-2162331.002.jpg
case_images: PMC9045964_01_CRIOR2022-2162331.002.jpg
case_images: fig2
case_images: Computed tomography revealed a fracture dislocation with displaced comminuted fracture of the greater and lesser tuberosities in the right shoulder (Figures 2(a)-2(d)) and varus displacement of the humeral head from disruption of the medial calcar support and displacement of the greater tuberosity in the left shoulder (Figures 3(a)-3(d)).
case_images: Computed tomography images of the left shoulder showing the three-part fracture of the proximal humerus: (a) axial image, (b) sagittal image, (c) frontal view in a 3D image, and (d) posterior view in a 3D image.
case_images: CRIOR2022-2162331.003.jpg
case_images: PMC9045964_01_CRIOR2022-2162331.003.jpg
case_images: fig3
case_images: Computed tomography revealed a fracture dislocation with displaced comminuted fracture of the greater and lesser tuberosities in the right shoulder (Figures 2(a)-2(d)) and varus displacement of the humeral head from disruption of the medial calcar support and displacement of the greater tuberosity in the left shoulder (Figures 3(a)-3(d)).
case_images: Postoperative radiographs after bilateral reverse shoulder arthroplasty: (a) right shoulder and (b) left shoulder.
case_images: CRIOR2022-2162331.004.jpg
case_images: PMC9045964_01_CRIOR2022-2162331.004.jpg
case_images: fig4
case_images: Cancellous chips from the humeral head were packed between the humeral shaft and the tuberosities (Figure 4(a)). Therefore, we considered a cessation of blood supply to the humeral head and decided to use an RSA for the left side using the same prosthesis as for the right side (Figure 4(b)).
case_images: Active shoulder range of motion at the most recent follow-up: (a) forward elevation, (b) abduction, (c) adducted external rotation, and (d) adducted internal rotation.
case_images: CRIOR2022-2162331.005.jpg
case_images: PMC9045964_01_CRIOR2022-2162331.005.jpg
case_images: fig5
case_images: The active range of motion was 110 degrees of flexion, 110 degrees of abduction, -10 degrees of external rotation, and L4 for internal rotation on the right side and 120 degrees of flexion, 120 degrees of abduction, -10 degrees of external rotation, and L3 for internal rotation on the left side (Figures 5(a)-5(d)).
case_images: Radiographs showing both shoulders at the most recent follow-up: (a) Grashey view and (b) transscapular Y view of the right shoulder and (c) Grashey view and (d) transscapular Y view of the left shoulder.
case_images: CRIOR2022-2162331.006.jpg
case_images: PMC9045964_01_CRIOR2022-2162331.006.jpg
case_images: fig6
case_images: Radiographs revealed no lucent line on the humerus and glenoid components, although bone resorption and superior retraction of the tuberosities on both sides were observed at the final follow-up (Figures 6(a)-6(d)).