Fig 1.
A: Anteroposterior shoulder radiograph of an 81-year-old woman who suffered a car accident in which her right shoulder impacted the ground, sustaining a 4-part (AO type C) proximal humeral fracture. B: the first day after surgery showing all screws within the humeral head. C: Two months postoperatively, screws penetrating the joint.
Fig 2.
Screw penetration rate in the three fracture classification systems.
Fig 3.
Trauma-series x-rays of a 75-year-old woman at the follow-up of three months after surgery, the black arrow pointed at the screw penetrating the joint while it was missed on the true glenoid anteroposterior and transscapular lateral radiographs.