Related Experiment Video
Updated: Aug 5, 2026
Minimally Invasive Treatment for Thoracolumbar Burst Fracture Using Sagittal Alignment Screws and A Trauma Reduction Device
Published on: November 8, 2024
Late Central Screw Breakage of a Monoblock Glenoid Baseplate Placed With Bone Graft: A Report of 3 Cases
Roy Romem1, Swara R Kalva, Dario Fucich
1Department of Orthopedic Surgery, NYU Grossman School of Medicine, NYU Langone Orthopedic Hospital, NYU Langone Health, New York, New York.
Cases:
Three patients (61-81 years) experienced abrupt shoulder pain and functional decline more than 5 months after reverse total shoulder arthroplasty (RTSA) using a monoblock central-screw baseplate in graft-reconstructed glenoids. Imaging revealed central screw breakage with variable baseplate displacement. Two underwent successful revision with restoration of stable fixation; in the third, revision was deferred for medical comorbidities.
Conclusion:
Central screw breakage is an important marker of glenoid fixation failure after RTSA. These cases suggest an association with graft-dependent baseplate fixation, limited native bone support, and consequently late fatigue failure. Prompt diagnosis and timely management are essential.