High variability in the degree of liner stability ratio among glenoid components of different anatomical total shoulder arthroplasty systems

This study highlights significant variability in the LSR across different glenoid components of aTSA systems, with inconsistencies often even observed within the same system. While the direct clinical impact remains uncertain, the LSR of the glenoid component in aTSA may have an effect on aTSA stability, component wear and loosening attributed to the rocking horse phenomenon. Further research is needed to clarify the biomechanical consequences of LSR variations on aTSA.