Healed subscapularis and its clinical implications for internal rotation in humeral lateralized reverse shoulder arthroplasty

Healed SSC groups showed significantly better IR aROM, and IR strength than both nonhealed and nonrepaired SSC groups, highlighting SSC healing's crucial role in enhancing IR functional outcomes even with humeral lateralized RSA; hence, SSC repair should be advocated whenever possible during RSA, though further research is needed to improve its low healing rate.