Table 1.

Intraoperative stability assessment of Reverse Shoulder Arthroplasty.

Test	Abnormal finding	Management options
External Rotation in neutral	Hinged opening	Check posterior bony impingement acting as a hinge
		Larger glenosphere
Abduction/External Rotation	Anterior dislocation	Build humeral height
		Check posterior bony impingement acting as a hinge
		Larger glenosphere
Adduction/Internal Rotation	Posterior dislocation	Build humeral height
		Check anterior bony impingement acting as a hinge
		Larger glenosphere
Conjoint tendon tension	Excessive tension	Reduce humeral height
“Shuck test”	Excessive pistoning	Build humeral height
		Eccentric glenosphere
“Bed shuffle Test”	Anterosuperior translation	Build glenoid offset
		Larger glenosphere with or without lateralisation
		Lateralised humeral liner
“Lateral Thrust Test”	Lateral dislocation	Build glenoid offset
		Larger glenosphere with or without lateralisation
		Lateralised humeral liner