Table 4.

Indications for Primary Shoulder Arthroplasty in the United States: 2009–2011

	Anatomic Total Shoulder Arthroplasty*	Hemiarthroplasty	Reverse Shoulder Arthroplasty**
Osteoarthritis	90.1%	42.8%	53.2%
Proximal humeral fracture‡	1.2%	38.5%	10.1%
Rheumatoid arthritis	4.1%	3.8%	5.8%
Avascular necrosis of humeral head	3.1%	7.0%	1.8%
Rotator cuff syndrome/tear	N/A	N/A	52.5%

^*includes only patients coded as anatomic total shoulder arthroplasty in 2011

^**includes only patients coded as having reverse shoulder arthroplasty in 2010 and 2011

^‡includes surgical and anatomical neck of humerus

^±Mean ± Standard Deviation