Table 2. A summary of the primary literature included in our study.

*This study contained 15 patients who were included in the total shoulder arthroplasty (TSA) group and 16 patients who were included in the reverse shoulder arthroplasty (RSA) group.

PGHO: primary glenohumeral osteoarthritis, TSA: total shoulder arthroplasty, RSA: reverse shoulder arthroplasty

TSA and RSA, TSA, or RSA	Lead author last name	Year published	Journal	Study type	Level of evidence	PGHO shoulder number (intact cuff)	Walch type B2 shoulder number
TSA and RSA	Alentorn-Geli [9]	2018	Journal of Orthopaedic Surgery	Retrospective cohort study	III	31*	31
TSA	Petri [14]	2016	Archives of Orthopedic Traumatology and Surgery	Retrospective cohort study	III	78	Could not determine
TSA	Sheth [15]	2020	Journal of Shoulder and Elbow Surgery	Prospective observational study	II	111	111
TSA	Neyton [16]	2019	Journal of Shoulder and Elbow Surgery	Retrospective cohort study	III	155	Could not determine
TSA	Hussey [17]	2015	Journal of Shoulder and Elbow Surgery	Retrospective cohort study	III	148	Could not determine
TSA	Nolte [18]	2021	The American Journal of Sports Medicine	Retrospective cohort study	III	37	Could not determine
RSA	Waterman [19]	2020	Journal of the American Academy of Orthopaedic Surgeons	Retrospective cohort study	III	43	43
RSA	Pettit [20]	2021	Journal of Shoulder and Elbow Surgery	Retrospective cohort study	III	116	57
RSA	Lindbloom [21]	2019	Journal of Shoulder and Elbow Surgery	Retrospective cohort study	III	129	Could not determine
RSA	Wall [22]	2007	The Journal of Bone and Joint Surgery	Prospective cohort observational study	II	25	Could not determine