Table 2. Clinical Outcomes According to Primary Diagnosis at the 2-Year Follow-up.

Variable	No.	VAS	Constant	UCLA	Satisfaction
CTA	45	1.6 ± 1.4	57.4 ± 7.7	29.2 ± 3.5	88.2 ± 10.3
Massive RCT	31	2.0 ± 1.6	59.9 ± 9.5	29.0 ± 4.0	85.2 ± 11.8
PTA	9	2.4 ± 1.9	55.7 ± 10.9	27.7 ± 4.9	82.2 ± 13.9
Primary OA	6	2.5 ± 1.0	52.3 ± 9.4	26.5 ± 3.7	85.0 ± 5.5
RA	4	0.8 ± 1.0	60.8 ± 3.1	31.0 ± 2.0	90.0 ± 14.1
Infection	3	0.7 ± 1.2	53.7 ± 9.2	27.7 ± 4.9	96.7 ± 5.8
Overall	98	1.8 ± 1.5	57.8 ± 8.8	28.8 ± 3.8	86.8 ± 11.1

Values are presented as mean ± standard deviation.

VAS: visual analog scale, Constant: Constant score, UCLA: University of California at Los Angeles, Satisfaction: patients' subjective satisfaction, CTA: cuff tear arthropathy, Massive RCT: irreparable massive rotator cuff tear without glenohumeral arthritis, PTA: posttraumatic arthritis, OA: osteoarthritis, RA: rheumatoid arthritis, Infection: arthritis due to infection sequelae.