Mid-term comparative study between the glenoid and humerus lateralization designs for reverse total shoulder arthroplasty: which lateralization design is better?

Table 1 Characteristics of total 116 patients who underwent glenoid lateralization design RSA (bony increased offset-reverse total shoulder arthroplasty, BIO-RSA) and humerus lateralization design RSA (curved short-humeral stem reverse total shoulder arthroplasty, ASCEND)

Characteristic	Glenoid lateralization RSA (BIO-RSA, n = 60)	Humeral lateralization RSA (ASCEND, n = 64)	p-value
Characteristic	Mean ± SD	Mean ± SD	p-value
Sex (M/F)	15/45	14/50	0.682
Age (yr)	73.2 ± 5.3 (64–87)	75.0 ± 7.2 (56–88)	0.134
BMI	25.2 ± 4.5 (16–39)	24.9 ± 3.2(19–3)	0.691
Glenoid type (Walch et al.)	A1:34, A2:7, B1:13, B2:4 B3:1, C:1	A1:31, A2:16, B1:14, B2:2 B3:1	0.814
Follow-up (months)	38.5 ± 21.5 (18–86)	34.4 ± 13.1( 18–72)	0.209
Affected arm (Rt/Lt)	45/15	26/38	0.066

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