Mid-term shoulder functional and quality of life outcomes after shoulder replacement in obese patients

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Table 4 Patient-reported functional outcomes

	Non-obese (<25 kg/m²)	Obese (30–39.9 kg/m²)	Morbidly obese (≥40 kg/m²)	p (sig) obesity	p (sig) surgery type	p (sig) obesity * surgery interaction
ASES
Preoperative	39.5 ± 16.6	36.7 ± 14.8	27.1 ± 10.6
2 years	80.1 ± 18.0	81.4 ± 18.2	72.3 ± 16.6
Follow-up	74.8 ± 20.5	78.9 ± 19.8	68.2 ± 23.4	0.114	0.661	0.313
SPADI
Preoperative	65.5 ± 16.2	67.3 ± 13.5	68.9 ± 7.5
2 years	20.6 ± 18.8	20.3 ± 21.2	32.1 ± 17.7
Follow-up	25.9 ± 21.1	21.9 ± 19.3	33.4 ± 23.7	0.205	0.265	0.770
UCLA
Preoperative	13.9 ± 4.3	13.8 ± 3.8	13.7 ± 0.6
2 years	29.0 ± 5.2	29.3 ± 5.8	26.6 ± 6.8
Follow-up	27.6 ± 6.1	28.7 ± 5.4	25.7 ± 7.0	0.766	0.540	0.373
Constant score (normalized)
Preoperative	39. 5 ± 15.3	37.3 ± 12.5	32.1 ± 11.2
2 years	73.7 ± 13.9	73.8 ± 14.3	62.3 ± 15.6
Follow-up	70.0 ± 15.6	73.9 ± 13.7	63.6 ± 19.6	0.826	0.426	0.523

Values are expressed in points and are shown as mean ± SD. Significance is the interaction of time point by obesity status
ASES American Shoulder and Elbow Surgeons survey, UCLA University of California at Los Angeles Shoulder Rating scale, SPADI Shoulder Pain and Disability Index