Effect of spinal fusion on joint space narrowing of the hip: comparison among non-fusion, short fusion, and middle or long fusion

Journal of Orthopaedics and Traumatology

Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 3 Results of linear multiple regression analyses

	Standard error	Standardized beta coefficient	T value	P value
Age (years)	0.001	− 0.019	− 0.404	0.687
Sex: female	0.011	− 0.059	− 1.145	0.253
BMI	0.001	0.045	1.030	0.304
CE (degrees)	0.001	− 0.078	− 1.456	0.146
Sharp (degrees)	0.001	0.06	1.086	0.278
Limb length discrepancy (mm)	0.002	0.047	1.091	0.276
SVA (mm)	0	− 0.016	− 0.241	0.81
TK (degrees)	0	− 0.038	− 0.618	0.537
LL (degrees)	0.001	0.006	0.054	0.957
SS (degrees)	0.002	0.002	− 0.109	0.914
PT (degrees)	0.002	− 0.069	− 0.387	0.699
PI (degrees)	0.002	− 0.029	− 0.138	0.89
Sacral fusion	0.019	− 0.048	− 0.647	0.518
Number of fusion levels	0.002	0.192	2.386	0.017*
Follow up period (months)	0	− 0.177	− 3.78	< 0.001*

BMI body mass index, CE center edge, SVA sagittal vertical axis, TK thoracic kyphosis, LL lumbar lordosis, SS sacral slope, PT pelvic tilt, PI pelvic incidence
* Statistically significant difference