Table 6 Spearman correlations mean (Spearman’s r) between SMM and radiological parameters.

From: Correlation analysis of sagittal alignment and skeletal muscle mass in patients with spinal degenerative disease

 

SMM

CL

TK

LL

PI

PT

SS

SVA

Cervical group (n = 57)

SMM

1.000

−0.006

−0.035

0.202

−0.220

−0.480***

0.194

−0.248

CL

−0.006

1.000

0.243

0.198

0.257

0.005

0.292*

0.293*

TK

−0.035

0.243

1.000

0.402**

0.077

−0.094

0.219

0.007

LL

0.202

0.198

0.402**

1.000

0.307*

−0.515***

0.795***

−0.248

PI

−0.220

0.257

0.077

0.307*

1.000

0.306*

0.486***

0.247

PT

−0.480***

0.005

−0.094

−0.515***

0.306*

1.000

−0.584***

0.121

SS

0.194

0.292*

0.219

0.795***

0.486**

−0.584***

1.000

0.105

SVA

−0.248

0.293*

0.007

−0.248

0.247

0.121

0.105

1.000

Lumbar group (n = 256)

SMM

1.000

−0.088

−0.044

0.179**

−0.167**

−0.288***

0.170**

−0.163**

CL

−0.088

1.000

0.227***

−0.110

0.079

0.172**

−0.088

0.288***

TK

−0.044

0.227***

1.000

0.416***

0.106

−0.045

0.125*

0.030

LL

0.179**

−0.110

0.416***

1.000

0.257***

−0.457***

0.718***

−0.624**

PI

−0.167**

0.079

0.106

0.257***

1.000

0.454***

0.409***

0.086

PT

−0.288***

0.172**

−0.045

−0.457***

0.454***

1.000

−0.538***

0.347***

SS

0.170**

−0.088

0.125*

0.718***

0.409***

−0.538***

1.000

−0.306***

SVA

−0.163**

0.288***

0.030

−0.624**

0.086

0.347***

−0.306***

1.000

  1. Cervical group (n = 57).
  2. Lumbar group (n = 256).
  3. SMM; skeletal muscle mass; CL, cervical lordosis (C2–C7); TK, thoracic kyphosis (Th5–12); LL, lumbar lordosis (T12–S1); PI, pelvic incidence; PT, pelvic tilt; SS, sacral slope; SVA; sagittal vertical axis *p < 0.05, **<0.01, ***<0.001 indicates significant differences between groups.
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