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Table 3 Correlation between sagittal alignment parameters of type I

From: Cervical sagittal balance after consecutive three-level hybrid surgery versus anterior cervical discectomy and fusion: radiological results from a single-center experience

 

CL

SA

T1S

SVA

T1S-CL

C2S

O-C2A

Pre

CL

1

0.617#

0.222

− 0.341#

− 0.675#

− 0.674#

− 0.563#

SA

 

1

0.338#

− 0.147

− 0.264

− 0.426#

− 0.554#

T1S

  

1

0.323#

0.570#

0.266

− 0.038

SVA

   

1

0.532#

0.533#

0.219

T1S-CL

    

1

0.769#

0.446#

C2S

     

1

0.559#

O-C2A

      

1

FFU

CL

1

0.421#

0.188

− 0.256

− 0.703#

− 0.321#

− 0.290#

SA

 

1

0.189

0.066

− 0.216

0.034

− 0.070

T1S

  

1

0.290#

0.566#

0.279

0.111

SVA

   

1

0.425#

0.338#

0.187

T1S-CL

    

1

0.471#

0.324#

C2S

     

1

0.393#

O-C2A

      

1

  1. Bold values indicate statistically different
  2. Pre preoperative, FFU final follow-up, CL cervical lordosis, SA segment alignment, T1S T1 slope, SVA sagittal vertical axis, C2S C2 slope, O-C2A occipital to C2 angle
  3. #Significant correlation between parameters (p < 0.05)