Article Figures & Data
Figures
- Figure 1
Comorbidities by surgery type. There was no significant difference between groups in preoperative comorbidities. The most commonly observed comorbidities were chronic obstructive pulmonary disease and diabetes mellitus in both groups. ACDF, anterior cervical discectomy and fusion.
- Figure 2
Cervical levels treated by surgery type. There was a significant difference between groups in the levels most commonly treated. Within the anterior cervical discectomy and fusion (ACDF) group, patients most often underwent surgery at the C5-C6 level followed by C6-C7 vs the posterior cervical foraminotomy group that more frequently underwent decompression at C6-C7 followed by C5-C6.
- Figure 3
Reasons for reoperation of total cohort. Reoperation was most commonly performed for recurrent symptoms in both groups followed by instrumentation-related complications such as pseudarthrosis and adjacent segment disease.
- Figure 4
Reasons for reoperation by surgery type. Reoperation for recurrent symptoms was not statistically different between groups. There was significantly more reoperation for adjacent segment disease in the anterior cervical discectomy and fusion (ACDF) group. There were more reoperations for wound infections in the posterior cervical foraminotomy group.
Tables
Variable ACDF PCF Significance for Equality of Means (P Value) N Mean (SD) SEM N Mean (SD) SEM Age at encounter 236 51.03 (11.14) 0.73 138 51.3 (10.67) 0.91 0.82 Body mass index 230 28.57 (6.16) 0.40 137 28.14 (5.15) 0.44 0.50 Charlson Comorbidity Index 236 1.89 (2.01) 0.13 138 1.68 (1.50) 0.13 0.25 American Society of Anesthesiologists 236 2.22 (0.56) 0.04 138 2.11 (0.46) 0.04 0.031 Procedure time in minutes 236 124.78 (69.51) 4.53 138 124.79 (67.44) 5.74 0.998 Days to reoperation 26 247.88 (200.59) 39.34 8 319.25 (252.53) 89.28 0.413 Abbreviations: ACDF, anterior cervical discectomy and fusion; PCF, posterior cervical foraminotomy; SEM, standard error of the mean.
Bolded values indicate significance at P < 0.05
Lenght of Stay Predictor Unstandardized Coefficients Standardized Coefficients t Value P Value B Standard Error β Constant 1.44 0.57 2.54 0.01 ACDF = 0, PCF = 1 −0.17 0.15 −0.06 −1.12 0.27 Age −0.02 0.01 −0.13 −1.92 0.06 Body mass index 0.01 0.01 0.06 1.16 0.25 Charlson Comorbidity Index 0.16 0.05 0.22 3.32 <0.01 Male = 0, Female = 1 0.45 0.14 0.17 3.19 <0.01 Level 0.03 0.08 0.02 0.33 0.74 Abbreviations: ACDF, anterior cervical discectomy and fusion; PCF, posterior cervical foraminotomy.
Bolded values indicate significance at P < 0.05
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