Skip to main content

Table 1 Contact area on the grafts in the 2 groups A-Type and C-Type showing the effects of different fixation techniques from posterior, anterior or combined instrumentations

From: Compression and contact area of anterior strut grafts in spinal instrumentation: a biomechanical study

Group

IF

AR/IF

IF + PC

AR

A-Type

    

Mean (mm 2 )

449

540 #

533 #

490

SD

72

67

45

68

% of max. (SD)

75 (12)

90 (11)

89 (8)

82 (11)

C-Type

    

Mean (mm 2 )

318 *

521 #

308 *

435

SD

90

60

88

89

% of max. (SD)

53 (15)

87 (14)

51 (15)

73 (15)

  1. Mean and Standard deviation, percentage calculated on the base of a theoretical maximum of 600 mm2 on the graft. # vs. IF in the same group P < 0.05, * vs. corresponding fixation in group A-Type p < 0.01.