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Table 10 Sunderland grades

From: Comparison of prognosis in two methods for the lingual nerve repair: direct suture with vein graft cuff and collagen allograft method

  Group A (direct suturing) Group B (collgen graft)
Preoperation 6 months 12 months Preoperation 6 months 12 months
Grade V 4 0 0 4 0 0
Grade VI 6 0 0 6 0 0
Grade III 0 3 1 0 7 2
Grade II 0 6 8 0 3 7
Grade I 0 1 1 0 0 1
  1. P values were calculated using Fisher’s exact test
  2. Between groups A and B at preoperation and 6 and 12 months after the operation, there was always no significant difference