sural nerve for facial reanimation

12
Diagnosis?

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make three grafts out of one sural nerve

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Page 1: sural nerve for facial reanimation

Diagnosis?  

Page 2: sural nerve for facial reanimation
Page 3: sural nerve for facial reanimation

Chronic  Unilateral  facial  palsy  

Facial  reanima7on  

One  stage  

Two  stage  

Three  stage  

Page 4: sural nerve for facial reanimation
Page 5: sural nerve for facial reanimation

Two/three  stage  

nerve  gra=  

hypoglossal  (ipsi)  

accessory  (ipsi)  

masseter  (ipsi)  

sural  (cross  face)  

muscle  gra=  

pectoralis  minor  

la7ssimus  dorsi  

gracilis  

serratus  anterior  

Page 6: sural nerve for facial reanimation

Problem  of  mass  movement  

Possible  solu7on:  3  independent  neuronal  inputs  combined  with  3  neurovascular  pedicles  of  one  single  muscle  

Can  1  sural  nerve  provide  3  gra=s?  

Page 7: sural nerve for facial reanimation

Yes  it  can!  But  with  how  many  fascicles?  

Page 8: sural nerve for facial reanimation

Some  contain  more...  

12  

9  

10  

11  

7  

6  

25cm  

30,5cm  

31,5cm  

Page 9: sural nerve for facial reanimation

...some  less  fascicles  

Page 10: sural nerve for facial reanimation

4  

3  

6  

3  

4  

5  

22cm  

23cm  

23,5cm  

Page 11: sural nerve for facial reanimation

Mean  number  of  fascicles  was  6,3  at  the  proximal  end  (min.  1,  max.  20)  and  6,7  distal  (min.  2,  max.  16)  in  the  generated  nerve  gra=s.    

The  average  number  of  interfascicular  bridges  (some  of  them  being  very  7ny),  that  had  to  be  cut  in  one  nerve  in  order  to  generate  these  three  nerve  transplants,  was  15  (min.  6,  max.  26).  

The  measurable  length  of  each    gra=  was  32  cm  in  average  (min.  19  cm,    max.  42  cm).  

Page 12: sural nerve for facial reanimation

Thank  you!