Long-term outcomes
Disease recurrence, cartilage displacement, perforation and
re-contraction/re-contraction pocket formation, etc. were measured as
long-term postoperative results one year after operation (Figure 6).
Graft dislocation in osteoplasty occurred in this patient. There was no
significant difference in the long-term results measured one year after
operation between the two groups.
DISCUSSION
Attic cholesteatoma from Prussian cavity, through superior membrane and
superior sinus to mastoid process. Among them, the endoscope with
curette has a wider field of operation for attic cholesteatoma extending
to maxillary sinus. Cholesteatoma undergoing mastoidectomy extends to
mastoid cavity, so ventilation should be ensured during the operation,
so that the lesion can be completely removed and the possibility of
recurrence of attic cholesteatoma can be completely solved.
Extent of surgical exposure
The main purpose of cholesteatoma surgery is to reveal the new
systematicness of the key parts of attic.7 The
exposure degree of each case in middle and middle ear surgery can be
measured by a special grading system. MESVI, as the only grading system
of middle ear surgical exposure, is the main content of our research.
The median MESVI of microscopic approach is not as good as that of
endoscopic approach. The median MESVI of the microscopic approach is
lower than that of the endoscopic approach under an approximately equal
exposure area. At this time, the perspective of endoscopic surgery was
broadened. The angle endoscope with appropriate instruments can be used
to check the corner of the upper membrane cavity, which can better and
more completely solve the disease without sacrificing extra bones.