Background and Objectives: Among the postoperative complications of Caldwell-Luc operation, maxillary cysts are sometimes difficult to manage properly by conventional revision Caldwell-Luc procedure. However, with the advent of endoscopic
procedures, the technique of intranasal fenestraion operation through the inferior meatus has been improved. This study evaluate the surgical cases of postoperative maxillary cyst. Materials and Method: We reviewed 58 cases of
postoperative
maxillary cyst which were treated surgically in the last 10 years. We analyzed their chief complaints such as sex, age, duration between the initial surgery and the presentation of the symptoms, symptom relief after revision surgery, and the
recurrence
rate of each surgical techniques. Sites of the cyst in the maxillary sinus and the existence of the septa were analysed radiologically by using computed tomograms of paranasal sinuses. Fourty-eight cases received inferior meatal fenestration
operation
and 12 cases received revicion Caldwell-Luc operation. Results: Inferior meatal fenestration operation could be best indicated in the patients with bulging cysts in the inferior meatus. However, the non-bulging cysts which tare in contact
with
the inferior metus and those with the inferior metus and those with incomplete septa were also treated with the inferior meatal fenestration operation without recurrence. Comparing with the revision Caldwell-Luc procedure, the inferior meatal
fenestration operation was less time consuming and provided less postoperative discomfort for the patients. Also, since the operation is carried out under the direct endoscopic control, fine procdures and the removal of septa in the cysts were
possible.
Conclusions: For inferior meatal fenesration operation, the need for a pre-operative endoscopic nasal examination and an evaluation of comography should be emphasized before selecting the suitable method of treatment. Inferior meatal
fenestartion
operations appear to be the most suitable treatment for cases where cysts bulge into the inferior meatus.
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