چكيده لاتين :
Background: In 1991, Wright described a superior oblique
expander procedure for browns syndrome and superior overaction
with good results. Originally, this procedure has been performed
with silicone band expander. The aim of this study was
to report the results of treatment of a series of patients with Apattern
strabismus associated with overacting superior oblique
muscle using the fascia lata tendon expander technique.
Methods: A total of 12 patients with bilateral overaction of
the superior oblique muscle and A-pattern strabismus were
treated with bilateral superior oblique lengthening with fascia
lata according to the values recommended by Wright. Fascia
lata was harvested through a Iineal incision on the lateral aspect
of the patientsי thigh.
Results: The follow-up was 4 to 51 months (mean, 28.8 ± 20.7
months). Mean superior oblique overaction improved from 3.5
± 0.8 before surgery to 0.8 ± 0.9 after surgery (P<0.001). Mean
A-pattern improved from 26.4 ± 8.5 PO to 1.7 ± 7 PD
(P<0.001), and subjective intorsion improved from 6 ± 0.7 degree
to 0.3 ± 1.1 degree (P<0.001) . One patient developed overcorrection.
None of the patients developed recurrence.
Conclusion: The fascia lata tendon spacer is a useful procedure
in the treatment of A-pattern strabismus due to superior oblique
overaction . This technique may be superior to posterior tenectomy
because of less incidence of superior oblique overaction
recurrence; however, the operation time is longer.
