1. Comparative Study of Rectus Muscle Union and Orbital Periosteum Fixation.
- Author
-
ZHANG Yang, CHEN Shao-chun, TANG Min, and SUN Tao
- Abstract
Objective To comparatively analyze the effect of Rectus muscle union ( RMU) and orbital periosteum fixation (OPF) on paralytic esotropia and esotropia fixus. Methods 50 cases of paralytic esotropia and 22 cases of esotropia fixus were analyzed retrospectively in the department of ophthalmology, the First Affiliated Hospital of Kunming Medical University from February 2002 to April 2013 . According to the different surgical methods, two kinds of esotropia were divided into group A (RMU) and group B (OPF) . After analyzed procedure and characteristics of two kinds of surgery, the changes of diplopia and eyeball movement were compared qualitatively, as well as the degree of strabismus angle done quantitatively in two groups respectively before and after the treatment. Finally, the correlation of each esotropia was compared between two groups. Results ( 1) The symptom of diplopia was disappeared in both groups of PE and EF after 1 week later of surgery, and then diplopia appeared ahead again in group A while group B did not change after 2months later; 2. The lateral rectus muscle can abduct about 8 ° to the temporal side in Group A of PE, and the other directions was seldom restricted; While eyeball in Group B can turn upward and downward slightly , but the other direction movement was limited 1 weeks and 2 months after surgery. A few cases of eyeball can turn to nasal side or up and downwords slightly in group A of EF. However, all directions was limited in group B; 3, The mean strabismus angle of both groups was within ± 5 ° (0 ± 10) in Each esotropia after 1 weeks of surgery (P < 0.05) ;The strabismus angle in group A regressed after 2 months of surgery compared with that of 1 week late (P < 0.05) , while group B did not change (P > 0.05) ; 4. Strabismus angle of each esotropia was no statistical difference in both groups before and after 1 weeks of surgery (P > 0.05) ; However, the strabismus angle was more different in both groups after 2 months later (P < 0.05) . Conclusion (1) The results of two surgeries for PE and EF correcting strabismus are satisfactory. However, esotropia treated by RMU is more recurrent than OPF in the long term. (2) The RMU does not only affect the eye movement, but can recover part of rotation. And the OPF limites the eye movement. (3) The severe cases of PE and the recurrence after the RMU are the indications of OPF, while mild EF can be treated with OPF. [ABSTRACT FROM AUTHOR]
- Published
- 2014