Recession Vs Myotomy-Comparative Analysis of Two Surgical Procedures of Weakening Inferior Oblique Muscle Overaction

Jasmina Alajbegovic-Halimic, Denisa Zvizdic, Amra Sahbegovic-Holcner, Amira Kulanic-Kuduzovic, Jasmina Alajbegovic-Halimic, Denisa Zvizdic, Amra Sahbegovic-Holcner, Amira Kulanic-Kuduzovic

Abstract

Introduction: Inferior oblique overaction (IOOA) can be primary or secondary, isolated or combined to other types of horizontal deviation, mostly with esotropias. Surgical weakening of IOOA means several techniques like; recession, myotomy, myectomy, anteroposition etc.

Goals: we analyzed the effect of inferior oblique muscle surgical weakening comparing two groups of patients with primary hypertropia.

Material and methods: In 5-years retrospective study, we observed 33 patients on which we did the surgical procedure of weakening inferior muscle overaction by two methods; recession and myotomy.

Results: In total number of 33 patients, there were 57,6% male and 42,4% female patients with average age of 10,6±7,5 (in range of 4-36). There was 33,3% of isolated primary hypertropias, and 66,7% combined with esotropias. At 23 (69,9%) patients the recession surgical procedure was done, and with 10 (30,1%) myotomy. Better effect and binocularity was in 65,2% of patients in recession group which was statistically significant with significance level of p<0,0, χ2=5,705; p=0,021.

Conclusion: Comparing of two surgical procedures of weakening inferior oblique muscles overaction, recession is better procedure than myotomy.

Keywords: comparison; inferior oblique muscle; myotomy; recession; weakening.

Conflict of interest statement

CONFLICT OF INTEREST: NONE DECLARED.

Figures

Figure 1
Figure 1
Sex distribution is no statistically significant (p>0,05). X2=0,337; p=0,419
Figure 2
Figure 2
Age distribution is no statistically significant (p>0,05). t=4,878; p=0,035
Figure 3
Figure 3
Type of deviation regarding to type of surgery procedure. χ2=7,174;p=0,007
Figure 4
Figure 4
Preoperative angle of vertical deviation, p>0,05. t=2,599; p=0,117
Figure 5
Figure 5
Postoperative angle of vertical deviation, p>0,05. t=2,599; p=0,117
Figure 6
Figure 6
Binocular vision according to type of surgery p

Figure 7

Corelation coefficient towards of effect…

Figure 7

Corelation coefficient towards of effect of surgery on. p

Figure 7
Corelation coefficient towards of effect of surgery on. p
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References
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Figure 7
Figure 7
Corelation coefficient towards of effect of surgery on. p
All figures (7)

References

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