Impact of Superior Oblique Transposition on Primary Position Deviation, a Pattern and Intorsion in Third Nerve Palsy
- 1 October 2016
- journal article
- research article
- Published by Taylor & Francis Ltd in Strabismus
- Vol. 24 (4), 173-177
- https://doi.org/10.1080/09273972.2016.1243136
Abstract
Purpose: To evaluate the role of superior oblique transposition on primary position alignment, A pattern, and intorsion in third nerve palsy. Methods: Ten patients with isolated, unilateral third nerve palsy were included in this prospective study. The patients were treated by conventional surgery on horizontal recti together with superior oblique transposition by Scott’s procedure in the paretic eye. Results: Pre-operative primary horizontal deviation was 60-80 PD (mean 70.00±7.45 PD). Pre-operative primary hypotropia was 15-22 PD (mean 18.80±2.48 PD). Mean A-pattern was 17.80±2.65 PD. All patients included in the study had some degree of objective torsion as measured by Guyton’s method. One patient had grade I objective intorsion, 2 had grade II, 6 had grade III, and 1 had grade IV objective intorsion. Primary position horizontal alignment (up to ±8 PD) was achieved in 9 patients. Primary position vertical alignment (up to ±8 PD) was achieved in all 10 patients. Only 2 of 10 patients had A-pattern of 10 PD, in the remaining 8 patients it was eliminated (PConclusion: Superior oblique transposition by Scott’s procedure along with conventional surgery on horizontal recti in third nerve palsy results in better horizontal and vertical alignment, and improves A-pattern and intorsion, thus leading to better binocular interaction.Keywords
This publication has 8 references indexed in Scilit:
- Lateral rectus muscle disinsertion and reattachment to the lateral orbital wallBritish Journal of Ophthalmology, 2005
- Surgical treatment of paralysis of the inferior division of the oculomotor nerve.American Journal of Ophthalmology, 1999
- Results of Surgery for Paralytic Exotropia due to Oculomotor PalsyOphthalmologica, 1996
- Surgical Management of Oculomotor Nerve PalsyAmerican Journal of Ophthalmology, 1991
- Clinical Assessment of Ocular TorsionAmerican Orthoptic Journal, 1983
- Superior Oblique Transposition for Third Nerve PalsyOphthalmology, 1982
- Present Concept of Superior Oblique Surgery*American Journal of Ophthalmology, 1954
- The Use of the Superior Oblique as an Internal Rotator in Third-Nerve ParalysisAmerican Journal of Ophthalmology, 1934