Extraocular muscle ductions following nasal transposition of the split lateral rectus muscle.
Can J Ophthalmol
; 58(6): 565-569, 2023 12.
Article
em En
| MEDLINE
| ID: mdl-36372135
ABSTRACT
OBJECTIVE:
To quantify changes in ductions following nasal transposition of the split lateral rectus muscle (NTSLR) for treating third nerve palsy.DESIGN:
Retrospective cohort study.PARTICIPANTS:
A single eye from each patient with third nerve palsy treated with NTSLR with ocular motility measurements.METHODS:
Observation of changes in pre- and postoperative ductions. Outcome measures including patient demographic and surgical factors associated with the ability to adduct beyond the midline after NTSLR were evaluated using multivariable logistic regression.RESULTS:
A total of 116 patients met the inclusion criteria for this study. The NTSLR significantly decreased abduction (median of 0 limitation [interquartile range (IQR), 0-0] prior to surgery to -4 [IQR, -4 to -3] after NTSLR; p < 0.001), with a corresponding improvement in adduction (median, -5 [IQR, -5 to -4] prior to surgery to -4 [IQR, -4 to -3] after NTSLR; p < 0.001). There was no change in median supraduction or infraduction after NTSLR (p > 0.05). The ability to adduct beyond the midline after NTSLR was demonstrated in 42% of patients. Although not statistically significant, a trend toward a postoperative ability to adduct beyond the midline was seen in patients who had concurrent superior oblique muscle tenotomy (odds ratio [OR]â¯=â¯5.08; 95% CI, 0.91-40.9) or who were designated with partial rather than complete third nerve palsy (ORâ¯=â¯2.29; 95% CI, 0.82-6.70).CONCLUSIONS:
NTSLR improves the horizontal midline positioning of eyes with third nerve palsy. Most eyes lose the ability to abduct, but some regain a modest ability to adduct while vertical ductions remain unchanged.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Doenças do Nervo Oculomotor
/
Estrabismo
Tipo de estudo:
Observational_studies
/
Risk_factors_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article