Unexpected extraocular muscle hypoplasia during strabismus surgery: case series
Abstract Background Reports of congenital isolated medial rectus muscle abnormalities are relatively uncommon and are seldom seen. According to our clinical experience, some rare cases of abnormalities could not be detected by clinical examination and imaging before surgical treatment, which brought...
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BMC
2024-12-01
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| Series: | BMC Ophthalmology |
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| Online Access: | https://doi.org/10.1186/s12886-024-03787-x |
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| author | Yiqing Yuan Xiying Wang Ling Ling Xiaobin Yu Chao Jiang Wen Wen Chen Zhao |
| author_facet | Yiqing Yuan Xiying Wang Ling Ling Xiaobin Yu Chao Jiang Wen Wen Chen Zhao |
| author_sort | Yiqing Yuan |
| collection | DOAJ |
| description | Abstract Background Reports of congenital isolated medial rectus muscle abnormalities are relatively uncommon and are seldom seen. According to our clinical experience, some rare cases of abnormalities could not be detected by clinical examination and imaging before surgical treatment, which brought difficulties to diagnosis and surgery. Case presentation In order to provide clinical guidance, we summarized 4 cases with congenital hypoplasia of the medial rectus muscle in our hospital recently. All the patients exhibited exotropia in the primary position. Only one patient (25.0%) exhibited clinically significant limitations of ocular movements. All the patients were identified with congenital hypoplasia of the medial rectus muscle during strabismus surgery; one patient also had hypoplasia of the lateral rectus muscle. However, abnormalities of the rectus muscles were not identified by MRI in three patients (75.0%). In terms of treatment, we enhanced the surgery amount in three patients. Good correction of exotropia was achieved in all patients. Conclusions Congenital hypoplasia of the medial rectus muscle is extremely rare and some cases are difficult to be detected by clinical examination or imaging. Surgeons should be aware of this condition and should actively but cautiously adjust the surgical parameters based on the patients' intraoperative status. |
| format | Article |
| id | doaj-art-ce588ed10e6a44d68e47694b68316dda |
| institution | OA Journals |
| issn | 1471-2415 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Ophthalmology |
| spelling | doaj-art-ce588ed10e6a44d68e47694b68316dda2025-08-20T02:20:45ZengBMCBMC Ophthalmology1471-24152024-12-012411810.1186/s12886-024-03787-xUnexpected extraocular muscle hypoplasia during strabismus surgery: case seriesYiqing Yuan0Xiying Wang1Ling Ling2Xiaobin Yu3Chao Jiang4Wen Wen5Chen Zhao6Department of Ophthalmology and Visual Science, Eye and ENT Hospital, Shanghai Medical College, Fudan UniversityDepartment of Ophthalmology and Visual Science, Eye and ENT Hospital, Shanghai Medical College, Fudan UniversityDepartment of Ophthalmology and Visual Science, Eye and ENT Hospital, Shanghai Medical College, Fudan UniversityBeijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical UniversityDepartment of Ophthalmology and Visual Science, Eye and ENT Hospital, Shanghai Medical College, Fudan UniversityDepartment of Ophthalmology and Visual Science, Eye and ENT Hospital, Shanghai Medical College, Fudan UniversityDepartment of Ophthalmology and Visual Science, Eye and ENT Hospital, Shanghai Medical College, Fudan UniversityAbstract Background Reports of congenital isolated medial rectus muscle abnormalities are relatively uncommon and are seldom seen. According to our clinical experience, some rare cases of abnormalities could not be detected by clinical examination and imaging before surgical treatment, which brought difficulties to diagnosis and surgery. Case presentation In order to provide clinical guidance, we summarized 4 cases with congenital hypoplasia of the medial rectus muscle in our hospital recently. All the patients exhibited exotropia in the primary position. Only one patient (25.0%) exhibited clinically significant limitations of ocular movements. All the patients were identified with congenital hypoplasia of the medial rectus muscle during strabismus surgery; one patient also had hypoplasia of the lateral rectus muscle. However, abnormalities of the rectus muscles were not identified by MRI in three patients (75.0%). In terms of treatment, we enhanced the surgery amount in three patients. Good correction of exotropia was achieved in all patients. Conclusions Congenital hypoplasia of the medial rectus muscle is extremely rare and some cases are difficult to be detected by clinical examination or imaging. Surgeons should be aware of this condition and should actively but cautiously adjust the surgical parameters based on the patients' intraoperative status.https://doi.org/10.1186/s12886-024-03787-xExtraocular muscleCongenital abnormalityStrabismus surgery |
| spellingShingle | Yiqing Yuan Xiying Wang Ling Ling Xiaobin Yu Chao Jiang Wen Wen Chen Zhao Unexpected extraocular muscle hypoplasia during strabismus surgery: case series BMC Ophthalmology Extraocular muscle Congenital abnormality Strabismus surgery |
| title | Unexpected extraocular muscle hypoplasia during strabismus surgery: case series |
| title_full | Unexpected extraocular muscle hypoplasia during strabismus surgery: case series |
| title_fullStr | Unexpected extraocular muscle hypoplasia during strabismus surgery: case series |
| title_full_unstemmed | Unexpected extraocular muscle hypoplasia during strabismus surgery: case series |
| title_short | Unexpected extraocular muscle hypoplasia during strabismus surgery: case series |
| title_sort | unexpected extraocular muscle hypoplasia during strabismus surgery case series |
| topic | Extraocular muscle Congenital abnormality Strabismus surgery |
| url | https://doi.org/10.1186/s12886-024-03787-x |
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