Abstract
Background
Secondary unilateral cleft lip deformities are commonly observed in patients with cleft lip and traditional surgical methods can’t completely tackle this problem. The purpose of this study was to evaluate the outcomes of a novel surgical technique using force balance reconstruction of the orbicularis oris.
Methods
53 patients with secondary unilateral cleft lip deformity were included in this study, in which the orbicularis oris muscle was reconstructed symmetrically to achieve optimal force balance. Photometric 2d indexes were employed to evaluate the outcome of 27 patients, and 3d indexes for the remaining 26 patients. Aesthetic evaluation and parent-patient satisfaction surveys were also recorded.
Results
Significant differences were found in the following: (1) LH (the lip height), LW (the lip width), D1(the vertical distance from the white roll to the vermilion bottom at the christa philtra points) and D2(the vertical distance from the christa philtra points to the facial midline) when comparing preoperative and postoperative 2D images; (2) LH, LW, D1 and D2 when comparing preoperative and follow-up 2D images; (3) RMS (root mean of square) when comparing preoperative and postoperative 3D images. Aesthetic evaluation in the follow-up period was a mean of 4.29, while parent-patient satisfaction of the overall appearance was a mean of 4.41.
Conclusions
The results suggest this new muscle reconstruction technique can significantly improve the surgical outcome of secondary unilateral cleft lip deformities.
Level of Evidence IV
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Funding
Research and Develop Program, West China Hospital of Stomatology, Sichuan. LCYJ2019-10 and LCYJ2019-12
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YC and CZ contributed to conception, design, data acquisition, analysis, and interpretation, drafted the manuscript; MY and CT contributed to data acquisition, analysis; BS and DWL contributed to conception and data interpretation; CL contributed to conception, design, data interpretation, drafted and critically revised the manuscript. All authors have approved the manuscript and agree with submission to Aesthetic Plastic Surgery.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. Our research has got the review and approval of medical ethics committee of West China Stomatology Hospital of Sichuan University, and the IRB number is WCHSIRB-D-2017-143.
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Informed consent was obtained from all participants in this study.
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266_2024_4110_MOESM1_ESM.jpg
Supplementary file1 Supplemental Figure 1. Surgical Procedure. a. Markings were made with Bonnie blue ink to indicate the christa philtri, the labrale superioris, the columella base, the subnasale, and the alare; b. An “M” incision was made along the junction of the wet and dry vermillion; c. Central excess muscle on the non-cleft side was split to form a muscle flap, which was rotated toward the vermilion tubercle and secured; d. The deep layer of orbicularis oris muscles was sutured in the midline to ensure the muscle force balance on both sides of the midline; e. The superficial layer of muscles on the non-cleft side, the subcutaneous tissue of the upper lip, the superficial layer of muscles on the cleft side, and the deep muscles were sutured together at the midline; f. The red lip mucosa was sutured gradually from the sides to the middle.
266_2024_4110_MOESM2_ESM.tif
Supplementary file2 Supplemental Figure 2. 2D Photographs Measurement. LH = lip height; LW = lip width; D1 = vertical distance from the white roll to the vermilion bottom at the christa philtri points; D2 = vertical distance from the christa philtri points to the facial midline.
266_2024_4110_MOESM3_ESM.jpg
Supplementary file3 Supplemental Figure 3. 3D photographs measurement. a. The original image was trimmed and corrected for the position of the bilateral points of the endocanthion; b. A mirror image was created using the Symmetry Analysis Tool, which was paired and overlapped with the original image; c. A trapezoidal region was enclosed by the bilateral points of the alare and the chelion; d. A distance map was created and the RMS (root mean of square) of all values were calculated and displayed by the Histogram Tool.
Supplementary file4 Video. The procedure of the force balance reconstruction of orbicularis oris.
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Chen, Y., Zhang, C., Yao, M. et al. Force Balance Reconstruction of the Orbicularis Oris in Secondary Unilateral Cleft Lip Deformity. Aesth Plast Surg (2024). https://doi.org/10.1007/s00266-024-04110-1
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DOI: https://doi.org/10.1007/s00266-024-04110-1