Application of a new digital fibular transfer and fixation guide plate in the reconstruction of mandibular defects

doi:10.19438/j.cjoms.2025.01.008

Abstract

Abstract: PURPOSE: To investigate the effect of a new digital fibular transfer and fixation guide in mandibular reconstruction. METHODS: A total of 11 patients with mandibular defects who underwent fibular flap reconstruction in the First Affiliated Hospital of Xinjiang Medical University from September 2021 to July 2023 were collected. In the experimental group (n=5), the fibular transfer and fixation guide plate and the fibular osteotomy molding guide plate were printed before operation, and the osteotomy and shaping were performed according to the instructions of the guide plate during operation. In the control group (n=6), traditional osteotomy guide plate was used for fibula osteotomy and shaping. The evaluation of related indicators during operation, the occurrence of postoperative complications, and the evaluation of temporomandibular joint function before operation, 2 weeks, 1 month and 3 months after operation were compared between the two groups. SPSS 26.0 software package was used for data analysis. RESULTS: The total operation time, intraoperative blood loss and flap ischemia time in the experimental group were significantly less than those in the control group (P<0.05). The lower extremity function of the experimental group was significantly better than that of the control group(P<0.05). The maximum postoperative opening degree, left side range of motion, right side range of motion and extension range of motion in 2 groups decreased first and then gradually increased. One month after operation, the range of extension motion in the experimental group was significantly greater than that in the control group (P<0.05), but there was no significant difference in other indexes between the two groups (P>0.05). CONCLUSIONS: The new digital fibula transfer and fixation plate has good guiding surgical function in mandibular reconstruction, which can accurately resect the pathological bone segment during operation and ensure the position of the residual bone, the condyle, and the occlusion relationship. It can also reduce the operation time and reduce the ischemia time of the flap.

Key words: Fibular transfer fixation guide plate, Fibula musculocutaneous flap, Mandibular defect, Digital design

CLC Number:

R782.2

YANG Yi-fan, ZHANG Yi-bo, LIU Xue, XU Li-ming, ZIERDA Ayiding, LING Bin. Application of a new digital fibular transfer and fixation guide plate in the reconstruction of mandibular defects[J]. China Journal of Oral and Maxillofacial Surgery, 2025, 23(1): 40-47.

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