Application of Individualized in-situ Moulding Guide Plate in Mandibular Reconstruction using a Vascularized Iliac Muscle Flap

doi:10.13701/j.cnki.kqyxyj.2019.08.011

Abstract

Abstract: Objective: To analyze the clinical effect of in-situ moulding of vascularized iliac bone before disconnecting vessel pedicle using individualized in-situ moulding guide plate. Methods: 20 patients with mandibular tumors who underwent tumor resection were selected and repaired with autologous iliac muscle flap. The in-situ moulding guide plate was a guide plate that using a bridge to connect two mandibular ends after osteotomy. After iliac bone extraction, the bone was grinded according to the in-situ moulding guide plate. 10 cases were defined as group A which used in-situ moulding guide plate, and 10 cases defined as group B without guide plate. The deviations between post-operative and preoperative design were compared. Results: All 20 operations were successful. Patients recovered well. The average operation time of group A and group B were 5.24h and 7.09h, respectively (P=0.01). The average hospital days after operation were 9.6d and 11.2d, respectively (P=0.02). The average deviations of condylar distance for group A with group B were (1.44±.99) mm and (1.92±0.81) mm, respectively (P=0.44), the average deviations of mandibular angle distance after operation were (1.83±0.80) mm and (2.50±1.50) mm, respectively (P=0.36), and the average deviations from the midpoint of mandible to the midpoint of condylar connection were (0.97±0.40) mm and (2.67±3.31) mm, respectively (P=0.29). Conclusion: The application of individualized in-situ moulding guide plate can improve the operation efficiency and accuracy and promote recovery.

Key words: virtual surgery, in-situ moulding, iliac bone graft, mandibular reconstruction

LU Tingwei, LIU Chaoming, WU Tianfu, SHAO Zhe, SUN Yanfang, SUN Zhijun, LIU Bin. Application of Individualized in-situ Moulding Guide Plate in Mandibular Reconstruction using a Vascularized Iliac Muscle Flap[J]. Journal of Oral Science Research, 2019, 35(8): 766-771.

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