Volumetric Analysis of Unilateral Alveolar Bone Defect Using Modified Subtraction in Older Chinese Patients

Currently, there remain unresolved issues in the treatment of alveolar clefts, the resolution of which could greatly benefit many patients with cleft lip and palate. In alveolar cleft treatment research, a reliable tool for pre- and postoperative assessment is crucial. This study presents a concise and accurate method for postoperative evaluations of alveolar treatment, which can rapidly and accurately obtain the shape and volume of the newly formed bone. This study included helical computed tomography (CT) datasets of 20 patients who underwent alveolar bone grafting at our institute. Two observers independently measured the volume of newly formed bone in the patient’s CT images one year postoperatively, with each observer performing the measurement twice. To acquire the volume of the newly formed bone at 1 year postoperatively, the model of the newly formed bone must be constructed first. The acquisition of this model involves Boolean operations on registered preoperative and postoperative cranial 3-dimensional (3D) images. The registration of the preoperative and postoperative models is performed in MIMICS software, and the registration results can be directly confirmed layer by layer on the CT images to ensure accuracy. The mean newly formed bone ratio in this study was 39.81%±17.96%, and the mean processing time was 05:11±01:41 minutes. The intraclass correlation coefficient for bone volume measurements between the two observers was 0.999, indicating high consistency and reproducibility. This method enhances accuracy, is time-efficient, and demonstrates high reliability in evaluating postoperative bone formation.

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Influence of Preoperative Inflammatory Status on Outcomes of Alveolar Bone Grafting in Patients With Cleft Lip

Zhang,

Wang,

et al. 2024

Journal of Craniofacial Surgery

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After secondary alveolar bone grafting, the outcome of bone formation is always a problem that leads to repeat surgery. Bone formation is closely related to the inflammatory and immune status of patients. To achieve better bone formation results, this study aimed to investigate the influence of preoperative inflammatory indicators on the bone survival ratio (BSR) of secondary alveolar bone grafting. A retrospective study was conducted on 62 patients who underwent surgery by the same surgeon between January 2016 to December 2022. Demographic and laboratory data were included as independent variables. The BSR calculated from computed tomography data was included as the dependent variable. Pearson correlation analysis, Spearman correlation analysis, and multiple linear regression analysis were performed. The analysis results revealed significant correlations between BSR and preoperative inflammatory markers, including neutrophil percentage, neutrophil-to-lymphocyte ratio, lymphocyte percentage (L%), lymphocyte count, and monocyte-to-lymphocyte ratio. Multiple linear regression identified L% as an independent factor of BSR, with lower L% associated with higher BSR. Preoperative inflammatory markers may influence BSR after alveolar bone grating. A lower value of L% indicates a better postoperative bone formation outcome. Understanding these associations can aid clinicians in treatment planning and patient stratification.

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Volumetric Analysis of Unilateral Alveolar Bone Defect Using Modified Subtraction in Older Chinese Patients

Abstract: The average CFU/mL for the synthetic material was significantly lower compared with the xenograft BSs-4.43 × 10 8 and 8.20 × 10 8 , respectively.The average CFU/mL in t1 was 3.92 × 10 5 which was significantly lower than the average CFU/mL in t7-1.26 × 10 9 .

Cited by 3 publications

References 33 publications

Influence of osseous structure characteristics of unilateral alveolar cleft on outcomes of alveolar bone grafting: a retrospective study

Influence of osseous structure characteristics of unilateral alveolar cleft on outcomes of alveolar bone grafting: a retrospective study

A Concise and Accurate Method for Evaluating Alveolar Cleft Reconstruction

Influence of Preoperative Inflammatory Status on Outcomes of Alveolar Bone Grafting in Patients With Cleft Lip

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