Comparison of the Accuracy of Maxillary Positioning With Interim Splints Versus Patient-Specific Guides and Plates in Executing a Virtual Bimaxillary Surgical Plan

Jones, Jason P.; Amarista, Felix Jose; Jeske, Nathaniel Aaron; Szalay, David; Ellis, Edward

doi:10.1016/j.joms.2022.01.006

Cited by 14 publications

(12 citation statements)

References 28 publications

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“…The number of patients ranged from 4 to 82 [ 39 , 40 ]. Two of the records used the same cohort as part of a study performing different accuracy measurements [ 29 , 30 ].…”

Section: Resultsmentioning

confidence: 99%

“…Sixteen records evaluated the accuracy of PSI for the maxilla [ 13 , 31 , 32 , 33 , 34 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 ], out of which eight exclusively focused on non-segmental Le Fort I procedures [ 31 , 32 , 34 , 36 , 38 , 43 , 45 , 46 ] and two on non-segmental Le Fort I procedures in conjunction with the accuracy of PSI for mandibular osteotomies [ 13 , 39 ]. Six studies included mixed single and segmental Le Fort I osteotomies [ 33 , 37 , 40 , 41 , 42 ]. One of the included studies investigated exclusively segmental Le Fort I osteotomies [ 44 ].…”

Section: Resultsmentioning

confidence: 99%

“…Some of the included records could not be included in the meta-analysis due to the following reasons: the relevant data from one study were redundant [ 38 ] because it originated in a cohort that was already included in the meta-analysis [ 34 ]; five records had mixed results from single and segmental Le Fort I procedures [ 33 , 37 , 40 , 41 , 42 ].…”

Section: Resultsmentioning

confidence: 99%

“…Five studies reported the PSI accuracy on cohorts containing mixed single and segmental Le Fort I osteotomies [ 33 , 37 , 40 , 41 , 42 ], respectively. The main findings of these studies were below the clinically relevant thresholds of 2 mm of translational deviation and 4° rotational deviation.…”

Section: Resultsmentioning

confidence: 99%

“…Jones et al reported, on a cohort of 82 patients, that repositioning of the maxilla with PSI versus CAD/CAM splints resulted in a smaller mean error for PSI, which was statistically significant for lateral and vertical movements and incisor angulation [ 40 ]. Furthermore, statistically significant differences were reported for the sagittal movement of the UI between cranial and caudal repositioning of the maxillae in the PSI group, with upward movement affecting the sagittal position of the UI less ( p = 0.02) [ 40 ].…”

Section: Resultsmentioning

confidence: 99%

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Three-Dimensional Accuracy and Stability of Personalized Implants in Orthognathic Surgery: A Systematic Review and a Meta-Analysis

Diaconu¹,

Holte

Berg‐Beckhoff

et al. 2023

JPM

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This systematic review aimed to determine the accuracy/stability of patient-specific osteosynthesis (PSI) in orthognathic surgery according to three-dimensional (3D) outcome analysis and in comparison to conventional osteosynthesis and computer-aided designed and manufactured (CAD/CAM) splints or wafers. The PRISMA guidelines were followed and six academic databases and Google Scholar were searched. Records reporting 3D accuracy/stability measurements of bony segments fixated with PSI were included. Of 485 initial records, 21 met the eligibility (566 subjects), nine of which also qualified for a meta-analysis (164 subjects). Six studies had a high risk of bias (29%), and the rest were of low or moderate risk. Procedures comprised either single-piece or segmental Le Fort I and/or mandibular osteotomy and/or genioplasty. A stratified meta-analysis including 115 subjects with single-piece Le Fort I PSI showed that the largest absolute mean deviations were 0.5 mm antero-posteriorly and 0.65° in pitch. PSIs were up to 0.85 mm and 2.35° more accurate than conventional osteosynthesis with CAD/CAM splint or wafer (p < 0.0001). However, the clinical relevance of the improved accuracy has not been shown. The literature on PSI for multi-piece Le Fort I, mandibular osteotomies and genioplasty procedure is characterized by high methodological heterogeneity and a lack of randomized controlled trials. The literature is lacking on the 3D stability of bony segments fixated with PSI.

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“…The number of patients ranged from 4 to 82 [ 39 , 40 ]. Two of the records used the same cohort as part of a study performing different accuracy measurements [ 29 , 30 ].…”

Section: Resultsmentioning

confidence: 99%