Management of condylar resorption before or after orthognathic surgery: A systematic review

He, Ze; Ji, Hua; Du, Wen; Xu, Chao; Luo, En

doi:10.1016/j.jcms.2019.03.012

Cited by 20 publications

(58 citation statements)

References 38 publications

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“…After the removal of duplicates, 1036 articles were submitted to reading of titles and abstracts and 11 articles were selected for full-text analysis. 6,7,10,11,19,21,22,28,29,30,31 The Kappa coefficients for agreement regarding the pre-selection of articles based on the analysis of the titles and abstracts was 1.0 for all three databases, which according to Landis and Koch, demonstrates a high level of agreement. 25 After the full-text analysis, six articles were excluded for not having data available to compare condylar resorption in bimaxillary surgery vs. mandibular surgery alone.…”

Section: Resultsmentioning

confidence: 79%

“…25 After the full-text analysis, six articles were excluded for not having data available to compare condylar resorption in bimaxillary surgery vs. mandibular surgery alone. 7,10,11,21,29,32 Hence, five systematic reviews were selected for qualitative analysis. 6,19,22,30,31 Figure displays the article selection process.…”

Section: Resultsmentioning

confidence: 99%

“…as extrinsic factors associated with the type and characteristics of the surgery. 3,6,7,8,9,10,11 Excessive CR can result in changes in condylar shape, with the loss of condylar height and skeletal relapse, leading to the reestablishment of the pre-surgical condition or even a worse condition. 3,5,12 Studies report that CR is clearly identifiable after 12 months of follow-up, although it can occasionally be observed in a shorter period of time.…”

Section: Introductionmentioning

confidence: 99%

“…1,2,6,18,19 Studies and systematic reviews have established that, although CR is not a frequent condition, it is associated with the t ype of orthog nathic surgery. 5,7,8,11,13,18,20,21,22 In mandibular surgery alone, such as bilateral sagittal split osteotomy, an unexpected torque effect can occur on the condylar surface due to the rotation effect of the mandibular ramus. Likewise, changes in the condyle position could generate excessive pressure on the condylar morphology, causing reabsorption and skeletal relapse.…”

Section: Introductionmentioning

confidence: 99%

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Incidence of condylar resorption after bimaxillary, Lefort I, and mandibular surgery: an overview

2021

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The aim of the present overview was to evaluate the outcomes of systematic reviews to determine the incidence of condylar resorption in patients submitted to orthognathic surgery and analyze whether the risk of developing this condition is related to a specific type of surgery. Searches were conducted in the PubMed/MEDLINE, Embase, and Cochrane electronic databases for systematic reviews with quantitative data on condylar resorption due to any type of orthognathic surgery for dentoskeletal deformities published up to May 25, 2019. The AMSTAR 2 and Glenny tools were applied for the quality appraisal. Five systematic reviews were included for analysis. Only one article was considered to have high quality. Among a total of 5128 patients, 12.32% developed condylar resorption. From those patients, 70.1% had double jaw surgery, 23.4% had mandibular surgery alone, and in 6.5% a Lefort I technique was used. Based on these findings, bimaxillary surgery could be considered a risk factor for condylar resorption. However, these results should be interpreted with caution, since other factors, such as preoperative skeletal deformities, type of movement, and type of fixation, can contribute to the development of this condition. Further studies should consider reporting main cephalometric data, temporomandibular diagnosis, hormonal levels, and tomographic measures before and after the surgery at least every 6 months during the firsts two years to identify accurately risk factors for condylar resorption.

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Section: Resultsmentioning

confidence: 79%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Incidence of condylar resorption after bimaxillary, Lefort I, and mandibular surgery: an overview

2021

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“…The primary one could be referred to as idiopathic resorption of a progressive nature with unknown etiology. While the secondary type represents condylar resorption, which has definite local or systemic pathogenic factors [3,4].…”

Section: Introductionmentioning

confidence: 99%

Literature Review of the Concepts of Condylar Resorption, Incidences during Orthodontic and after Orthognathic Surgery and Treatment Measures

Alrezami¹,

Pu²

2021

Int J Dent Oral Health

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Condylar resorption and its incidence at an early age or after orthognathic surgery are well-documented issues, but it is associated with high controversies regarding its etiology and management. Lack of clear understanding of its pathogenies and the limitation of the available evidence inherited for the development of a systematic treatment approach and most previous studies recommended further investigation of the problem. This review aims to cover the problem of condylar resorption and its association with orthodontic and orthognathic surgery as well as to discuss the prospective treatment measure available through the literature. According to the available literature, most previous studies covered the condylar resorption of this type of patient (skeletal class II with high mandibular plane angle) following the orthognathic surgery. However, no studies investigated the long-term condition of the condyles of the involved patient before the surgery. Furthermore, there is no evidence for the orthodontic management of this challenging condition, and most recommendations come from case reports. So, it is crucial to assess the changes that happened to the condyle during the preoperative orthodontic and correlate the finding with what happened after the surgery to provide clear evidence that may help further understand the problem of condylar resorption. This evidence could be beneficial for both patients and clinicians. CT or CBCT images have been regarded as the best choice of detailed diagnosis and investigation of condylar resorption. The incidence of condylar resorption after orthognathic surgery with or without disc repositioning of skeletal class II with high mandibular plane angle is extremely suspected. However, artificial joint replacement is considered a gold standard treatment measure in severe or relapsed cases.

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Mandibular stability and condylar changes following orthognathic surgery in mandibular hypoplasia patients associated with preoperative condylar resorption

et al. 2022

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Management of condylar resorption before or after orthognathic surgery: A systematic review

Cited by 20 publications

References 38 publications

Incidence of condylar resorption after bimaxillary, Lefort I, and mandibular surgery: an overview

Incidence of condylar resorption after bimaxillary, Lefort I, and mandibular surgery: an overview

Literature Review of the Concepts of Condylar Resorption, Incidences during Orthodontic and after Orthognathic Surgery and Treatment Measures

Mandibular stability and condylar changes following orthognathic surgery in mandibular hypoplasia patients associated with preoperative condylar resorption

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