Demographic features in Unilateral Condylar Hyperplasia: An overview of 309 asymmetric cases and presentation of an algorithm

Nolte, J.W.; Schreurs, Ruud; Karssemakers, L.H.E.; Tuinzing, D.B.; Becking, A.G.

doi:10.1016/j.jcms.2018.06.007

Cited by 26 publications

(27 citation statements)

References 23 publications

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“…Based on the phenotypic characteristics of patients in the HH and HE groups, one would expect to see maxillary deformities especially in the patients of the HH group. In our studies we found maxillary deformities especially in the HE and hybrid group of patients 18,34 , as compensatory maxillary alveolar growth is especially seen in those patients 9,12,17 . The mandibular dental midline shift itself may not be the cause of persistent dentofacial deformities after HC, but the compensatory maxillary alterations are.…”

Section: Discussionsupporting

confidence: 57%

“…Multiple treatment protocols for facial asymmetry induced by unilateral condylar hyperactivity have been published, matching the great diversity in morphological presentation 16 . These comprise (1) singlestage OS after cessation of condylar growth, (2) high or proportional condylectomy followed by orthodontic treatment, (3) high or proportional condylectomy followed by secondary OS after a follow-up period, and (4) single-stage combined condylectomy and OS 17,18 . A condylectomy aims to arrest condylar overgrowth and stabilize the dentofacial deformity, but it may even correct the amount of transverse mandibulofacial asymmetry.…”

Section: Discussionmentioning

confidence: 99%

“…The two-stage treatment, with a HC first and secondary OS at a later stage (if necessary), has proven its efficacy 6,18,23,24 . The HC is performed routinely by some authors, while others avoid it due to possible functional problems afterwards 25 .…”

Section: Discussionmentioning

confidence: 99%

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The need for secondary orthognathic surgery after high condylectomy in patients with active unilateral condylar hyperplasia

Aerden¹,

Verstraete²,

Politis³

2022

International Journal of Oral and Maxillofacial Surgery

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The need for secondary orthognathic surgery (OS) after a high condylectomy (HC) in patients with active unilateral condylar hyperplasia was assessed in 25 patients, reviewing patient characteristics and treatment planning. At 6-12 months after HC, 13 patients (52%) required secondary OS. The amount of mandibular dental midline shift before the HC (P = 0.037), and a dental crossbite that was present before the HC (P = 0.017) were significantly associated with the need for secondary OS. Overall, the mandibular dental midline coincided with the facial midline in eight patients (32%) at 2 weeks after HC. In 16% of the patients, no additional OS was needed despite this being the initial treatment plan. Additionally, the initially planned type of secondary OS was modified in six other patients. Early HC in skeletally immature patients provided very good results, both aesthetic and functional, with only two of them needing supplementary OS at 6-12 months after HC. The HC remains a valuable treatment in patients with active unilateral condylar hyperplasia, as it can eliminate the need for secondary OS and is very well tolerated by most patients.

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Section: Discussionsupporting

confidence: 57%

Section: Discussionmentioning

confidence: 99%

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The need for secondary orthognathic surgery after high condylectomy in patients with active unilateral condylar hyperplasia

Aerden¹,

Verstraete²,

Politis³

2022

International Journal of Oral and Maxillofacial Surgery

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“…A difference in percentage uptake between condyles = or >10% was interpreted as a positive result indicating active pathology [ 3 ].…”

Section: Materials and Methods/patientsmentioning

confidence: 99%

“…Condylar hyperplasia (CH) is a progressive and self-limiting pathology affecting the mandibular condyle growth and compromising the temporomandibular joint (TMJ) anatomy [ 1 , 2 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

SPECT/CT Correlation in the Diagnosis of Unilateral Condilar Hyperplasia

et al. 2021

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Objective: To evaluate the correlation between metabolic bone activity measured by single photon emission computed tomography (SPECT) and the anatomic condylar characteristics acquired by computed tomography (CT), in patients with unilateral condylar hyperplasia (UCH). Method and Materials/Patients: Observational, descriptive study in a group of 71 patients with clinical diagnosis of UCH and indication of SPECT/CT. Bone SPECT images obtained in a gamma-camera GE Infina and processed in a station Xeleris 3 with the program Volumetrix MI Evolution for bone. CT images acquired in a PET/CT Biograph mcT20 equipment (Siemens) processed in a station Osirix V 7.5.1 (Pixmeo, Bomex, Switzerland). Results: The sample included 24 men (33.8%) and 47 women (66.2%). Active state UCH was detected in 40 (56.3%) cases (over 55% uptake in the affected condyle) and 38 (53.5%) presented mandibular deviation to the right side. No significant differences related to sex, age, or mandibular deviation side were found. Mandibular deviation was the only morphologic feature related to active/inactive UCH (p = 0.003). The likelihood of active CH was significantly higher in patients with mandibular deviation higher than 6 mm compared with <6 mm (odds ratio (OR): 3.51, confidence interval (CI) 95%: 1.27–9.72). Conclusion: There is a significant correlation between the magnitude of mandibular deviation quantified on CT and metabolic findings obtained by SPECT in patients with UCH. The risk of active UCH is 3.5 times higher in patients with a mandibular deviation =>6 mm.

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SPECT/CT in Condylar Hyperplasia

Strobel¹

2023

Clinical Atlas of Bone SPECT/CT

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Demographic features in Unilateral Condylar Hyperplasia: An overview of 309 asymmetric cases and presentation of an algorithm

Cited by 26 publications

References 23 publications

The need for secondary orthognathic surgery after high condylectomy in patients with active unilateral condylar hyperplasia

The need for secondary orthognathic surgery after high condylectomy in patients with active unilateral condylar hyperplasia

SPECT/CT Correlation in the Diagnosis of Unilateral Condilar Hyperplasia

SPECT/CT in Condylar Hyperplasia

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