The value of bone scanning in pre-operative decision-making in patients with progressive facial asymmetry

Bohuslavizki, K. H.; Brenner, Winfried; Kerscher, A.; Fleiner, B; Tinnemeyer, S.; Sippel, C.; Wolf, Helmut K.; Clausen, M.; Henze, Eberhard

doi:10.1097/00006231-199607000-00005

Cited by 21 publications

(12 citation statements)

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“…Subsequently, other investigators reported studies on normal and various abnormalities of the mandibular joints. The two condyles were evaluated using two lateral views necessitating normalizing the isotope deposit to a common vertebrae 4,10 , or else using the unaffected condyle as the reference anatomy 1,5,7,13,17 . Studies from planar bone scans have some limitations due to superimposition of the condyles with the petrous bone and mastoid process in the anteroposterior view, and overlapping with one another in the lateral view.…”

Section: Discussionmentioning

confidence: 99%

“…Although the percentage differences of the three parameters correlated with each other, the cut-off point for discrimination still varied for each parameter. Previous studies 1,4,8,10,14,17 used differences between condylar uptake in normal jaws as a cut-off point to determine if condylar growth in the asymmetric condyle had ceased. This may underestimate the growth status in unilateral hyperplasia because, even when bone growth has ceased, the abnormal site may be enlarged and hence give a larger unequal isotope uptake.…”

Section: Discussionmentioning

confidence: 99%

“…A corrective osteotomy performed after cessation of bone growth is likely to be stable; otherwise there is a potential for the deformity to recur. In cases of persistent growth associated with progressive facial asymmetry, interceptive surgery to remove the hyperplastic condyle by high condylectomy may help to limit the deformity 1,7,8,17 . Therefore, condylar growth assessment is crucial for the timing of surgery.…”

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confidence: 99%

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The use of SPECT to evaluate growth cessation of the mandible in unilateral condylar hyperplasia

Pripatnanont

Vittayakittipong

Markmanee

et al. 2005

International Journal of Oral and Maxillofacial Surgery

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In unilateral condylar hyperplasia, for surgical intervention to be effective, the status of condylar bone growth has to be assessed correctly. Previously this assessment relied on serial clinical observations. This study aimed to evaluate the MDP-SPECT method of assessing condylar growth in unilateral condylar hyperplasia. Twenty-six MDP-SPECT of the mandible had been performed; 21 were diagnosed as condylar hyperplasia and five as non-mandibular disease. Three isotope parameters: isotope counts, pixel counts and counts per pixel were summed for each condyle per subject. The percentage difference in isotope uptake of the three parameters between the two condyles was calculated as the ratio of the combined counts of the two sides. These differences significantly correlated with each other (Pearson r=0.78-0.98) and with the clinical status of bone growth (Spearman rho=0.72-0.86). There was a significant difference for the count per pixel between the 'growing' condyle (transaxial, T: 15.05+/-7.14, coronal, C: 12.29+/-7.88), the 'no further growth' condyle (T: 5.22+/-4.08, C: 5.67+/-3.88) and the 'normal' condyle (T: 0.82+/-0.76, C: 1.34+/-0.66). This method was able to separate 'active growth' from 'growth cessation' of the condyle by a single MDP-SPECT of the mandible. However, further studies are needed to confirm this finding.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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confidence: 99%

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The use of SPECT to evaluate growth cessation of the mandible in unilateral condylar hyperplasia

Pripatnanont

Vittayakittipong

Markmanee

et al. 2005

International Journal of Oral and Maxillofacial Surgery

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“…Seven studies 1,9,11,12,22,25,29 presented results in enough detail (i.e. number of patients with presence/absence of UCH and number of abnormal and normal bone scan results) to calculate the index test characteristics (i.e.…”

Section: Bone Scintigraphic Studies Of Patients With Facial Asymmetrymentioning

confidence: 99%

Bone scintigraphy as a diagnostic method in unilateral hyperactivity of the mandibular condyles: a review and meta-analysis of the literature

Saridin

Raijmakers

Tuinzing

et al. 2011

International Journal of Oral and Maxillofacial Surgery

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“…It has been reported that a difference in uptake of 55% : 45% or more between the affected and healthy condyles can be indicative of CH because the affected condyles had a relative uptake of 55% or more. 9 Treatment depends on the degree of severity and the status of condylar growth. Different surgical options have been proposed such as high condylectomy, orthognathic surgery, or both.…”

Section: Introductionmentioning

confidence: 99%

Short- and Long-Term Evaluation of a Condylar Hyperplasia: A Case Report

Nevzatoğlu¹,

Koc²,

Alcan³

et al. 2013

Turkish Journal of Orthodontics

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Objective: This case report presents the diagnosis and short-and long-term treatment results of an orthodontically and surgically treated patient with condylar hyperplasia. Materials and Methods: Condylar hyperplasia was diagnosed in an 18-year-old patient. In the clinical and radiologic examination, asymmetrical face, overdevelopment of the head and lengthening of the neck of the right condyle, deviation of the menton to the opposite side, temporomandibular joint pain, occlusal canting, slight open bite in the affected side, and an impacted upper right premolar were detected. Technetium-99 radioisotope scanning was made in 6-month intervals, and surgery was planned and performed. Changes were measured on the cephalograms taken at the beginning of orthodontic treatment, before and after surgery, at the end of fixed treatment, and in 4 years 6 months follow-up period. Results: Skeletal and dental Class I relationship was established and the profile improved. Slight increase of the vertical dimension was observed in the finishing and follow-up cephalograms. Conclusion: In order to decide the appropriate time for surgery for condylar hyperplasia patients in which osteoblastic activity continues, isotope-scanning examination is a must. Short-term results achieved with the orthodontic and surgical treatment were satisfactory and were maintained in the long term. (Turkish J Orthod 2013;26:103-113)

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The value of bone scanning in pre-operative decision-making in patients with progressive facial asymmetry

Cited by 21 publications

References 0 publications

The use of SPECT to evaluate growth cessation of the mandible in unilateral condylar hyperplasia

The use of SPECT to evaluate growth cessation of the mandible in unilateral condylar hyperplasia

Bone scintigraphy as a diagnostic method in unilateral hyperactivity of the mandibular condyles: a review and meta-analysis of the literature

Short- and Long-Term Evaluation of a Condylar Hyperplasia: A Case Report

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