Use of ultrasound to assess healing of a mandibular distraction wound

Thurmüller, Petra; Troulis, Maria J.; O’Neill, Margaret; Kaban, Leonard B.

doi:10.1053/joms.2002.34417

Cited by 37 publications

(33 citation statements)

References 23 publications

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“…In Group 2 (three physician ultrasonographers), the hemimandibles (10 per evaluator) were rated as being of high (11), moderate (12), and low (7) translucency. Table 2 shows the distribution of answers given by dental radiologists and physician ultrasonographers to Question 2.…”

Section: Resultsmentioning

confidence: 99%

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Ultrasound evaluation of intra-osseous cavity: A preliminary study in pig mandibles

Ferreira

Costa

Tucunduva

et al. 2016

Journal of Oral Biology and Craniofacial Research

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Section: Resultsmentioning

confidence: 99%

“…Some authors report that ultrasound has limitations for bone tissue examination, 12 pointing that the ultrasound waves are reflected to the transducer because cannot pass through this tissue. However, they agree that the bone cortex could be examined provided that it could have some alteration (e.g.…”

Section: Discussionmentioning

confidence: 99%

Ultrasound evaluation of intra-osseous cavity: A preliminary study in pig mandibles

Ferreira

Costa

Tucunduva

et al. 2016

Journal of Oral Biology and Craniofacial Research

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“…Before the development of a new cortical layer, the US beam is not reflected and can easily penetrate into the distraction gap. In such an echolucent window, new bone apposition can be identified as small echogenic islands appearing during the first week of neutral fixation in the inner portion of the osteotomy, progressively increasing in volume and coalescing and finally leading to a sharp decrease in ultrasound beam penetration depth [24]. The final event of bone regeneration is the formation of an outer cortical layer, which requires 30-80 days of neutral fixation [24] and is demonstrated at US by the onset of a beam-reflecting hyperechoic surface, not distinguishable-except for its margins-from the adjacent native bone; in the posterior acoustic shadowing, no artifactual reverberation echoes are detected, which allows differentiation of the new bony surface from oral gas.…”

Section: Discussionmentioning

confidence: 99%

Gray-scale ultrasonography in the evaluation of bone callus in distraction osteogenesis of the mandible: initial findings

et al. 2008

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The accuracy of panoramic radiography (RX) and ultrasound (US) in the evaluation of both the length of the osteotomic gap and the quality of new bone formation in patients undergoing mandibular distraction osteogenesis (DO) was assessed, verifying the results against intraoperative and histologic findings. In 31 patients, three RX and three US examinations were performed after DO. RX and US findings were each independently compared, at the time of distractor removal, to the direct intraoperative measurement of the osteotomic gap and to the histologic evaluation of the maturity of a resected specimen. No significant differences (P>0.1) resulted at any step between RX (average length: 18.19 mm) and US (18.29 mm) measurement of the osteotomic gap. In the assessment of the callus maturity the difference between RX and US (P<0.001) was statistically significant: at the final control the maturity score averaged 0.612 at RX, 3 at US and 3 at histology. RX and US are equally reliable in the measurement of the osteotomic gap, while US is much more accurate than RX in the evaluation of the callus maturity. US-based follow-up might allow a safe shortening of the fixation period.

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“…Osseous response to indwelling screws was evaluated in specimens from two animal models (Schulten et al, 2002;Thurmü ller et al, 2002). These screws were intended to support distraction devices and to provide neutral fixation after the distraction period.…”

Section: Discussionmentioning

confidence: 99%

Osteoclastic bone resorption around intraosseous screws in rat and pig mandibles

Schulten

Zimmermann

Glowacki

2003

Microscopy Res & Technique

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This report describes osteoclastic bone resorption around intraosseous fixation screws in rat and pig mandibles. These screws supported distraction devices and provided for neutral fixation following the distraction period. Progressive clinical instability of bicortical screws and radiographic and histologic evidence of osseous resorption were frequent findings. In rats, clinical evaluation revealed screw loss and/or loosening in 50% of the rats between 11 and 30 days of neutral fixation. Radiographic signs of resorption were apparent around 60% of the screws that were in place at the end of the observation period. The total rate of resorption or loss was 64 of 80 screws (80%). Histologic examination showed partial or extensive osteolysis around the screw holes in 87% of screws that were clinically fixed in the bone at sacrifice. In histologic sections of porcine specimens, osseous resorption around identifiable screw holes was present in 75% of the cases, and showed progressive increase in resorption with time. Osteoclastic resorption was common around bicortical screws that were evaluated after they had served for osseous stability.

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Use of ultrasound to assess healing of a mandibular distraction wound

Cited by 37 publications

References 23 publications

Ultrasound evaluation of intra-osseous cavity: A preliminary study in pig mandibles

Ultrasound evaluation of intra-osseous cavity: A preliminary study in pig mandibles

Gray-scale ultrasonography in the evaluation of bone callus in distraction osteogenesis of the mandible: initial findings

Osteoclastic bone resorption around intraosseous screws in rat and pig mandibles

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