Ultrasound Monitoring of Distraction Wound

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Ultrasound Monitoring of Distraction Wound

R. Sathyanarayanan: Ultrasound Monitoring of Distraction Wound. Mal. J. Oral Maxillofac. Surg. 2012; 10: 9–12.

Abstract: Introduction: Ultrasound has been shown to be a noninvasive efficient and inexpensive way to evaluate distraction wound healing. Other methods include clinical examination, plain radiographs, computed tomography, dual energy x-ray absorptiometry (DEXA). These techniques are expensive and obligate the patient to serial radiation exposure. The purpose of this study was to confirm the feasibility of ultrasound to evaluate mandibular distraction wound.

Materials and Methods: Distraction devices were placed via submandibular incision in ten patients. The protocol consisted of 5 day latency and distraction rates of 1mm/day. Ultrasound and radiographs were used to evaluate the distraction wound during third and fifth week of fixation.

Results: Plain radiographs taken during third and fifth week of fixation showed that desired gap was achieved and maintained. Ultrasound showed regions of new bone formation in the distraction wound.

Conclusion: The result of the present study indicates that ultrasound is potentially useful for the assessment of bone formation in distraction wound which favours early removal of the distractor rather than waiting till the plain radiographs reveal new evidence of bone formation.