Basic and patient-oriented researchComplications in Transpalatal Distraction Osteogenesis: A Retrospective Clinical Study
Section snippets
Patients and Methods
A group of 73 consecutive patients (27 male and 46 female) underwent bone-borne SARPE for maxillary expansion in 3 centers between April 2000 and August 2007. Surgery was performed in a residency training program under supervision of the attending surgeon. The mean age was 28 years (range: 9 to 59 years). Sixty-seven patients had bilateral maxillary widening. Six patients underwent unilateral bone-borne SARPE, mainly to correct unilateral crossbite. Four patients underwent simultaneous
Medical File Analysis
A problem occurred in 27 cases during the distraction phase in the initial group (n = 73). Most of the problems were hardware-related. In 12 cases, the TPD-module showed signs of loosening, dislocation, or other dysfunction and could be mended without surgical intervention. In 6 patients, a fixation screw was lost or replaced without any consequences. In 1 patient, the module could not be activated by the patient and initial distraction was performed under local anesthesia due to pain that was
Discussion
The objective of this study was to investigate any difficulties during bone-borne SARPE. Problems were considered minor and did not interfere with the final result nor necessitated additional intervention. Obstacles (asymmetrical distraction and instable occlusion postdistraction) that required surgical intervention (Le Fort I osteotomy) were of the most concern. The incidence of problems was comparable to that of the group of Neyt.1 The treatment had to be postponed. The obstacles group also
Acknowledgments
We kindly express our gratitude to Dr M.Y. Mommaerts (St Jan Hospital, Bruges, Belgium) for his valuable contribution to the bone-borne SARPE technique and his clinical assistance for the implementation in our hospital.
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