TY - JOUR
T1 - An internal distraction device for le Fort distraction osteogenesis
T2 - The NAVID system
AU - Nakajima, Hideo
AU - Sakamoto, Yoshiaki
AU - Tamada, Ikkei
AU - Ohara, Hirotoshi
AU - Kishi, Kazuo
PY - 2012/1
Y1 - 2012/1
N2 - Le Fort distraction osteogenesis is sometimes applied to improve the facial appearance in craniofacial dysostosis or cleft lip and palate. Distraction devices are generally classified into external and internal types. The movement of external distractors can be controlled easily but their large size and the need for a facial mask cause much psychological stress to the patient. Internal distractors are smaller and better tolerated, but they are not easily controllable and removal is difficult. We designed an internal distraction device to eliminate the problems of the currently available distractors -Nakajima's angle-variable internal distraction (NAVID) system - and aimed to assess its clinical applicability. Between 2000 and 2010, we treated 16 patients with the NAVID system: Le Fort I, III, III + I and IV distractions were performed in three, five, four and four patients, respectively. Distraction was started after a 1-week latency period. Then, the exposed rod was cut, and the distractors were left in place for 3 months or more as retention devices, and thereafter removed. All patients showed satisfactory occlusion and facial aesthetics. Open bite during the consolidation period was the main complication. In conclusion, the NAVID system is safe, effective and reliable for all types of Le Fort distraction osteogenesis.
AB - Le Fort distraction osteogenesis is sometimes applied to improve the facial appearance in craniofacial dysostosis or cleft lip and palate. Distraction devices are generally classified into external and internal types. The movement of external distractors can be controlled easily but their large size and the need for a facial mask cause much psychological stress to the patient. Internal distractors are smaller and better tolerated, but they are not easily controllable and removal is difficult. We designed an internal distraction device to eliminate the problems of the currently available distractors -Nakajima's angle-variable internal distraction (NAVID) system - and aimed to assess its clinical applicability. Between 2000 and 2010, we treated 16 patients with the NAVID system: Le Fort I, III, III + I and IV distractions were performed in three, five, four and four patients, respectively. Distraction was started after a 1-week latency period. Then, the exposed rod was cut, and the distractors were left in place for 3 months or more as retention devices, and thereafter removed. All patients showed satisfactory occlusion and facial aesthetics. Open bite during the consolidation period was the main complication. In conclusion, the NAVID system is safe, effective and reliable for all types of Le Fort distraction osteogenesis.
KW - Apert syndrome
KW - Cleft lip
KW - Crouzon syndrome
KW - Distraction osteogenesis
KW - Internal distraction device
KW - Le Fort
KW - Midface hypoplasia
UR - http://www.scopus.com/inward/record.url?scp=82955195394&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=82955195394&partnerID=8YFLogxK
U2 - 10.1016/j.bjps.2011.08.009
DO - 10.1016/j.bjps.2011.08.009
M3 - Article
C2 - 21890441
AN - SCOPUS:82955195394
SN - 1748-6815
VL - 65
SP - 61
EP - 67
JO - Journal of Plastic, Reconstructive and Aesthetic Surgery
JF - Journal of Plastic, Reconstructive and Aesthetic Surgery
IS - 1
ER -