Stability of maxillary position after Le Fort I osteotomy using self-reinforced biodegradable poly-70L/30DL-lactide miniplates and screws.

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Citation: JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY, Vol.69(5) : 1442-1446, 2011

MeSH: Absorbable Implants* ; Bone Plates* ; Bone Screws* ; Cephalometry ; Dental Occlusion ; Female ; Follow-Up Studies ; Frontal Bone/diagnostic imaging ; Humans ; Male ; Mandible/surgery ; Maxilla/diagnostic imaging ; Maxilla/surgery* ; Nasal Bone/diagnostic imaging ; Occipital Bone/diagnostic imaging ; Orthognathic Surgical Procedures/instrumentation ; Orthognathic Surgical Procedures/methods ; Osteotomy/methods ; Osteotomy, Le Fort/instrumentation* ; Palate/diagnostic imaging ; Polyesters/chemistry* ; Postoperative Complications ; Radiography ; Skull Base/diagnostic imaging ; Treatment Outcome ; Young Adult

Abstract: PURPOSE: The purpose of this study was to evaluate the stability of Le Fort I osteotomy using self-reinforced biodegradable poly-70L/30DL-lactide miniplates and screws.

PATIENTS AND METHODS: Nineteen patients who had Le Fort I osteotomy and internal fixation using self-reinforced biodegradable poly-70L/30DL-lactide miniplates and screws were evaluated both radiographically and clinically. Changes in maxillary position after operation were documented 1 week, 1, 3, 6 mo, and/or 1-yr postoperatively with lateral cephalometric tracings. Complications of the self-reinforced biodegradable poly-70L/30DL-lactide miniplates and screws were evaluated by follow-up roentgenograms and clinical observation. A mixed model analysis for repeated measures was used for statistical analysis.

RESULTS: Maxillary position was stable after operation with no change between time points (P > .05). There were no complications with the self-reinforced biodegradable poly-70L/30DL-lactide miniplates and screws.

CONCLUSIONS: Internal fixation of the maxilla after Le Fort I osteotomy with self-reinforced biodegradable poly-70L/30DL-lactide miniplates and screws is a reliable method for maintaining the postoperative maxillary position after Le Fort I osteotomy.

Full Text: http://www.sciencedirect.com/science/article/pii/S027823911000577X

Appears in Collections:: 2. College of Dentistry (치과대학) > Dept. of Oral and Maxillofacial Surgery (구강악안면외과학교실) > 1. Journal Papers

Yonsei Authors: Kim, Bong Chul(김봉철)
Park, Hyung Sik(박형식)
Jung, Young Soo(정영수) https://orcid.org/0000-0001-5831-6508

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