• Title/Summary/Keyword: LeFort osteotomy

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Salvage rapid maxillary expansion for the relapse of maxillary transverse expansion after Le Fort I with parasagittal osteotomy

  • Lee, Hyun-Woo;Kim, Su-Jung;Kwon, Yong-Dae
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.41 no.2
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    • pp.97-101
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    • 2015
  • Maxillary transverse deficiency is one of the most common deformities among occlusal discrepancies. Typical surgical methods are segmental Le Fort I osteotomy and surgically-assisted rapid maxillary expansion (SARME). This patient underwent a parasagittal split with a Le Fort I osteotomy to correct transverse maxillary deficiency. During follow-up, early transverse relapse occurred and rapid maxillary expansion (RME) application with removal of the fixative plate on the constricted side was able to regain the dimension again. RME application may be appropriate salvage therapy for such a case.

COMBINED ORTHODONTIC-SURGICAL TREATMENT FOR CLASS III PATIENT WITH MIDFACIAL DEFICIENCY AND MANDIBULAR PROGNATHISM (중안면부 함몰과 하악전돌을 동반한 III 급 부정교합자의 교정-악교정수술 복합치료)

  • Cho, Eun-Jung;Kim, Jong-Tae;Yang, Won-Sik
    • The korean journal of orthodontics
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    • v.26 no.5 s.58
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    • pp.637-645
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    • 1996
  • In non-growing Class III malocclusion, the critical aspects which determine the need of orthognatic surgery are the severity of skeletal discrepancy, incisor inclination, overbile and soft tissue profile. Two-jaw surgery is more effective in correcting severe sagittal, vertical, transverse skeletal discrepancies and facial asymmetry. And more esthetic and stable profile can be achieved by two-jaw surgery Some midfacial deficiency Patients can be treated by Pyramidal Le Fort II osteotomy to maintain infraorbital rim and malar complex and to advance nasomaxillary complex. Others who require advancement of infraorbital rim and malar complex can be treated by quadrangular Le Fort II osteotomy. On the following cases, patients who had represented midfacial deficiency and mandibular prognathism were treated with combined orthodontic-surgical therapy by Le Fort II osteotomy and BSSRO.

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Treatment of Old Maxilla Fracture by Le Fort I Osteotomy (Le Fort I 골절단술을 이용한 진구성 상악골 골절의 치험 2예)

  • Park, Hyung-Sik;Kwon, Jun-Ho;Lee, Jae-Hwi
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.11 no.1
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    • pp.243-248
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    • 1989
  • This is a report of 2 cases on old maxilla fractures accompanied with sagittal palatal fracture and severe malocclusion. We treated them by using of classic Le Fort I osteotomy and modified Le Fort I osteotomy along the old fracture lines satisfactorily. The results obtained from treatment are as follows : 1. Careful examination and correct care on sagittal palatal fracture should be need during initial diagnosis and emergency care of maxilla fracture showed malocclusion. 2. Although early definite treatment of maxilla injuries is difficult due to major organ injuries associated with accident, the positive effort to induce normal occlusion is always necessary as soon as possible. 3. In the cases of malocclusion due to transverse discrepancy of maxillary dentition associated with injury as like as our cases, classic and modified Le Fort I osteotomy and rigid internal fixation were useful to correct occlusion, to ease operation and return normal functions early.

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Cranial Base Reconstruction and Secondary Frontal Advancement for Meningoencephalocele Following LeFort III Osteotomy in a Patient with Crouzon Syndrome: Case Report

  • Sungmi Jeon;Yumin Kim;Ji Hoon Phi;Jee Hyuk Chung
    • Archives of Plastic Surgery
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    • v.50 no.1
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    • pp.54-58
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    • 2023
  • Patients with Crouzon syndrome have increased risks of cerebrospinal fluid rhinorrhea and meningoencephalocele after LeFort III osteotomy. We report a rare case of meningoencephalocele following LeFort III midface advancement in a patient with Crouzon syndrome. Over 10 years since it was incidentally found during transnasal endoscopic orbital decompression, the untreated meningoencephalocele eventually led to intermittent clear nasal discharge, frontal headache, and seizure. Computed tomography and magnetic resonance imaging demonstrated meningoencephalocele in the left frontal-ethmoid-maxillary sinus through a focal defect of the anterior cranial base. Through bifrontal craniotomy, the meningoencephalocele was removed and the anterior cranial base was reconstructed with a pericranial flap and split calvarial bone graft. Secondary frontal advancement was concurrently performed to relieve suspicious increased intracranial pressure, limit visual deterioration, and improve the forehead shape. Surgeons should be aware that patients with Crouzon syndrome have the potential for an unrecognized dural injury during LeFort III osteotomy due to anatomical differences such as inferior displacement and thinning of the anterior cranial base.

Surgical correction of septal deviation after Le Fort I osteotomy

  • Shin, Young-Min;Lee, Sung-Tak;Kwon, Tae-Geon
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.38
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    • pp.21.1-21.6
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    • 2016
  • Background: The Le Fort I osteotomy is one of the most widely used and useful procedure to correct the dentofacial deformities of the midface. The changes of the maxilla position affect to overlying soft tissue including the nasal structure. Postoperative nasal septum deviation is a rare and unpredicted outcome after the surgery. There are only a few reports reporting the management of this complication. Case Presentation: In our department, three cases of the postoperative nasal septum deviation after the Le Fort I osteotomy had been experienced. Via limited intraoral circumvestibular incision, anterior maxilla, the nasal floor, and the anterior aspect of the septum were exposed. The cartilaginous part of the nasal septum was resected and repositioned to the midline and the anterior nasal spine was recontoured. Alar cinch suture performed again to prevent the sides of nostrils from flaring outwards. After the procedure, nasal septum deviation was corrected and the esthetic outcomes were favorable. Conclusion: Careful extubation, intraoperative management of nasal septum, and meticulous examination of preexisting nasal septum deviation is important to avoid postoperative nasal septum deviation. If it existed after the maxillary osteotomy, septum repositioning technique of the current report can successfully correct the postoperative septal deviation.

안모 비대칭 환자에서 편측 상악 구치부 분절 골절단술과 하악지 시상분할골절단술 및 급속 교정을 이용한 치험례

  • Yu, Jeong-Taek;Song, Seon-Heon;Kim, Su-Yong;Kim, Cheol;Park, Ji-Hun
    • The Journal of the Korean dental association
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    • v.44 no.2 s.441
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    • pp.133-138
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    • 2006
  • This is a report of one case about facial asymmetry involving maxilla & mandible. Le Fort I Maxillary Osteotomy & BSSRO is usually used for facial asymmetry patient involving maxilla & mandible. But Le Fort I Maxillary Osteotomy has demerits about more aggressive technique, more operation times, more discomforts of post operation nasal breathing than Unilateral maxillary Segmental Osteotomy. So we treated one patient successfully using Unilateral Maxillary Segmental Osteotomy, BSSRO & Post - Operation Rapid Orthodontics instead of Le Fort I Maxillary Osteotomy.

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A CASE REPORT OF SURGICAL CORRECTION OF NASOMAXILLARY HYPOPLASIA DUE TO CONGENITAL SYPHILIS BY LE FORT II OSTEOTOMY WITH CORONAL APPROACH (선천성 매독에의한 비상악골 부전증환자의 관상두피 접근법에 의한 Le Fort II 골절단술을 이용한 치험례)

  • Um, In-Woong;Kim, Chang-Soo
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.13 no.1
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    • pp.88-94
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    • 1991
  • Maxillofacial deformities are not considered to be a trouble in social life but function. So many maxillofacial plastc surgeons has made efforts to overcome these troubles and bring out more positive life. The proper proportion and shape decide esthetic quality. Lower third of face was consist with lip, cheek, mandibular lower border and mandibular angle. Widening lower third of face give a impression with muscular and recklessness. And lower and wide mandibular angle makes face square shape. Unilateral involvement cause asymmestric face. These face is considered unfavorable, especially in Korea or Japan. We prevent a number of with mandibular angle Bulging which was corrected with mandibular osteotomy or masseter myotomy.

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LOCATION OF THE DESCENDING PALATINE ARTERY IN RELATION TO THE LE FORT I OSTEOTOMY IN KOREANS (한국인에 있어서 하행구개동맥의 위치 연구 (Le Fort I형 골 절단술과 관련하여))

  • Lee, Il-Gu;Myoung, Hoon;Hwang, Soon-Jung;Seo, Byoung-Moo;Lee, Jong-Ho;Choung, Pil-Hoon;Kim, Myung-Jin;Choi, Jin-Young
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.29 no.6
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    • pp.509-512
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    • 2007
  • Purpose: The Le Fort I osteotomy is a commonly performed maxillary procedure for dentofacial deformity. One of the risks of this procedure is major hemorrhage resulting from injury to the descending palatine artery. So it is very important to know the exact position of the descending platine artery. An increased understanding of the position of this artery can minimize the intra-operative bleeding while allowing extension of the bone cuts to achieve exact positioning maxilla. The aim of this investigation was to study the position of the descending palatine artery as it relates to the Le Fort I osteotomy. Methods and patients: Total 40 patients who underwent Le Fort I osteotomy in SNUDH OMFS were studied in this study. We measured the distance from the pyriform aperture to the descending palatine artery (DPA distance) using a ruler. We investigated the relationship between DPA distance, the distance from A point to the McNamara line on lateral cephalography and the patient's body height. Results: The average distances from the pyriform rim to the descending palatine artery were 35.3 mm on the right (range: $30{\sim}40mm$) and 33.7mm (range: $30{\sim}41mm$) on the left in males. Those in females were 33.4 mm on the right (range: $28{\sim}40mm)$ and 32.8mm (range: $27{\sim}38mm$) on the left. The significances between the distance the DPA distance, the body height and the distance from A point to McNamara line were not found. Conclusion: Injury to the descending palatine artery during Le Fort I osteotomy can be minimized by not extending the osteotomy more than 30 mm posterior to the pyriform aperture in mal, and 27 mm in female.

A STUDY ON THE POSTOPERATIVE STABILITY OF LEFORT I OSTEOTOMY IN THE TWO-JAW SURGERY OF THE SKELETAL CLASS III MALOCCLUSION PATIENTS (골격성 제 III급 부정교합 환자의 상하악 동시이동술시 LeFort I 상악골절단술의 술후 안정성에 관한 연구)

  • Im, Yang-Hee;Ko, Seung-O;Shin, Hyo-Keun
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.27 no.5
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    • pp.397-403
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    • 2001
  • Purpose: The purpose of this study was to evaluate the postoperative stability of LeFort I osteotomy in two-jaw surgery of skeletal class III malocclusion and to help the establishment of treatment planning in patients with a skeletal class III malocclusion in the future. Materials and Methods: The lateral cephalograms of 14 patients who had been underwent two-jaw surgery via one-piece LeFort I osteotomy were traced and the landmarks were identified. Repeated tracings and construction of reference planes were done. Comparisons were made from the immediate postoperative to late postoperative results of each landmarks on the horizontal and vertical directions. Conclusions: 1. The horizontal changes of landmark ANS, point A, PNS and Mx6Rt between immediate postoperative to late postoperative data were statistically insignificant(p>0.05). 2. The vertical changes of landmark ANS, point A, PNS, Mx6Cr and Mx6Rt between immediate postoperative to late postoperative data were statistically insignificant(p>0.05). 3. The horizontal change of landmark Mx6Cr between immediate postoperative to late postoperative data was statistically significant(p<0.05). 4. Results showed that it was stable that one-piece LeFort I osteotomy in two-jaw surgery of skeletal class III malocclusion.

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Treatment of Long Standing Malunited Maxillary Fracture by Le Fort I Osteotomy : Case Report. (Le Fort I 골절술을 이용한 상악골 부정유합의 치료 : 증례 보고)

  • Lee, Chung-Guk;Yang, Seong-Ik
    • The Journal of the Korean dental association
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    • v.17 no.12 s.127
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    • pp.923-926
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    • 1979
  • In patient of long standing malunited maxillary fracture, maxillary osteotomy or refracture seems to be justifiable. This is a case of the patient, a 60 year old Korean female patient, presented a long-standing malunited maxillary fracture with dish-type face and functional disturbance in mouth opening. We performed upon her Le Fort I osteotomy only via labial-buccal horizontal incisions in one-stag operation. The result was good in esthetics and function.

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