Stability after inferior or anterior maxillary repositioning by Le Fort I osteotomy: a biplanar stereocephalometric study.

K. W. Gurstein, A. H. Sather, K. N. An, B. E. Larson

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

A biplanar cephalometric stereoradiographic system was used to measure maxillary positional changes during and after Le Fort I procedures for inferior or anterior repositioning of the maxilla. Of the 29 patients studied, 25 had undergone surgical maxillary advancement, and 15 had undergone inferior repositioning. These cases were divided into subgroups based on fixation technique, presence or absence of bone grafts, age, and surgeon. The postsurgical follow-up period was at least 11 months for each patient. The landmarks used to measure maxillary positional changes consisted of skeletal features and points on wire or rigid fixation devices. Mean magnitudes of postsurgical maxillary landmark displacement were insignificant for all subgroups examined except the advancement group with wire fixation. Individual patients exhibiting the greatest postsurgical displacements tended to have had large surgical advancements and received wire fixation. Magnitudes of surgical and postsurgical change did not seem correlated on the whole, except in the maxillary advancement cases in which bone grafts had not been used. Error analysis results suggest that digitizing consistency was acceptable for maxillary landmarks; however, methodologic improvements with regard to provision of cranial reference landmarks may further minimize errors in future studies.

Original languageEnglish (US)
Pages (from-to)131-143
Number of pages13
JournalThe International journal of adult orthodontics and orthognathic surgery
Volume13
Issue number2
StatePublished - 1998

Fingerprint

Le Fort Osteotomy
Cephalometry
Transplants
Bone and Bones
Maxilla
Equipment and Supplies

Cite this

Stability after inferior or anterior maxillary repositioning by Le Fort I osteotomy : a biplanar stereocephalometric study. / Gurstein, K. W.; Sather, A. H.; An, K. N.; Larson, B. E.

In: The International journal of adult orthodontics and orthognathic surgery, Vol. 13, No. 2, 1998, p. 131-143.

Research output: Contribution to journalArticle

@article{27f1dd6b488d44b1a1dbae3938b4fdf3,
title = "Stability after inferior or anterior maxillary repositioning by Le Fort I osteotomy: a biplanar stereocephalometric study.",
abstract = "A biplanar cephalometric stereoradiographic system was used to measure maxillary positional changes during and after Le Fort I procedures for inferior or anterior repositioning of the maxilla. Of the 29 patients studied, 25 had undergone surgical maxillary advancement, and 15 had undergone inferior repositioning. These cases were divided into subgroups based on fixation technique, presence or absence of bone grafts, age, and surgeon. The postsurgical follow-up period was at least 11 months for each patient. The landmarks used to measure maxillary positional changes consisted of skeletal features and points on wire or rigid fixation devices. Mean magnitudes of postsurgical maxillary landmark displacement were insignificant for all subgroups examined except the advancement group with wire fixation. Individual patients exhibiting the greatest postsurgical displacements tended to have had large surgical advancements and received wire fixation. Magnitudes of surgical and postsurgical change did not seem correlated on the whole, except in the maxillary advancement cases in which bone grafts had not been used. Error analysis results suggest that digitizing consistency was acceptable for maxillary landmarks; however, methodologic improvements with regard to provision of cranial reference landmarks may further minimize errors in future studies.",
author = "Gurstein, {K. W.} and Sather, {A. H.} and An, {K. N.} and Larson, {B. E.}",
year = "1998",
language = "English (US)",
volume = "13",
pages = "131--143",
journal = "The International journal of adult orthodontics and orthognathic surgery",
issn = "0742-1931",
publisher = "Quintessence Publishing Company",
number = "2",

}

TY - JOUR

T1 - Stability after inferior or anterior maxillary repositioning by Le Fort I osteotomy

T2 - a biplanar stereocephalometric study.

AU - Gurstein, K. W.

AU - Sather, A. H.

AU - An, K. N.

AU - Larson, B. E.

PY - 1998

Y1 - 1998

N2 - A biplanar cephalometric stereoradiographic system was used to measure maxillary positional changes during and after Le Fort I procedures for inferior or anterior repositioning of the maxilla. Of the 29 patients studied, 25 had undergone surgical maxillary advancement, and 15 had undergone inferior repositioning. These cases were divided into subgroups based on fixation technique, presence or absence of bone grafts, age, and surgeon. The postsurgical follow-up period was at least 11 months for each patient. The landmarks used to measure maxillary positional changes consisted of skeletal features and points on wire or rigid fixation devices. Mean magnitudes of postsurgical maxillary landmark displacement were insignificant for all subgroups examined except the advancement group with wire fixation. Individual patients exhibiting the greatest postsurgical displacements tended to have had large surgical advancements and received wire fixation. Magnitudes of surgical and postsurgical change did not seem correlated on the whole, except in the maxillary advancement cases in which bone grafts had not been used. Error analysis results suggest that digitizing consistency was acceptable for maxillary landmarks; however, methodologic improvements with regard to provision of cranial reference landmarks may further minimize errors in future studies.

AB - A biplanar cephalometric stereoradiographic system was used to measure maxillary positional changes during and after Le Fort I procedures for inferior or anterior repositioning of the maxilla. Of the 29 patients studied, 25 had undergone surgical maxillary advancement, and 15 had undergone inferior repositioning. These cases were divided into subgroups based on fixation technique, presence or absence of bone grafts, age, and surgeon. The postsurgical follow-up period was at least 11 months for each patient. The landmarks used to measure maxillary positional changes consisted of skeletal features and points on wire or rigid fixation devices. Mean magnitudes of postsurgical maxillary landmark displacement were insignificant for all subgroups examined except the advancement group with wire fixation. Individual patients exhibiting the greatest postsurgical displacements tended to have had large surgical advancements and received wire fixation. Magnitudes of surgical and postsurgical change did not seem correlated on the whole, except in the maxillary advancement cases in which bone grafts had not been used. Error analysis results suggest that digitizing consistency was acceptable for maxillary landmarks; however, methodologic improvements with regard to provision of cranial reference landmarks may further minimize errors in future studies.

UR - http://www.scopus.com/inward/record.url?scp=0031609074&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031609074&partnerID=8YFLogxK

M3 - Article

C2 - 1998131138

AN - SCOPUS:0031609074

VL - 13

SP - 131

EP - 143

JO - The International journal of adult orthodontics and orthognathic surgery

JF - The International journal of adult orthodontics and orthognathic surgery

SN - 0742-1931

IS - 2

ER -