Skeletal stability following mandibular advancement and rigid fixation with polylactide biodegradable screws.

Abstract:

:Skeletal stability during the first year after mandibular advancement surgery and fixation using biodegradable self-reinforced poly-l-lactide (SR-PLLA) screws, without postoperative intermaxillary fixation, was studied in 25 patients by means of cephalometric measurements. The magnitude of advancement was on average, 3.88 mm at pogonion (PG) (range 1.25-6.5 mm) and 4.57 mm at B-point (range 2.75-7.5 mm). After one year a mean relapse backwards of 0.59 mm at the PG (15%) and 0.78 mm at the B-point (17%) was observed. Nineteen patients (76%) and 17 patients (68%) were stable at PG and B-point, respectively. SR-PLLA screws are considered to be comparable to other forms of rigid internal fixation for fixation of bilateral splitting osteotomies after mandibular advancement, as far as skeletal stability is concerned.

authors

Kallela I,Laine P,Suuronen R,Iizuka T,Pirinen S,Lindqvist C

doi

10.1016/s0901-5027(98)80086-6

subject

Has Abstract

pub_date

1998-02-01 00:00:00

pages

3-8

issue

1

eissn

0901-5027

issn

1399-0020

journal_volume

27

pub_type

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