Biodegradable polylactide plates and screws in orthognathic surgery: technical note.
Abstract
In orthognathic surgery, the bone fragments are usually fixed with metallic plates and screws. Metallic devices other than titanium plates are usually removed after the osteotomy has consolidated, which often requires general anaesthesia. Titanium plates, supposed to be biotolerable, have been introduced in order to overcome this need for secondary intervention. However, due to corrosion, titanium particles have been found in scar tissue covering these plates and in locoregional lymph nodes. Therefore, their removal is also advocated. Self-reinforced poly (L-lactide) homopolymer (PLLA) and poly (L/D-lactide) stereocopolymers with a L/D molar ratio up to 85/15 have sufficient strength to overcome the need for additional support for the fixation of fractures. The plates can be bent at room temperature. The surgical technique and early results of a case of bimaxillary surgery and genioplasty fixed with bioresorbable material without postoperative rigid maxillomandibular fixation are reported.
추출된 의학 개체 (NER)
| 유형 | 영어 표현 | 한국어 / 풀이 | UMLS CUI | 출처 | 등장 |
|---|---|---|---|---|---|
| 시술 | orthognathic surgery
|
안면윤곽술 | dict | 2 | |
| 시술 | genioplasty
|
턱끝성형술 | dict | 1 | |
| 해부 | bone
|
scispacy | 1 | ||
| 해부 | tissue
|
scispacy | 1 | ||
| 재료 | plla
|
폴리락트산 | dict | 1 | |
| 약물 | titanium
|
C0040302
titanium
|
scispacy | 1 | |
| 약물 | poly
|
C0032400
Poly A
|
scispacy | 1 | |
| 약물 | L-lactide) homopolymer
|
scispacy | 1 | ||
| 약물 | stereocopolymers
|
scispacy | 1 | ||
| 약물 | poly (L-lactide)
|
scispacy | 1 | ||
| 약물 | poly (L/D-lactide)
|
scispacy | 1 | ||
| 질환 | fractures
|
C0016658
Fracture
|
scispacy | 1 | |
| 기타 | lymph nodes
|
scispacy | 1 | ||
| 기타 | maxillomandibular
|
scispacy | 1 |
MeSH Terms
Absorption; Adult; Anesthesia, General; Biocompatible Materials; Biodegradation, Environmental; Bone Plates; Bone Screws; Chin; Corrosion; Dental Alloys; Female; Humans; Jaw Fixation Techniques; Lymph Nodes; Malocclusion, Angle Class II; Mandible; Maxilla; Osteotomy; Polyesters; Stress, Mechanical; Surface Properties; Temperature; Tissue Distribution; Titanium
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