The stability following advancement genioplasty with biodegradable screw fixation.
The purpose of this study was to compare postoperative stability using biodegradable screws with that of metal plates for fixation of advancement genioplasty. We studied patients who had advancement genioplasty alone or at the same time as other orthognathic surgery including mandibular setback. We assessed the lateral cephalographs at different time points (preoperatively, and 7 days, 3 months, 6 months, and 12 months postoperatively). A total of 54 patients were enrolled and 27 patients were assigned to each group. The position of pogonion was stable 12 months postoperatively, and the amount of skeletal advancement was reflected in soft tissue close to 100%. There were no clinical differences between biodegradable screws and conventional metal plates used for fixation. Biodegradable fixation for advancement genioplasty is a good option for patients who would require a second operation for removal of the plates.
Department of Oral & Maxillofacial Surgery, Oral Science Research Institute, Yonsei University College of Dentistry, Seoul, Republic of Korea. Electronic address: 266681@yuhs.ac.
Gyu-Tae
GT
Lee
Department of Oral & Maxillofacial Surgery, Oral Science Research Institute, Yonsei University College of Dentistry, Seoul, Republic of Korea. Electronic address: cancer7@yuhs.ac.
Hwi-Dong
HD
Jung
Private Practice, Vienna, VA, USA. Electronic address: drsangkim@gmail.com.
Sang Yoon
SY
Kim
Department of Oral & Maxillofacial Surgery, Oral Science Research Institute, Yonsei University College of Dentistry, Seoul, Republic of Korea. Electronic address: hspark709@yuhs.ac.
Hyung-Sik
HS
Park
Department of Oral & Maxillofacial Surgery, Oral Science Research Institute, Yonsei University College of Dentistry, Seoul, Republic of Korea. Electronic address: ysjoms@yuhs.ac.
Young-Soo
YS
Jung
D020341:Absorbable Implants; D000497:Alloys / Q000737:chemistry; D059925:Anatomic Landmarks / Q000473:pathology; D001672:Biocompatible Materials / Q000737:chemistry; D001860:Bone Plates; D001863:Bone Screws; D002508:Cephalometry / Q000379:methods; D002680:Chin / Q000473:pathology*; D005260:Female; D005500:Follow-Up Studies; D063172:Genioplasty / Q000295:instrumentation*; D006801:Humans; D008297:Male; D008311:Malocclusion, Angle Class I / Q000601:surgery; D008313:Malocclusion, Angle Class III / Q000601:surgery; D008334:Mandible / Q000473:pathology / Q000601:surgery; D056948:Orthognathic Surgical Procedures / Q000379:methods; D011091:Polyesters / Q000737:chemistry; D016896:Treatment Outcome; D055815:Young Adult
D000497:Alloys; D001672:Biocompatible Materials; D011091:Polyesters; C033616:poly(lactide)
Advancement genioplasty; Biodegradable fixation; Retrogenia