OPERATIVE METHOD BY NEWLY DEVELOPED ARTHROSCOPE WITH A CHANNEL FOR ENDOSCOPIC SURGERY OF TEMPOROMANDIBULAR JOINT

新研制的带通道关节镜颞下颌关节腔镜手术方法

基本信息

批准号：
10671916
负责人：
KAKUDO Kenji
金额：
$ 2.05万
依托单位：
OSAKA DENTAL UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 1999
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10671916/
关键词：
Temporomandibular joint Arthroscope Electrocautery Arthroscopic surgery Sheep 関節鏡下手術

项目摘要

A new arthroscope, which has a channel for endscopic surgery of the temporomandibular joint (TMJ), and the instruments needed for this surgery have been recently developed. Following the recent development of a very small diameter fiberscope with a high pixel number (15,000 pixel), we have recently developed a new arthroscope, designed to resolve the previous problems. This arthroscope combines a fiberscope with a surgical channel (φ1.1mm). The length and diameter (φ2.9mm) of this fiberscope cannula are identical to those of the most frequently used Striker's arthroscope cannula. At the same time, we have developed the instruments for use in surgery that would fit through the surgical channel of this arthroscope (probe, forceps, knives, cautery knives, etc.). To evaluate the tissue response after arthroscopic lysis with electrocautery in the temporomandibular joint (TMJ) of sheep histologically and radiologically. Thirteen adult merino sheep, weighting about 60 kg, were used. The instr … More uments used in this study were a newly developed arthroscope with a channel. Electrocautery was inserted into the inner channel and the tip placed directly against the synovial membrane of the posterior pouch and the surface was injured from medial to lateral walls by electrocautery with a power of 125 watts. The tip is then placed against the articular surface of the tuber which was damaged from medial to lateral part with electrocortery until the underlining bone was exposed. At the 2nd, 4th, 8th, 12th week after the initial operation, the sheep were sacrificed by an anesthetic overdose. The specimens were decalcified and sagitally sectioned from lateral to medial for histologic study.At the 4th week after the initial operation, all discs were perforated. At the 12th week after the initial operation, the condylar articular surface was partly denuded in some areas, and part of the surface showed fibrous repair, and the disc was displaced to the anterior portion. These changes were radiographically and histologically similar to advanced osteoarthritis. Is was suggested that an arthroscopic lysis with electrocautery against the synovial membrane of the posterior pouch was induced the osteoarthritic change of sheep TMJ. Less

一个新的关节镜，具有颞下颌关节（TMJ）N最近开发的临时镜手术的通道。设计为先前的问题（φ1.1mm）该关节镜的手术通道（探针，镊子，刀具，刀刀等）。使用的仪器……在本研究中使用的更多UMEMS是一个带有电通道的关节镜用125瓦的电载体，将其放在块茎的关节表面上，从内侧到侧面，将骨骼暴露在骨骼上在组织学研究中从侧向到内侧进行了脱钙和暂停分泌。在最初的手术中，所有椎间盘都在某些区域进行了剥离。这些变化的部分是，与后袋的电疗法诱发了EP TMJ的骨变化