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

一种新的关节镜，它有一个通道，内窥镜手术的颞下颌关节（TMJ），和仪器所需的这种手术已经开发出来。在最近开发出具有高像素数（15，000像素）的非常小直径的纤维内窥镜之后，我们最近开发了一种新的关节内窥镜，旨在解决以前的问题。该关节镜将纤维内窥镜与手术通道（φ1.1mm）结合在一起。该纤维镜套管的长度和直径（φ2.9mm）与最常用的Striker关节镜套管相同。与此同时，我们还开发了手术工具，可通过关节镜的手术通道（探针、镊子、刀、烧灼刀等）。目的：从组织学和放射学角度评价关节镜下电凝松解绵羊颞下颌关节（TMJ）后的组织反应。使用13只成年美利奴羊，体重约60 kg。公司简介 ...更多信息 本研究中使用的器械是一种新开发的带通道关节镜。将电烙器插入内通道，将头端直接置于后囊的滑膜上，通过功率为125 W的电烙器从内侧壁到外侧壁损伤表面。然后将头端放置在从内侧到外侧部分用电皮质术损坏的结节关节面上，直到暴露底层骨。分别于术后第2、4、8、12周麻醉处死。术后第4周，所有椎间盘均穿孔。术后第12周髁突关节面部分裸露，部分表面纤维化修复，关节盘前移。这些变化在影像学和组织学上与晚期骨关节炎相似。结果表明，关节镜下电灼松解后囊滑膜可诱发绵羊TMJ骨关节炎性改变。少

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