PULSED HOLMIUM - YTTRIUM-ALUMINUM-GARNET (HO-YAG) LASER ABLATION OF FIBROCARTILAGE AND ARTICULAR-CARTILAGE

被引：55

作者：

TRAUNER, K ^{[1
]}

NISHIOKA, N ^{[1
]}

PATEL, D ^{[1
]}

机构：

[1] MASSACHUSETTS GEN HOSP,WELLMAN LABS PHOTOMED,FRUIT ST,BOSTON,MA 02114

来源：

AMERICAN JOURNAL OF SPORTS MEDICINE | 1990年 / 18卷 / 03期

关键词：

D O I：

10.1177/036354659001800316

中图分类号：

R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学（修复外科学）];

学科分类号：

摘要：

A new, near-infrared, pulsed holmium laser (wave length, 2.1 μm; pulse duration, 400 μs) was used to ablate bovine articular cartilage and meniscal fibrocar tilage. Microscopic examination revealed zones of ther mal damage extending 550 μm from ablation sites. Ablation rates were measured with a mass loss tech nique. Above threshold, mass removal rates were pro portional to laser radiant exposure. Threshold radiant exposure for ablation was 50 J/cm2 for articular carti lage and 11 J/cm2 for meniscal fibrocartilage. Because the holmium laser can precisely and rapidly resect cartilaginous tissues with only moderate necrosis, func tion in a saline environment in direct contact with tissue, and be transmitted through conventional optical fibers, it has the potential to become a useful tool for the precise arthroscopic removal of intraarticular tissue. © 1990, SAGE Publications. All rights reserved.

引用

页码：316 / 320

页数：5

共 23 条

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