Diagnostic ability of a newly developed thin rod-lens arthroscope for osteoarthritis of the rabbit knee joint

• GOTO Mika

  First Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University

• KONDOH Toshirou

  Department of Oral and Maxillofacial Surgery, School of Dentistry, Nihon University at Matsudo

• HAMADA Yoshiki

  First Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University

• KOBAYASHI Kaoru

  Department of Oral Radiology, School of Dental Medicine, Tsurumi University

Bibliographic Information

Other Title

• 細径硬性関節鏡のウサギ変形性膝関節症に対する病変検出能力

Abstract

We developed a new thin rod-lens arthroscope (DRK scope-21) to achieve highly reliable arthroscopy of the temporomandibular joint (TMJ) under local anesthesia in an outpatient setting. In this study, the accuracy of this arthroscope for diagnosis of osteoarthritis (OA) was experimentally evaluated in 21 rabbit knee joints: 17 with OA and 4 without OA.<BR>The diagnostic accuracy of this arthroscope for OA based on stereomicroscopic findings was verified by histopathological examination and was compared with the accuracy of MRI and soft X-ray examination. The diagnostic sensitivity of the arthroscope was 100%, the specificity was 80.0%, and the accuracy was 95.2%. These values were higher than those of MRI (sensitivity, 50.0 %; specificity, 40.0 %; accuracy, 52.4%) or soft X-ray examination (sensitivity, 43.8%; specificity, 40.0 %; accuracy, 47.6%).<BR>In addition, the arthroscopic diagnosis of the severity of OA was compared with the stereomicroscopic diagnosis, considered the optimal standard. The severity of OA was classified into the following 3 stages: normal, fibrillation, and exposure of subchondral bone. The rate of agreement between arthroscopic diagnosis and stereomicroscopic diagnosis was 90.5%(19/21 joints). In the remaining 9.5%(2/21 joints), there was overdiagnosis by arthroscopy.<BR>In conclusion, the present findings show that the DRK scope-21 is highly accurate for diagnosis of OA, with a very low risk of failing to detect OA.

Journal

• Japanese Journal of Oral and Maxillofacial Surgery

  Japanese Journal of Oral and Maxillofacial Surgery 50 (3), 165-174, 2004

  Japanese Society of Oral and Maxillofacial Surgeons

Keywords

• arthroscopy
• thin rod-lens arthroscope
• osteoarthritis
• diagnostic accuracy

Details

• CRID: 1390001206533114112
• NII Article ID: 10018620320
• NII Book ID: AN00189163
• DOI: 10.5794/jjoms.50.165
• ISSN: 21861579
• ISSN: 00215163
• Web Site: https://search.jamas.or.jp/link/ui/2004189731
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed