The Effect of Arthroscopic Medial Meniscectomy in Degenerative Arthritis of the Knee

슬관절 퇴행성 관절염에서 관절경적 내측 반월상 연골 절제술의 효과

  • Kim, Do-Yeon (Department of Orthopedic Surgery, Gangnam Severance hospital, Yonsei University College of Medicine) ;
  • Choi, Yun-Jin (Department of Orthopedic Surgery, Gangnam Severance hospital, Yonsei University College of Medicine) ;
  • Lee, Seung-Joo (Department of Orthopedic Surgery, Gangnam Severance hospital, Yonsei University College of Medicine) ;
  • Ko, Min-Seok (Department of Orthopedic Surgery, Gangnam Severance hospital, Yonsei University College of Medicine) ;
  • Choi, Chong-Hyuk (Department of Orthopedic Surgery, Gangnam Severance hospital, Yonsei University College of Medicine)
  • 김도연 (연세대학교 의과대학 정형외과교실) ;
  • 최윤진 (연세대학교 의과대학 정형외과교실) ;
  • 이승주 (연세대학교 의과대학 정형외과교실) ;
  • 고민석 (연세대학교 의과대학 정형외과교실) ;
  • 최종혁 (연세대학교 의과대학 정형외과교실)
  • Published : 2010.10.31

Abstract

Purpose: In patients with meniscal tear with degenerative arthritis, controversy remains as to whether arthroscopic menisectomy is worthwhile or not. The purpose of this study was to evaluate the effect of arthroscopic medial meniscectomy in degenerative arthritis of the knee with meniscal tear. We also intended to identify pertinent indications and risk factors. Materials and Methods: 287 patients underwent arthroscopic medial meniscectomy from 2006 to 2008; 103 patients who had Kellgren-Lawrence grade II, III arthritis of the knee, were over 50 years old, and had minimum 1 year follow-up, were analyzed in this study. Clinical assessment was performed retrospectively using the arthroscopic surgery database, medical records, questionnires and interviews. Assessment included visual analogue scale (VAS) scores and Lysholm scores. Results: The mean Lysholm score increased from 69 to 85 after surgery. The mean VAS score improved from 7 to 3.1 after surgery. Kellgren-Lawrence grade II group and group with trauma history showed significant improvement of pain and function compared with grade III and group without trauma history. Outerbridge grade I showed significantly more improvement of pain than grade III and IV. Multiple regression analysis showed that trauma history and Outerbridge grade affect the improvement of Lysholm score. Conclusion: In one year follow-up, arthroscopic medial menisectomy can improve pain and function of patients in Kellgren-Lawrence grade II, III degenerative arthritis of the knee. We could expect good results especially in group with low Kellgren-Lawrence grade, trauma history, and mild articular cartilage lesion.