2017 ISAKOS Biennial Congress ePoster #1341

 

Clinical and Radiologic Outcomes after Single Leaf Resection of Medial Meniscus Horizontal Tear and in The Knee Varus Aligment

Chong Hyuk Choi, MD, Seoul KOREA, REPUBLIC OF
Ki Joon Jang, MD, Seoul KOREA, REPUBLIC OF
Gil Sung Yoon, MD, Seoul KOREA, REPUBLIC OF
Jun-Sik Kim, MD, Seoul, Ganseo-gu KOREA, REPUBLIC OF
Yoo Chul Jeong, MD, Seoul, Seodaemungu KOREA, REPUBLIC OF
Tae-Hwan Yoon, MD, Seoul KOREA, REPUBLIC OF

Yonsei University College of Medicine, Severance Hospital, Seoul, KOREA, REPUBLIC OF

FDA Status Not Applicable

Summary

Arthroscopic single leaf resection of medial meniscus posterior horn horizontal tear is effective treatment method as examined by clinical parameters, but medial joint space narrowing after single leaf resection in medial meniscus posterior horn horizontal tear is inevitable

Abstract

Purpose

Horizontal tear is degenerative tear and known that is effective to conservative treatment. But if there are some mechanical symptom, some authors perfomed conventional menisectomy. This study is to examine the postoperative clinical and radiologic outcomes of single leaf resection in medial meniscus horizontal tear and also to examine the effect of knee varus aligment

Materials And Methods

This study enrolled patients with medial meniscus horizontal tear who underwent single leaf resection between April 2010 and May 2012. Patients who have other concomitant ligament injury and previous operation history, beyond grade III cartilage damage, K-L grade III were excluded. Total 72 patients were enrolled in this study. Clinical assessments parameters were VAS score, International Knee Documentation Committee (IKDC) subjective knee score, Lysholm score and radiologic assessment parameters were medial joint space width, and Kellgren-Lawrence grade. We examined the postoperative clinical, radiologic outcomes and compared the clinical and radiologic outcomes A group(varus group) with B group(neutral group)

Result
There were no differences in demographic, clinical data and pre-op medial femoral condylar cartilage demage degree between the two groups. All clinical parameters including VAS score, Lysholm and IKDC scores improved significantly postoperatively (P<0.05)(VAS score:6.1->1.7, IKDC scores: 55.7->81.8, Lysholm score: 51->82). But there were no differences in clinical outcomes between two groups. Postoperative mean joint space narrowing was 0.86mm in A group, 0.40mm in B group. It was statistically significant(P<0.05). Progression of the Kellgren-Lawrence grade was 9 in 32 patients in A group, 4 in 40 patients in B group. It was statistically significant between two groups(P<0.05)

Conclussion
Arthroscopic single leaf resection of medial meniscus posterior horn horizontal tear is effective treatment method as examined by clinical parameters, but medial joint space narrowing after single leaf resection in medial meniscus posterior horn horizontal tear is inevitable, especially if patients have knee varus alignment.

Kyewords
Medial meniscus, horizontal tear, single leaf resection, varus aligment