Second-Look Arthroscopic Results after Repair of Medial Meniscus Root Tears

Sung-Woo Kim; Min-Kyu Sung; Jung-Yun Choi

doi:10.4055/jkoa.2014.49.4.255

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Kim, Sung, and Choi: Second-Look Arthroscopic Results after Repair of Medial Meniscus Root Tears

Original Article

Journal of the Korean Orthopaedic Association 2014; 49(4): 255-262.

Published online: 27 August 2014

DOI: https://doi.org/10.4055/jkoa.2014.49.4.255

Second-Look Arthroscopic Results after Repair of Medial Meniscus Root Tears

Sung-Woo Kim, M.D.^*, Min-Kyu Sung, M.D., Jung-Yun Choi, M.D.

Department of Orthopedic Surgery, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea.

^*Changwon Metro Hospital, Changwon, Korea.

Correspondence to: Jung-Yun Choi, M.D. Department of Orthopedic Surgery, Sanggye Paik Hospital, Inje University College of Medicine, 1342 Dongil-ro, Nowon-gu, Seoul 139-707, Korea. TEL: +82-2-950-1032, FAX: +82-2-934-6342, cjyortho@hanmail.net

Received 25 July 2013 Revised 21 January 2014 Accepted 24 March 2014

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose

The purpose of this study is to evaluate the healing rate of medial meniscus root repair according to the duration of symptom and to determine the association between healing status and the clinical result after medial meniscus root repair.

Materials and Methods

Eighty-four patients who underwent arthroscopic meniscal root repair and second-look arthroscopy were included. Second-look arthroscopy evaluation of meniscal healing status was performed by dividing medial meniscal posterior root into the anterior half and posterior half and classifying by contact degree on the surface of the tibia and continuity. Clinical results were analyzed according to International Knee Documentation Committee (IKDC) subjective scores and Lysholm scores. In addition, after dividing cases according to acute group and chronic group by six-month symptomatic period, differences were evaluated.

Results

Significant differences in post-operative clinical results were observed between the acute group and chronic group. A significant difference in meniscal healing status was observed between the two groups (p<0.001). A higher postoperative IKDC score and Lysholm score was observed for the completely healed group, as confirmed by second-look arthroscopy, than for the other groups.

Conclusion

In the aspect of improving the clinical result, arthroscopic medial meniscal posterior root repair is a good treatment modality. Early repair of medial meniscal posterior root may lead to improvements in the clinical result such as meniscal healing status.

Keywords: medial meniscus, posterior root tear, meniscal healing status

Figures and Tables

Figure 1

Arthroscopic findings were classified as grading of meniscal healing. (A) Completely healed. (B) Partially healed. (C) Failure.

Figure 2

Comparison of clinical results by meniscal healing state. ^*Significant at p<0.05. IKDC, International Knee Documentation Committee; Group C, completely healed group; Group P, partially healed group; Group F, failure group.

Table 1

Comparison of Age, Sex, IKDC Subjective Score, Lysholm Score and Meniscal Healing Status between Acute and Chronic Groups

Values are presented as mean±standard deviation, number, or number (%). p-value using t-test and chi-square test. ^*Significant at p<0.05. IKDC, International Knee Documentation Committee; Group C, completely healed group; Group P, partially healed group; Group F, failure group.

Table 2

Results of a Kruskal-Wallis Test and the Conover Multiple Comparison Test as a post hoc Analysis for Comparison of the IKDC Subjective Score and the Lysholm Score with the Three Groups

Values are presented as mean±standard deviation. ^*Significant at p<0.05. ^†Differences between the C group, P group and F group were significant (p<0.05). ^‡Differences between the C group, P group and F group were significant (p<0.05). IKDC, International Knee Documentation Committee; Group C, completely healed group; Group P, partially healed group; Group F, failure group.

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