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Unfavorable Results of Partial Meniscectomy for Complete Posterior Medial Meniscus Root Tear With Early Osteoarthritis: A 5-to 8-Year Follow-Up Study

Authors
Han, Seung BeomShetty, Gautam M.Lee, Dae HeeChae, Dong JuSeo, Seung SukWang, Kook HyunYoo, Si HoonNha, Kyung Wook
Issue Date
Oct-2010
Publisher
W B SAUNDERS CO-ELSEVIER INC
Citation
ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY, v.26, no.10, pp.1326 - 1332
Indexed
SCIE
SCOPUS
Journal Title
ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY
Volume
26
Number
10
Start Page
1326
End Page
1332
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/115545
DOI
10.1016/j.arthro.2010.01.032
ISSN
0749-8063
Abstract
Purpose: The aim of this retrospective study was to evaluate the clinical and radiographic outcomes of arthroscopic partial meniscectomy for complete posterior medial meniscus root tear (PMMRT) in patients with early radiographic evidence of knee osteoarthritis at a minimum follow-up of 5 years. Methods: Forty-six cases had complete PMMRT with follow-up of at least 5 years and were treated with arthroscopic partial meniscectomy. On the basis of medical records, we reviewed the arthroscopic findings of joint degeneration (Outerbridge grading), clinical results using the modified Lysholm (ML) knee score and a patient questionnaire, and radiographic evaluation of degeneration using Kellgren-Lawrence (KL) grading. Results: The incidence of complete PMMRT in the study population was 15%. At a mean follow-up of 78 months (range, 60 to 103 months), the mean ML score significantly improved from 72 (range, 62 to 78) preoperatively to 77 (range, 70 to 98) at final follow-up (P < .01), 16 patients (35%) showed progression of degeneration from KL grade 0 to 2 preoperatively to KL grade 2 to 4, 56% of patients indicated improvement in pain, 67% of patients were satisfied with the results of the procedure, and 19% of patients underwent reoperation. There was a significant negative correlation between chondral wear during arthroscopy (rho = -0.516, P = .002) and preoperative KL grade (rho = -0.429, P = .004) with ML score at final follow-up. Conclusions: Although arthroscopic partial meniscectomy for complete PMMRT significantly improved ML scores postoperatively, only 56% of patients had improvement in pain, 67% were satisfied with the outcome of the procedure, and 35% showed radiographic progression of osteoarthritis at a mean follow-up of 77 months. Level of Evidence: Level IV, therapeutic study.
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