Qualitative Magnetic Resonance Imaging Assessment of the Semimembranosus Tendon in Patients with Medial Meniscal Tears

Author:

Obaid Haron1ORCID,Patel Adarsh1,McWalter Emily2,Ernst Mark3,Mondal Prosanta4,Shepel Michael L.1

Affiliation:

1. Department of Medical Imaging, Faculty of Medicine, University of Saskatchewan, Saskatoon, SK S7N 5A9, Canada

2. Department of mechanical Engineering, University of Saskatchewan, Saskatoon, SK S7N 5A9, Canada

3. Division of Orthopedic Surgery, Department of Surgery, Faculty of Medicine, University of Saskatchewan, Saskatoon, SK S7N 5A9, Canada

4. Clinical Statistic Unit, Faculty of Medicine, University of Saskatchewan, Saskatoon, SK S7N 5A9, Canada

Abstract

Background: To determine if there is an association between semimembranosus tendinosis and medial meniscal tears using MRI. Methods: A retrospective review of knee 3T MRI scans was performed to determine the presence or absence of medial meniscal tears in patients with semimembranosus tendinosis. All studies were interpreted by two musculoskeletal radiologists. Univariate association for the presence of semimembranosus tendinosis and medial meniscal tears was performed with a Chi-square test followed by logistic regression modelling among statistically significant associations. Results: A total of 150 knee MRI scans were reviewed (age 32.8 ± 7.1 years; 70 females). Semimembranosus tendinosis was present in 66 knees (44%) in the patient population. Semimembranosus tendinosis was present in 81% of patients with meniscal tears versus 36% of patients without meniscal tears (p < 0.0001). This association remained statistically significant when adjusted for age and sex with an adjusted odds ratio of 7.0 (p < 0.0003). Models adjusted for the above covariates and containing the interaction term produced an adjusted odds ratio of 13.0 (p < 0.0001) in men, while in women this association was non-significant with an adjusted odds ratio of 2.0 (p = 0.42). Conclusions: Subjects with semimembranosus tendinosis were seven times more likely to have medial meniscal tears even when adjusting for sex and age. This could help guide the appropriate postmeniscal repair rehabilitation protocol.

Publisher

MDPI AG

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