1. Preoperative diagnosis of knee cartilage, meniscal, and ligament injuries by magnetic resonance imaging.
- Author
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Nakagawa, Yasuaki, Mukai, Shogo, Sakai, Sayako, Nakamura, Ryota, Takahashi, Motoi, and Nakagawa, Shinnosuke
- Subjects
KNEE injuries ,MENISCECTOMY ,LIGAMENT injuries ,MAGNETIC resonance imaging ,ANTERIOR cruciate ligament injuries ,ARTICULAR cartilage ,CARTILAGE - Abstract
Purpose: The purpose of the study was to report on the current accuracy measures specific to 1.5-Tesla MRI of the knee in the patient population prone to injuries of the anterior cruciate ligament (ACL), the menisci, and the articular cartilage. Methods: We accrued patients between January 2018 through August 2021 who underwent a preoperative MRI and were diagnosed with an articular cartilage injury either due to unevenness of articular cartilage in T2-weighted sequences or due to the irregularity of subchondral bone in T1-weighted sequences. All patients were treated arthroscopically. Sensitivity, specificity, and accuracy were calculated for the detection of ACL, meniscus, and cartilage injuries. A P-value of < 0.05 represented statistical significance. Results: One-hundred and forty-seven cases which included 150 knee joints were enrolled in this study. The mean age at the time of surgery was 42.9 years-old. The sensitivity in the diagnosis of ACL injuries was significantly greater than that in the diagnosis of cartilage injuries (P = 0.0083). The ratios of the equality of operative indication in 6 recipient sites were found to be between 90.0% and 96.0%. The diagnostic critical point was within a 1 cm in diameter. Conclusion: The diagnostic sensitivity in cartilage injuries was significantly lower than ones of ACL and meniscal injuries. The ratios of the equality of operative indication was determined to be between 90.0% and 96.0%, if we consider the unevenness of articular cartilage or the irregularity of subchondral bone. Level of evidence: Level III, Prospective diagnostic cohort study. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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