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A new magnetic resonance imaging grading system for anterior cruciate ligament myxoid degeneration in osteoarthritis of the knee.
Nakamura, Yutaka; Ogawa, Hiroyasu; Ichikawa, Katsuhiro; Sohmiya, Kazuki; Sengoku, Masaya; Shimokawa, Tetsuya; Onishi, Kazuichiro; Akiyama, Haruhiko.
Afiliación
  • Nakamura Y; Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, 501-1194 Japan.
  • Ogawa H; Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, 501-1194 Japan; Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, Gifu, 503-0015 Japan. Electronic address: ogawa.hiroyasu.f5@f.gifu-u.ac.jp.
  • Ichikawa K; Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, 501-1194 Japan.
  • Sohmiya K; Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, 501-1194 Japan.
  • Sengoku M; Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, Gifu, 503-0015 Japan.
  • Shimokawa T; Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, Gifu, 503-0015 Japan.
  • Onishi K; Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, Gifu, 503-0015 Japan.
  • Akiyama H; Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, 501-1194 Japan.
Orthop Traumatol Surg Res ; 110(1): 103740, 2024 Feb.
Article en En | MEDLINE | ID: mdl-37913867
BACKGROUND: This study aimed to investigate association between magnetic resonance imaging (MRI) and histological findings of degenerated anterior cruciate ligament (ACL) in knee osteoarthritis (OA), and based on this result, to develop a new ACL degeneration grading system by MRI that corresponds to histological findings of degenerated ACL. HYPOTHESIS: MRI signal intensity of the ACL could correspond to histological findings of collagen degeneration. PATIENTS AND METHODS: A collection of 106 ACL specimens from 85 patients who underwent primary total knee arthroplasty was investigated for signal intensity of the ACL and muscle on axial Fat-saturated proton density-weighted MRI and MRI signal intensity ratio (ACL/muscle) was calculated. The correlation between ACL histological degeneration and MRI ACL/muscle signal intensity ratio was analyzed. The ACL was stratified into 3 grades based on signal intensity relative to muscle intensity (grade 1, low; grade 2, iso; and grade 3, high), and the extent to ACL degeneration in each MRI ACL degeneration grade was evaluated. RESULTS: Collagen degeneration (53.5±24.0%) and myxoid change (25.2±18.8%) in degenerated ACL significantly correlated with MRI signal intensity ratio of the ACL/muscle (r=0.62, p<0.0001; r=0.67, p<0.0001). ACL were assigned to grade 1 (n=22 [20.8%]), grade 2 (n=56 [52.8%]), and grade 3 (n=28 [26.4%]). ACL collagen degeneration was 34.8±18.4% in grade 1, 49.3±21.7% in grade 2, and 76.6±12.0% in grade 3. ACL myxoid change was 10.0±11.3% in grade 1, 21.3±14.1% in grade 2, and 45.0±15.3% in grade 3. DISCUSSION: The ACL/muscle signal intensity ratio on MRI correlated with the extent to ACL myxoid degeneration. The new MRI ACL degeneration grade is helpful to estimate the extent to ACL myxoid degeneration in knee OA. LEVEL OF EVIDENCE: III; retrospective cohort study.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Osteoartritis de la Rodilla / Lesiones del Ligamento Cruzado Anterior Límite: Humans Idioma: En Revista: Orthop Traumatol Surg Res Año: 2024 Tipo del documento: Article Pais de publicación: Francia
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Osteoartritis de la Rodilla / Lesiones del Ligamento Cruzado Anterior Límite: Humans Idioma: En Revista: Orthop Traumatol Surg Res Año: 2024 Tipo del documento: Article Pais de publicación: Francia