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- Title
Cyclops lesions detected by MRI are frequent findings after ACL surgical reconstruction but do not impact clinical outcome over 2 years.
- Authors
Facchetti, Luca; Schwaiger, Benedikt; Gersing, Alexandra; Guimaraes, Julio; Nardo, Lorenzo; Majumdar, Sharmila; Ma, Benjamin; Link, Thomas; Li, Xiaojuan; Schwaiger, Benedikt J; Gersing, Alexandra S; Guimaraes, Julio Brandao; Ma, Benjamin C; Link, Thomas M; UCSF-P50-ACL Consortium; AF-ACL Consortium
- Abstract
<bold>Objectives: </bold>To assess the impact of cyclops lesions with MRI in patients treated for anterior cruciate ligament (ACL) tears on clinical outcome.<bold>Methods: </bold>In 113 patients (age 29.8 ± 10.5y; 55 females; BMI 24.8 ± 3.7 kg/m2) with complete ACL tear, 3 T-MRI scans were obtained before, 6-months, 1-year (n = 75) and 2-years (n = 33) after ACL reconstruction. Presence and volume of cyclops lesions were assessed. Clinical outcomes were measured using the Knee injury and Osteoarthritis Outcome Score (KOOS) and differences between time points (∆KOOS) were calculated. Changes of KOOS subscales were compared between patients with and without cyclops lesion. KOOS was also correlated with lesion volume.<bold>Results: </bold>Cyclops lesions were found in 25% (28/113), 27% (20/75) and 33% (11/33) of patients after 6-months, 1- and 2-years, respectively. The lesion volume did not change significantly (P > 0.05) between time points, measuring 0.65 ± 0.59, 0.81 ± 0.70 and 0.72.9 ± 0.96 cm3, respectively. Clinical outcomes based on KOOS subscales were not significantly different in patients with cyclops lesions compared to those without cyclops lesions (each comparison P > 0.05), and no significant associations of clinical outcomes with lesion volume were found (P > 0.05).<bold>Conclusions: </bold>Neither presence nor size of cyclops lesions within the first 2-years after ACL surgery were associated with inferior clinical outcome.<bold>Key Points: </bold>• Cyclops lesions had a prevalence of 25% in patients after ACL reconstruction. • Subjects with cyclops lesions did not have an inferior clinical outcome. • Cyclops lesions developed within the first 6 months after surgery. • The size of cyclops lesions did not significantly change over a period of 2 years.
- Subjects
MAGNETIC resonance imaging; ANTERIOR cruciate ligament; ANTERIOR cruciate ligament surgery; TISSUE wounds; HEALTH outcome assessment; COMPARATIVE studies; DIAGNOSTIC imaging; KNEE; LONGITUDINAL method; RESEARCH methodology; MEDICAL cooperation; COMPUTERS in medicine; POSTOPERATIVE period; PROGNOSIS; RESEARCH; RESEARCH evaluation; EVALUATION research; FIBROSIS; SEVERITY of illness index
- Publication
European Radiology, 2017, Vol 27, Issue 8, p3499
- ISSN
0938-7994
- Publication type
journal article
- DOI
10.1007/s00330-016-4661-3