caa a22 4500 60545891X CHVBK 20210128100231.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s00167-014-2891-y doi (NATIONALLICENCE)springer-10.1007/s00167-014-2891-y Intercondylar notch size influences cyclops formation after anterior cruciate ligament reconstruction [Elektronische Daten] [Masataka Fujii, Takayuki Furumatsu, Shinichi Miyazawa, Yukimasa Okada, Takaaki Tanaka, Toshifumi Ozaki, Nobuhiro Abe] Purpose: The purpose of this study was to investigate the incidence of cyclops lesions and its relationship with the cross-sectional area of the intercondylar notch. Methods: For this study, 55 patients (24 male and 31 female) underwent follow-up arthroscopy after bi-socket anterior cruciate ligament reconstruction with hamstring tendon grafts were included. All patients underwent magnetic resonance imaging measurements of intercondylar notch dimensions. We compared the femoral intercondylar notch sizes and bone tunnel sizes between knees with cyclops lesions (cyclops group) and those without cyclops lesions (no-cyclops group). The mean percentage of the tunnel size to the cross-sectional area of the femoral intercondylar notch was also compared between the groups. The median follow-up duration was 3.8years. Results: Cyclops lesions were found in 15 of the 55 knees (27.3%) on second-look arthroscopy (cyclops group). Only 6 of the 55 knees (10.9%) had extension loss (cyclops syndrome). The cyclops group included 3 men and 12 women. The two groups showed a statistical difference in sex variation (P=0.04). No significant differences were found in the femoral and tibial tunnel sizes between the two groups. The cross-sectional area of the femoral intercondylar notch was significantly smaller in the cyclops group (251.7±63.2mm2) than in the no-cyclops group (335.6±77.6mm2) (P<0.001). The percentage of the total femoral tunnel size to the cross-sectional area of the femoral intercondylar notch was significantly higher in the cyclops group (18.6±5.3%) than in the no-cyclops group (13.2±3.6%) (P=0.02). Conclusions: A smaller intercondylar notch size may be a potential risk factor for cyclops lesion formation. Level of evidence: Case-control study, Level IV. Springer-Verlag Berlin Heidelberg, 2014 Cyclops lesion nationallicence Cyclops syndrome nationallicence Anterior cruciate ligament reconstruction nationallicence Intercondylar notch nationallicence Cross-sectional area nationallicence Bone tunnel nationallicence Fujii Masataka Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, 700-8558, Okayama, Japan aut Furumatsu Takayuki Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, 700-8558, Okayama, Japan aut Miyazawa Shinichi Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, 700-8558, Okayama, Japan aut Okada Yukimasa Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, 700-8558, Okayama, Japan aut Tanaka Takaaki Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, 700-8558, Okayama, Japan aut Ozaki Toshifumi Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, 700-8558, Okayama, Japan aut Abe Nobuhiro Department of Orthopaedic Surgery and Sport Medicine, Kawasaki Medical School, 2-1-80 Nakasange, Kita-ku, 700-8505, Okayama, Japan aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/4(2015-04-01), 1092-1099 0942-2056 23:4<1092 2015 23 167 https://doi.org/10.1007/s00167-014-2891-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00167-014-2891-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fujii Masataka Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, 700-8558, Okayama, Japan aut NATIONALLICENCE 700 1- Furumatsu Takayuki Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, 700-8558, Okayama, Japan aut NATIONALLICENCE 700 1- Miyazawa Shinichi Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, 700-8558, Okayama, Japan aut NATIONALLICENCE 700 1- Okada Yukimasa Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, 700-8558, Okayama, Japan aut NATIONALLICENCE 700 1- Tanaka Takaaki Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, 700-8558, Okayama, Japan aut NATIONALLICENCE 700 1- Ozaki Toshifumi Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, 700-8558, Okayama, Japan aut NATIONALLICENCE 700 1- Abe Nobuhiro Department of Orthopaedic Surgery and Sport Medicine, Kawasaki Medical School, 2-1-80 Nakasange, Kita-ku, 700-8505, Okayama, Japan aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/4(2015-04-01), 1092-1099 0942-2056 23:4<1092 2015 23 167