Keller K, Engelhardt M
2. Medizinische Klinik und Poliklinik, Universitätsmedizin Mainz (Direktor: Univ.-Prof. Dr. med. T. Münzel).
Klinik für Orthopädie, Unfall- und Handchirurgie des Klinikums Osnabrück (Direktor: PD Dr. med. M. Engelhardt) (vormals: Orthopädische Universitätsklinik Stiftung Friedrichsheim der Johann-Wolfgang Goethe-Universität Frankfurt am Main (Direktor: Univ.-Prof. Dr. med. L. Zichner)).
Sportverletz Sportschaden. 2014 Dec;28(4):199-203. doi: 10.1055/s-0034-1385015. Epub 2014 Aug 19.
Backround: Knee trauma with arthrogenic muscle inhibition (AMI) lead to muscle weakness. The aim of this study was to analyse the intensity of AMI after meniscus and cartilage injuries and to investigate the association between age, BMI and severity of cartilage leasions with AMI.
48 patients with meniscus or cartilage injury were preoperatively interviewed and examined for isometric maximum force values of the extension muscles of the knee joints. We analysed AMI as comparison of maximum isometric force values between healthy and injured leg by use of Wilcoxon matched pairs test. Moreover a regression analysis was done to assess the association between age, BMI and severity of cartilage lesion with AMI.
Trauma of the knee joint with meniscus or cartilage injuries led to a 23.6 % reduction of maximum force values of injured in comparison to healthy leg (460.1 ± 223.6 N vs. 601.9 ± 224.6 N, P < 0,000001) in mean. Regression analysis did not show associations between age (β -2.645, P = 0.345), BMI (β 2.268, P = 0.792) or severity of cartilage damage (β -13.527, P = 0.670) with AMI.
Trauma of the knee joint with meniscus or cartilage damage cause an AMI with 23.6 % force reduction. We could not identify an association between age and AMI.
背景：膝关节创伤伴发创伤性肌肉抑制（AMI）会导致肌肉无力。本研究旨在分析半月板和软骨损伤后AMI的强度，并探讨年龄、体重指数（BMI）与软骨损伤严重程度和AMI之间的关联。
对48例半月板或软骨损伤患者进行术前访谈，并检查膝关节伸展肌肉的等长最大力量值。我们通过使用Wilcoxon配对检验分析AMI，将健侧和患侧的最大等长力量值进行比较。此外，进行回归分析以评估年龄、BMI和软骨损伤严重程度与AMI之间的关联。
半月板或软骨损伤的膝关节创伤导致患侧最大力量值相较于健侧平均降低23.6%（460.1±223.6牛 vs. 601.9±224.6牛，P<0.000001）。回归分析未显示年龄（β -2.645，P = 0.345）、BMI（β 2.268，P = 0.792）或软骨损伤严重程度（β -13.527，P = 0.670）与AMI之间存在关联。
半月板或软骨损伤的膝关节创伤会导致AMI，力量降低23.6%。我们未能确定年龄与AMI之间存在关联。
