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首页> 外文期刊>Knee surgery, sports traumatology, arthroscopy: official journal of the ESSKA >Quadriceps femoris muscle function prior and after total knee arthroplasty in women with knee osteoarthritis
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Quadriceps femoris muscle function prior and after total knee arthroplasty in women with knee osteoarthritis

机译：膝骨关节炎妇女全膝关节置换术前后股四头肌肌肉功能

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Purpose: The aim of the present study was to evaluate an isometric voluntary force generation and relaxation capacity of the quadriceps femoris (QF) muscle prior and after total knee arthroplasty (TKA). Methods: Isometric maximal voluntary contraction force, rate of force development, voluntary activation, half-relaxation time, and latency of contraction of the QF muscle were recorded in 12 female patients (aged 49-68 years) with knee osteoarthritis one day before, 3 and 6 months following TKA in the operated and nonoperated leg. Knee pain intensity was assessed by visual analog scale, and Knee injury and Osteoarthritis Outcome Score (KOOS) questionnaire was used to assess knee problems during daily living. Results: A significant decrease in knee pain and significant increase in KOOS were established after TKA. Maximal voluntary isometric force in the operated leg was lower (P < 0. 05) before, 3 and 6 months after TKA as compared to the nonoperated leg. Rate of force development of the QF muscle in the operated leg compared to the nonoperated leg was significantly lower (P < 0. 05) 3 and 6 months after TKA. Voluntary activation, latency of contraction, and half-relaxation time of the QF muscle did not differ significantly before, 3 and 6 months after TKA. Conclusions: The present study indicated reduced maximal and explosive strength of quadriceps femoris muscle in the operated leg 3 and 6 months after TKA with no significant changes in voluntary activation, and capacity for rapid contraction and relaxation. Level of evidence: Prospective comparative study, Level II.
机译：目的：本研究的目的是评估全膝关节置换术（TKA）前后股四头肌（QF）肌肉的等距自愿力量产生和放松能力。方法：前一天，在12名女性（年龄49-68岁）膝骨关节炎患者中，记录了等距最大自愿收缩力，力量发展率，自愿激活，半松弛时间和QF肌肉收缩潜伏期，3 TKA手术后和非手术后6个月。通过视觉模拟量表评估膝关节疼痛强度，并使用膝关节损伤和骨关节炎结果评分（KOOS）问卷评估日常生活中的膝盖问题。结果：TKA后，膝关节疼痛明显减轻，KOOS明显升高。与非手术腿相比，手术腿之前，3和6个月时，手术腿的最大自愿等距力较低（P <0. 05）。与非手术腿相比，手术腿QF肌肉的力量发展速度显着降低（P <0. 05），在TKA后3和6个月。 TKA之前，3和6个月后，QF肌肉的自愿激活，收缩潜伏期和半松弛时间没有显着差异。结论：本研究表明，在TKA术后3个月和6个月，股四头肌的最大和爆发力降低，而主动激活无明显变化，并且具有快速收缩和放松的能力。证据级别：前瞻性比较研究，II级。

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