2013
DOI: 10.1016/j.clinbiomech.2013.01.010
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Correlations among measures of knee stiffness, gait performance and complaints in individuals with knee osteoarthritis

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Cited by 10 publications
(10 citation statements)
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“…Generally, the normal knee joint was slightly flexed from IC to LR and then extended from LR to MS [12], in our study, but our results showed that although KOAw is slightly extended in severe KOA, the KOAs remains in flexion from LR to MS. In MS, this mechanism acts to reduce the mechanical load by extending the knee joint, but a kinematic change secondary to failure of the knee joint structure in severe KOA increases the load on the joint and exacerbates pain [4,18]. Furthermore, varus thrust occurs, and the varus angle increases from IC to LR secondary to varus deformation, which increases the mechanical load on the medial side of the knee joint [19].…”
Section: Discussionmentioning
confidence: 99%
“…Generally, the normal knee joint was slightly flexed from IC to LR and then extended from LR to MS [12], in our study, but our results showed that although KOAw is slightly extended in severe KOA, the KOAs remains in flexion from LR to MS. In MS, this mechanism acts to reduce the mechanical load by extending the knee joint, but a kinematic change secondary to failure of the knee joint structure in severe KOA increases the load on the joint and exacerbates pain [4,18]. Furthermore, varus thrust occurs, and the varus angle increases from IC to LR secondary to varus deformation, which increases the mechanical load on the medial side of the knee joint [19].…”
Section: Discussionmentioning
confidence: 99%
“…However, patients treated with two cycles of PRGF‐Endoret underwent a significant higher improvement in WOMAC stiffness, LEQUESNE maximum walking distance, LEQUESNE activities of daily living and both global subscales than patients receiving only one PRGF‐Endoret cycle (OC group) ( P < 0.05). The sensation of knee stiffness is one of the six criteria evaluated in the WOMAC questionnaire [31], and although it is a symptom whose origin is complex, factors such as synovial fluid lubrication and composition, and periarticular muscle conditions play an important role in this symptom since these two joint elements are the most important shock absorbers [6] at knee level. The anti‐inflammatory effect of PRP on synovial membrane and articular cartilage of knee osteoarthritis patients may well reduce knee swelling which otherwise would trigger a spine reflex and inhibit the activation of periarticular muscle, thereby leading to muscle weakness and atrophy [6, 14], and eventually contribute to knee stiffness.…”
Section: Discussionmentioning
confidence: 99%
“…The pain with patients of KOA restricts activities of daily living, which is the most common complaint of KOA. 23 , 24 However, the correlation between radiographic KOA severity and knee pain is not as strong as would be expected. 25 It has been suggested that weak quadriceps muscles may contribute to the pain experienced by patients with KOA, as the quadriceps muscle is the principal dynamic stabilizer of the knee.…”
Section: Discussionmentioning
confidence: 96%