Stauffer R N, Chao E Y, Györy A N
Clin Orthop Relat Res. 1977 Jul-Aug(126):246-55.
Clinical and roentgenographic examinations do not provide objective information on the functional performance of a diseased knee joint. In the present study, biomechanical parameters of knee joint function for 95 patients (162 knees) with rheumatoid arthritis and degenerative joint disease were studied in a gait laboratory and compared with those for 29 normal subjects. Gait abnormalities of the patient groups were significant and were related more to the functional status of the knee than to patient age and sex or the specific diagnosis. Knee joint disease produced an inefficient gait that seemed to mitigate joint pain (by reducing poorly tolerated compressive forces on the joint) and to increase proprioceptive feedback (in order to increase dynamic muscular control of the unstable joint). Biomechanical parameters were statistically correlated with some clinical and roentgenographic features to allow standardization of functional assessment of the diseased knee joint.
临床和X线检查无法提供有关患病膝关节功能表现的客观信息。在本研究中，在步态实验室对95例类风湿性关节炎和退行性关节病患者（162个膝关节）的膝关节功能生物力学参数进行了研究，并与29名正常受试者的参数进行了比较。患者组的步态异常很明显，并且更多地与膝关节的功能状态有关，而不是与患者的年龄、性别或具体诊断有关。膝关节疾病导致步态效率低下，这似乎减轻了关节疼痛（通过减少关节上难以耐受的压缩力）并增加了本体感觉反馈（以便增强对不稳定关节的动态肌肉控制）。生物力学参数与一些临床和X线特征在统计学上相关，从而能够对患病膝关节的功能评估进行标准化。
