da Silva Hésojy Gley Pereira Vital, Cliquet Junior Alberto, Zorzi Alessandro Rozim, Batista de Miranda João
Faculty of Medical Sciences of the Universidade Estadual de Campinas (FM UNICAMP) - Campinas, SP, Brazil.
Acta Ortop Bras. 2012;20(3):150-6. doi: 10.1590/S1413-78522012000300004.
Demonstrate the presence and magnitude of biomechanical variables during gait in patients with medial knee osteoarthritis (OA) and the relationship with the knee loading.
Gait of 21 subjects diagnosed with medial knee OA was evaluated and compared to the control group.
THE GROUP WITH OA SHOWED: Lower gait speed (0.8 ± 0.1 vs. 1.1 ± 0.1m/s), higher peak early (2.6 ± 1.2 vs. 0.3 ± 1.4 Nm/Kg) and late peak of the adduction moment (1.8 ± 0.7 vs. 0.9 ± 0.2 Nm/Kg), higher peak flexor moment (1.6 ± 0.9 vs. 0.6 ± 0.4 Nm/Kg), high dynamic peak varus (11.5º ± 8.3 vs. 3º ± 3.9), higher peak flexion (15.6º ± 8 vs. 9.3º to ± 4.1), with a flexion tendency (5.5º ± 8.5) in the stance phase, smaller peak of flexion (58.7º ± 13.3 vs. 67.5º ± 4.8) in the balance phase and higher peaks of external rotation (25.5º ± 12.7 vs. 0.5º ± 22.4).
Patients with medial knee OA show changes in gait with increased external rotation, speed reduction, increased flexor moment and flexion in the stance phase, insufficient for reduction of the load. Level of Evidence III, Case Control Study.
证明膝关节内侧骨关节炎（OA）患者在步态过程中生物力学变量的存在及其大小，以及与膝关节负荷的关系。
对21名被诊断为膝关节内侧OA的受试者的步态进行评估，并与对照组进行比较。
OA组表现为：步态速度较低（0.8±0.1 vs. 1.1±0.1m/s），早期内收力矩峰值较高（2.6±1.2 vs. 0.3±1.4 Nm/Kg）和晚期内收力矩峰值较高（1.8±0.7 vs. 0.9±0.2 Nm/Kg），屈肌力矩峰值较高（1.6±0.9 vs. 0.6±0.4 Nm/Kg），动态内翻峰值较高（11.5°±8.3 vs. 3°±3.9），屈曲峰值较高（15.6°±8 vs. 9.3°±4.1），站立期有屈曲倾向（5.5°±8.5），平衡期屈曲峰值较小（58.7°±13.3 vs. 67.5°±4.8），外旋峰值较高（25.5°±12.7 vs. 0.5°±22.4）。
膝关节内侧OA患者步态出现变化，外旋增加、速度降低、屈肌力矩增加以及站立期屈曲增加，不足以减轻负荷。证据级别III，病例对照研究。
